Best Lockable Roof Cargo Boxes: 15 Spec-Based Picks
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
Finding the best lockable roof cargo boxes requires looking at published specs rather than opinions. We compared 15 options ranked by their official data. The Asinking 20 cu ft Waterproof Roof Bag leads because its 20 cubic feet of capacity and 52-inch length offer practical storage for most vehicles. Each pick reflects specific dimensions, materials, and lock mechanisms listed by manufacturers. This guide helps you decide which size and mount type fits your roof rack and security needs.
Quick picks
The best fit for you
- You need lockable, waterproof storage for any car Asinking 20 cu ft Waterproof Roof Bag This 20 cu ft bag is fully lockable and waterproof for universal vehicle use.
- You want a budget-friendly, foldable lockable option SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo It offers 20 cu ft capacity, a combination lock, and easy folding storage.
- You prefer premium dual-sided access with security Yakima SkyBox NX 16 LG This 16 cu ft box features dual-sided access and SKS lock security.
- You need compact lockable storage for small vehicles DNA Motoring 11 cu ft Roof Box Its 11 cu ft size and 110 lb load capacity fit small cars well.
- You want extra-large soft-sided lockable cargo space ARKSEN Extra-Wide 42 cu ft Roof Bag This 42 cu ft bag provides massive lockable capacity for large loads.
Our 15 picks
Asinking 20 cu ft Waterproof Roof Bag
Best for: lockable, waterproof roof storage on any car
- Lockable
- Lockable (what this guide is about)
- Capacity
- 20 cu ft
- Shell Type
- 900D PVC tarpaulin
- Water Resistance
- 100% waterproof
- Security
- Lock
- Installation
- Metal ring strap design
The Asinking 20 cu ft Lockable Roof Bag is a soft-sided cargo carrier made from 900D PVC tarpaulin. It offers 20 cubic feet of space and measures 52 x 40 x 12-18.5 inches. This bag is lockable and 100% waterproof, with a metal ring strap design that works on cars with or without a roof rack. It suits anyone who wants a secure, weatherproof, and foldable roof storage solution.
Pros
- Lockable zipper for security
- 100% waterproof 900D PVC tarpaulin with triple-reinforced seams
- 20 cu ft capacity fits a range of luggage
- Fits any vehicle, with or without roof rails or crossbars
- Foldable design stores easily when not in use
Cons
- Soft-sided bag offers less impact protection than a hard shell box
- No dual-side opening; access is limited to one side
- Maximum height of 18.5 inches may limit tall items
Good fit if
- You need a lockable roof carrier that is fully waterproof
- You want a lightweight, foldable option that stores away when not in use
- You have a vehicle without a roof rack and need a strap-mounted carrier
Skip if
- You prefer a hard shell box for maximum security and durability
- You need dual-side opening for easier access from either side of the car
- You require a carrier with a fixed, rigid shape for heavy or bulky items
Verdict: Asinking 20 cu ft Lockable Roof Bag is a practical soft-sided carrier that combines lockable security with full waterproofing and easy installation on any vehicle.
SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo
Best for: budget-minded drivers needing lockable, foldable cargo space
- Lockable
- Lockable (what this guide is about)
- Capacity
- 20 Cu Ft
- Shell Type
- PVC
- Water Resistance
- 100% Waterproof
- Security
- Combination lock
- Installation
- Straps and hooks, anti-slip mat
View on Amazon: SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo
This SR1 Performance rooftop bag gives you 20 cubic feet of weatherproof carrying space in a soft-shell PVC design. It locks with a combination lock and mounts to cars with or without a roof rack using straps, hooks, and an anti-slip mat. The bag suits drivers who want expandable cargo capacity and easy folding storage.
Pros
- 100% waterproof PVC with welded seams
- 20 Cu Ft capacity fits 4-6 suitcases
- Combination lock included
- Fits cars, SUVs, and Jeeps with or without a roof rack
- Folds flat for storage
Cons
- Soft-shell bag offers less impact protection than hard-shell boxes
- Straps and hooks require manual securing rather than a rigid mount
- No hard locking mechanism beyond the zipper's combination lock
Good fit if
- You want a budget-friendly way to add 20 Cu Ft of cargo space
- You need a waterproof bag that can fold down when not in use
- You have a car without a roof rack and need a universal fit
Skip if
- You want a rigid hard-shell roof box for maximum security
- You need a box that can be opened from both sides
- You plan to carry heavy items that require a solid mounting base
Verdict: SR1 Performance 20 Cu Ft Waterproof Roof Bag is a practical, affordable soft-shell option with a combination lock, 20 Cu Ft capacity, and easy folding storage.
Yakima SkyBox NX 16 LG
Best for: premium dual-sided lockable roof storage
- Lockable
- Lockable (what this guide is about)
- Capacity
- 18 cu ft
- Opening
- dual-sided
- Security
- SKS lock
- Dimensions
- 75.5 x 35 x 16 in
- Mount Type
- Roof Mount
The Yakima SkyBox NX 16 is a hard-shell, dual-sided roof box with 18 cubic feet of capacity. It uses an SKS lock system to secure both the gear and the box to your vehicle. This model fits skis and snowboards up to 175 cm and suits outdoor enthusiasts who need reliable, lockable storage.
Pros
- Dual-sided opening for easy loading from either side of the vehicle
- SKS lock secures gear and locks the box to the roof rack
- 18 cu ft capacity holds gear for up to 4 campers
- Flattened interior floor maximizes usable space
Cons
- At 46 pounds, it is heavier than some lockable cargo bags
- No remote or keyless entry listed
- 16-inch height may limit tall items like upright coolers
Good fit if
- You want a premium hard-shell box with dual-sided access for convenience
- You carry skis or snowboards up to 175 cm and need secure lockable storage
- You prefer a brand with a long history in roof-top cargo transport
Skip if
- You need a taller box for bulky gear like large camping chairs
- You want a lightweight, soft-sided cargo bag for occasional use
- You require a box that fits a vehicle with a short roof or low rack clearance
Verdict: Yakima SkyBox NX 16 Rooftop Cargo Carrier offers premium build and dual-sided access with SKS lock security, ideal for active travelers who need reliable, lockable storage.
Eylar SRX-175 Overlanding Cargo Case
Best for: overlanding and camping with a truck bed or roof rack
- Lockable
- Lockable (what this guide is about)
- Capacity
- 175L
- Shell Type
- rotomolded hard case
- Water Resistance
- 100% Waterproof
- Dimensions
- 47.2"L x 18.4"W x 17.9"H
- Vehicle Type
- Truck
The Eylar SRX-175 is a 175-liter rotomolded hard case designed for truck beds and roof racks. It is 100% waterproof with a heavy-duty rubber gasket, and it features four lockable latches (padlock sold separately). This case suits overlanders, campers, and hunters who need rugged, organized, weatherproof gear storage.
Pros
- 175L capacity with internal dimensions of 42.5" x 12.7" x 13.2"
- 100% waterproof seal with heavy-duty rubber gasket
- Four heavy-duty lockable latches compatible with padlocks
- Hands-free gas strut lid stays open automatically
- Includes two removable organizer trays, a divider, and a cargo net
Cons
- Padlocks for the latches are sold separately
- No built-in lock mechanism, only padlock-compatible latches
- At 38.5 lbs, it is heavier than many shell-style roof boxes
Good fit if
- You need a waterproof, lockable cargo case for overlanding, camping, or off-road use
- You want a rotomolded hard case that can double as a cooler with its built-in drain plug
- You prefer a lid that stays propped open for hands-free loading
Skip if
- You want a roof box with an integrated locking system and no need for separate padlocks
- You need a lightweight cargo box for everyday roof-top use
- You require a box designed specifically for car roof racks rather than truck beds
Verdict: Eylar SRX-175 175L Rotomolded Cargo Case is a rugged, waterproof, and lockable cargo case best suited for overlanding and camping, though you must supply your own padlocks.
DNA Motoring 11 cu ft Roof Box
Best for: compact lockable storage on small vehicles
- Lockable
- Lockable (what this guide is about)
- Capacity
- 11 cu. ft.
- Shell Type
- ABS
- Opening
- side
- Load Capacity
- 110 lbs
- Security
- key and lock
This DNA Motoring roof box gives you 11 cubic feet of lockable storage for vehicles with crossbars. It is made from impact-resistant ABS plastic and has a side-opening lid that stays open on its own. With a 110-pound load capacity and no-tool assembly, it suits drivers who want a compact, lightweight box for everyday gear.
Pros
- Side-opening lid with key lock for secure access
- Impact-resistant ABS shell for long-term durability
- No-tool assembly installs quickly on existing crossbars
- Lid stays open on its own for easy loading
Cons
- Only 11 cubic feet – smaller than many boxes on this list
- No dual-side opening; access from one side only
- 110-pound capacity limits heavier gear loads
Good fit if
- You need a compact, lockable box for a small car or limited roof space
- You want a lightweight ABS box that installs without tools
- You prefer a side-opening lid that stays up while you load
Skip if
- You need more than 11 cubic feet of storage capacity
- You want a box that opens from both sides of the vehicle
- You plan to carry heavy items exceeding 110 pounds
Verdict: DNA Motoring 11 cu. ft. Lockable Roof Box is a solid choice if you need a compact, lockable ABS box for light gear and have crossbars already installed.
Relaxcabine 13 cu ft Hard Shell Roof Box
Best for: compact lockable storage with dual-side access
- Lockable
- Lockable (what this guide is about)
- Capacity
- 13 cu ft
- Shell Type
- ABS and PMMA
- Opening
- dual-side
- Load Capacity
- 130 lbs
- Water Resistance
- weather-resistant
This Relaxcabine hard shell cargo box provides 13 cubic feet of lockable storage for your gear. It features a dual-side opening for easy access and a built-in locking system that only releases the key when fully closed. Made from ABS and PMMA, it holds up to 130 pounds and installs tool-free on most crossbars. It is a practical choice for family road trips and camping.
Pros
- Dual-side opening for convenient loading from either side of the vehicle
- Built-in locking system with key removal only when fully closed
- Tool-free installation fits most crossbars
- Weather-resistant ABS and PMMA shell holds up to 130 lbs
Cons
- 13 cu ft capacity is smaller than many other hard shell boxes on this list
- No remote keyless entry or additional security features listed
- At 27.8 pounds, it is heavier than some similarly sized models
Good fit if
- You want a lockable hard shell box with dual-side opening for easier access
- You need a compact rooftop box for weekend trips or camping gear
- You prefer tool-free installation on your existing crossbars
Skip if
- You need more than 13 cubic feet of cargo capacity
- You want a box with remote locking or keyless entry
- You are looking for a lighter-weight cargo carrier
Verdict: Relaxcabine 13 cu ft Hard Shell Cargo Box is a solid lockable option for drivers who want a compact, dual-side opening box with tool-free installation and a secure locking system, though its capacity is smaller than many alternatives.
VEVOR 95L ATV Rear Storage Box with Seat
Best for: ATV and UTV riders needing a lockable seat-storage combo
- Lockable
- Lockable (what this guide is about)
- Capacity
- 95L
- Shell Type
- LLDPE
- Water Resistance
- waterproof, dustproof
- Security
- secure locking system and two keys
- Vehicle Compatibility
- ATV, UTV, Can-Am vehicles
The VEVOR 95L ATV Rear Storage Box is a lockable cargo box designed for ATVs, UTVs, and Can-Am vehicles. It offers 95 liters of capacity, a waterproof LLDPE shell, and a built-in seat with backrest. This unit suits riders who want to combine gear storage with a passenger seat for off-road trips.
Pros
- 95L capacity for helmets, tools, and gear
- Waterproof, dustproof LLDPE shell
- Integrated seat and backrest with foam cushion
- Secure locking system with two keys
- Includes reflective strips for visibility
Cons
- Not designed for car roof mounting
- No dual-side opening; access limited to top
- Heavier than typical roof boxes at 26.5 pounds
Good fit if
- You need a lockable storage box for an ATV or UTV
- You want a cargo box that doubles as a seat
- You prioritize waterproof and dustproof protection
Skip if
- You need a roof-mounted cargo box for a car
- You require more than 95 liters of storage
- You want a box with dual-side access
Verdict: VEVOR 95L ATV Rear Storage Box is a practical lockable cargo box for ATV and UTV owners, offering 95L of waterproof storage and a built-in seat, but it is not intended for car roof use.
Dvasovio 14 Cu Ft Red Roof Box
Best for: Dual-side access and security on wide bars
- Lockable
- Lockable (what this guide is about)
- Capacity
- 14 cu ft
- Shell Type
- ABS and PMMA
- Opening
- Dual-side
- Load Capacity
- 130 lbs
- Water Resistance
- Weatherproof
This hard shell roof cargo carrier offers 14 cubic feet of storage in a vibrant red finish. It measures 62.5 inches long and 32.5 inches wide, supporting up to 130 pounds. The box features dual-side opening for easy access and a lockable security system. It weighs 30.2 pounds and installs on round, square, or aerodynamic roof bars without extra tools.
Pros
- Dual-side opening with passenger side expanding to 15 inches wide
- Lockable security system with keys that remove only when fully sealed
- Supports up to 130 pounds of cargo weight
- Tool-free installation on round, square, and aerodynamic roof bars
Cons
- 14 cubic feet capacity is smaller than many competitors offering 16 to 20 cubic feet
- 32.5-inch width may be too wide for some compact vehicles
- 30.2-pound weight adds significant load to your roof rack
Good fit if
- You need a lockable hard shell for secure storage
- You want dual-side opening for easier loading
- You have wide roof bars and need 130 lb capacity
Skip if
- You require more than 14 cubic feet of space
- You prefer a low-profile design under 13 inches tall
- You have narrow roof bars under 32 inches wide
Verdict: Dvasovio 14 Cu Ft Red Roof Box fits drivers who prioritize easy dual-side access and security over maximum capacity. It is a practical option for those with wide roof bars who do not need the largest available volume.
Pidock 15.5 cu ft Hard Shell Roof Box
Best for: drivers wanting a mid-size, lockable box with easy dual-side loading
- Lockable
- Lockable (what this guide is about)
- Capacity
- 15.5 Cubic Feet
- Shell Type
- ABS and PMMA
- Opening
- dual-sided
- Load Capacity
- 130 lbs
- Water Resistance
- weatherproof
This Pidock cargo box offers 15.5 cubic feet of lockable storage with a 130-pound load limit. The hard ABS/PMMA shell is weatherproof, and the dual-sided opening lets you load from either side of your vehicle. Tool-free installation makes it easy to mount on most roof rack bars. It suits drivers who want a mid-size, secure box without a complicated setup.
Pros
- Dual-sided opening for easy access from either side of the car
- Tool-free installation compatible with round, square, and aerodynamic bars
- Locking system requires key to be removed only when fully closed
- Weatherproof ABS and PMMA hard shell construction
Cons
- 13-inch height may limit carrying taller items like large suitcases
- No remote or keyless locking mechanism listed
Good fit if
- You want a lockable hard shell box that installs without tools
- You need dual-sided access for loading from either side of the car
- You carry gear up to 130 pounds and need 15.5 cubic feet of space
Skip if
- You need a taller box for bulky or upright cargo
- You prefer a keyless or remote locking system
Verdict: Pidock 15.5 cu ft Hard Shell Roof Box is a practical mid-size lockable cargo box with dual-sided access and tool-free installation, ideal for secure, weatherproof storage on most roof racks.
ARKSEN Extra-Wide 42 cu ft Roof Bag
Best for: extra-large soft-sided cargo on a roof rack
- Lockable
- Lockable (what this guide is about)
- Capacity
- 42 cu ft
- Shell Type
- 500D PVC tarpaulin
- Water Resistance
- weatherproof
- Security
- combination lock
- Dimensions
- 83.07 x 48.43 x 18.11 in
The ARKSEN Extra-Wide 42 cu ft Roof Bag is a soft-sided, weatherproof cargo carrier for your roof rack. It measures 83.07 by 48.43 by 18.11 inches and holds 42 cubic feet of gear. A combination lock secures the zippers, and the 500D PVC tarpaulin shell with UV inhibitors helps protect your cargo from the elements.
Pros
- 42 cu ft capacity in an extra-wide footprint
- 500D PVC tarpaulin shell with UV inhibitors
- Combination lock included for zipper security
- Waterproof zippers set under a protective flap
- Comes with anti-slip mat, 12 reinforced straps, and storage bag
Cons
- Soft-sided bag, so no rigid shell protection
- Requires strapping to the roof with the included straps and hooks
Good fit if
- You need maximum cargo volume from a soft-sided carrier
- You want a lockable zipper with a combination lock
- You prefer a weatherproof bag with a built-in anti-slip mat
Skip if
- You want a hard-shell box with rigid walls
- You need a carrier that mounts without roof straps
- You plan to carry items that need crush protection
Verdict: ARKSEN Extra-Wide 42 cu ft Roof Bag is a roomy, lockable soft carrier that suits large loads, but it lacks the rigid shell of a hard-sided box.
JEGS 10 cu ft Rooftop Cargo Carrier
Best for: compact lockable storage on smaller vehicles
- Lockable
- Lockable (what this guide is about)
- Capacity
- 10 cu ft
- Shell Type
- HDPE plastic hard shell
- Opening
- Dual side
- Load Capacity
- 110 lb
- Water Resistance
- Weatherproof
The JEGS 10 cu ft Rooftop Cargo Carrier is a compact hard-shell box made from HDPE plastic. It offers 10 cubic feet of weatherproof storage with a 110-pound load capacity. Dual-side opening and a tool-free installation make it convenient for smaller loads. This box suits you if you need a simple, lockable carrier for shorter trips or smaller vehicles.
Pros
- Dual-side opening for easy access from either side of the car
- Weatherproof seal protects gear from rain and road spray
- No tools required for assembly or installation
- Lockable dual-side locking system plus front latch for security
Cons
- 10 cu ft capacity is smaller than many other roof boxes on this list
- 110 lb load capacity limits heavier gear like camping equipment or multiple suitcases
- No remote or keyless locking system listed
Good fit if
- You drive a smaller car with limited roof space and need a compact box
- You want a weatherproof, lockable carrier that installs without tools
- You prioritize easy loading and unloading from both sides of the vehicle
Skip if
- You need more than 10 cubic feet of cargo space for longer trips
- You plan to carry heavy items exceeding 110 pounds
- You prefer a taller box for bulky items like strollers or large coolers
Verdict: JEGS 10 cu ft Rooftop Cargo Carrier is a no-fuss compact box for light, weatherproof storage. Its dual-side opening and tool-free install make it practical for smaller vehicles and shorter trips.
Pidock 13 Cu Ft Dual-Opening Hard Shell Cargo Box
Best for: Side access and secure locking
- Lockable
- Lockable (what this guide is about)
- Capacity
- 13 cu ft
- Shell Type
- Hard shell, ABS + PMMA
- Opening
- Dual side
- Load Capacity
- 130 lbs
- Water Resistance
- Weather-resistant
View on Amazon: Pidock 13 Cu Ft Dual-Opening Hard Shell Cargo Box
The Pidock 13 Cu Ft box offers weather-resistant storage in a hard ABS + PMMA shell. It features dual-side opening for easy access from either side of the vehicle. The unit supports up to 130 lbs of gear and includes a lockable lid for security. It mounts tool-free to crossbars up to 3 inches wide. This carrier suits drivers needing secure, accessible rooftop storage for luggage or outdoor equipment.
Pros
- Dual-side opening design for convenient access
- Lockable lid with secure engagement points
- Tool-free installation on crossbars up to 3 inches
- 130 lb load capacity for heavy gear
Cons
- 13 cu ft capacity is smaller than many competitors
- No mention of specific waterproof rating or drainage
- 130 lb weight is heavy for single-person handling
Good fit if
- You need side access for parking in tight spaces
- You have crossbars up to 3 inches wide
- You prioritize security with a lockable lid
Skip if
- You require more than 13 cu ft of space
- You have crossbars wider than 3 inches
- You need a lighter unit for easy lifting
Verdict: Pidock 13 Cu Ft Hard Shell Roof Box fits drivers who value side access and secure locking over maximum volume. It is a practical solution for moderate loads on standard crossbars.
ALMULOO 15 cu ft Dual-Side Opening Roof Box
Best for: drivers needing a compact dual-side lockable roof box
- Lockable
- Lockable (what this guide is about)
- Capacity
- 15 cubic feet
- Shell Type
- ABS
- Opening
- Dual-Side
- Water Resistance
- Protects from harsh weather conditions
- Security
- Secure key lock
The ALMULOO 15 Cubic Roof Cargo Box is a lockable hard-shell carrier with dual-side opening for easy access from either side of your vehicle. It offers 15 cubic feet of storage in a compact 53 x 32 x 15 inch footprint. Made from ABS plastic, it protects your gear from rain, dirt, and freezing temperatures. This box suits drivers who need a universal-fit box that works with or without a roof rack.
Pros
- Dual-side opening for convenient access from either side of the vehicle
- Secure key lock included for theft deterrence
- ABS plastic shell for durability and weather protection
- Universal fit works on cars with or without a roof rack
- Compact dimensions (53 x 32 x 15 in) fit smaller vehicles
Cons
- No assembly instructions included in the package
- Only 15 cubic feet capacity, smaller than many other lockable boxes
- No remote or additional security features listed
Good fit if
- You want a lockable roof box that opens from both sides for easier loading
- You need a compact box that fits cars without a roof rack
- You prefer a hard ABS shell over a soft cargo bag
Skip if
- You need more than 15 cubic feet of cargo capacity
- You want a box with included assembly instructions
- You require a taller box for bulky items like skis or large suitcases
Verdict: ALMULOO 15 cu ft Dual-Side Opening Roof Box is a practical lockable choice for drivers who want a compact, dual-side opening hard shell box that fits most vehicles, but its smaller capacity and lack of instructions may limit its appeal for larger loads.
ROAM Adventure 95 L Rugged Cargo Box
Best for: Overlanding and rugged outdoor travel
- Lockable
- Lockable (what this guide is about)
- Capacity
- 95 L
- Water Resistance
- military-grade weatherproof seal
- Security
- lockable latches
- Dimensions
- 48 x 20 x 12 in
- Vehicle Type
- Truck
The ROAM Adventure 95L Rugged Cargo Box is a heavy-duty storage case designed for secure roof mounting. It features a military-grade weatherproof seal and lockable latches to protect gear from rain and tampering. With dimensions of 48 by 20 by 12 inches, it offers 95 liters of capacity. The unit includes gas struts for easy lid access and tie-down channels for internal organization. It weighs 30 pounds and suits travelers needing durable, lockable storage.
Pros
- Military-grade weatherproof seal protects against rain and dust
- Lockable latches secure gear during transport
- Lid lift gas struts allow hands-free opening
- Tie-down channels keep items stable inside
- Mounts via Rugged Mounts, Rigid Mounts, or Cinch Straps
Cons
- 95-liter capacity is smaller than many 16-cubic-foot competitors
- Weighs 30 pounds, adding significant roof load
- No mention of integrated key storage in lid
Good fit if
- You need a rugged case for overlanding or truck bed use
- You require a military-grade seal for wet conditions
- You want lockable latches for security
Skip if
- You need maximum volume for large family trips
- You prefer a lighter cargo box under 20 pounds
- You need a low-profile design under 10 inches high
Verdict: ROAM Adventure 95L Rugged Cargo Box fits overlanders who prioritize durability and weather protection over maximum storage space. It is a solid choice for securing gear in harsh environments.
PM Performotor 13 cu ft Hard Shell Lockable Roof Box
Best for: drivers with cross bars needing a secure 13 cu ft box
- Lockable
- Lockable (what this guide is about)
- Capacity
- 13 cu ft
- Shell Type
- ABS plastic
- Opening
- dual-sided
- Load Capacity
- 110 lbs
- Water Resistance
- weatherproof
View on Amazon: PM Performotor 13 cu ft Hard Shell Lockable Roof Box
The PM Performotor is a 13-cubic-foot hard-shell roof box with a 110-pound load capacity. It opens from both sides and locks with included keys. The ABS plastic shell is weatherproof and mounts to factory or aftermarket cross bars with tool-free installation. It suits drivers who want a straightforward, secure carrier for luggage, camping gear, or skis.
Pros
- Dual-sided opening lets you load from either side of the vehicle
- Key lock and reinforced hard shell protect gear from theft and weather
- 110 lb capacity with 13 cu ft of internal storage
- Tool-free installation with included ABS mounting brackets
- Aerodynamic ABS shell resists UV, rain, and road debris
Cons
- Requires existing factory or aftermarket cross bars
- No listed remote or extra security features beyond the key lock
- 16.3-inch height may limit fit in low garages
Good fit if
- You want a lockable hard shell with dual-sided access
- You need 13 cu ft of storage for luggage, camping gear, or skis
- You already have cross bars and want tool-free mounting
Skip if
- You need more than 13 cu ft of cargo space
- You do not have roof rails or cross bars on your vehicle
- You want a soft-shell bag rather than a rigid box
Verdict: PM Performotor 13 cu ft Hard Shell Lockable Roof Box is a practical, secure choice for drivers who want dual-sided access, key locking, and tool-free mounting in a compact 13-cubic-foot package.
Specifications side by side
| Spec | Asinking 20 cu ft Waterproof Roof Bag | SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo | Yakima SkyBox NX 16 LG | Eylar SRX-175 Overlanding Cargo Case | DNA Motoring 11 cu ft Roof Box | Relaxcabine 13 cu ft Hard Shell Roof Box | VEVOR 95L ATV Rear Storage Box with Seat | Dvasovio 14 Cu Ft Red Roof Box | Pidock 15.5 cu ft Hard Shell Roof Box | ARKSEN Extra-Wide 42 cu ft Roof Bag | JEGS 10 cu ft Rooftop Cargo Carrier | Pidock 13 Cu Ft Dual-Opening Hard Shell Cargo Box | ALMULOO 15 cu ft Dual-Side Opening Roof Box | ROAM Adventure 95 L Rugged Cargo Box | PM Performotor 13 cu ft Hard Shell Lockable Roof Box |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Capacity | 20 cu ft | 20 Cu Ft | 18 cu ft | 175L | 11 cu. ft. | 13 cu ft | 95L | 14 cu ft | 15.5 Cubic Feet | 42 cu ft | 10 cu ft | 13 cu ft | 15 cubic feet | 95 L | 13 cu ft |
| Shell Type | 900D PVC tarpaulin | PVC | not specified | rotomolded hard case | ABS | ABS and PMMA | LLDPE | ABS and PMMA | ABS and PMMA | 500D PVC tarpaulin | HDPE plastic hard shell | Hard shell, ABS + PMMA | ABS | not specified | ABS plastic |
| Opening | not specified | not specified | dual-sided | not specified | side | dual-side | not specified | Dual-side | dual-sided | not specified | Dual side | Dual side | Dual-Side | not specified | dual-sided |
| Load Capacity | not specified | not specified | not specified | not specified | 110 lbs | 130 lbs | not specified | 130 lbs | 130 lbs | not specified | 110 lb | 130 lbs | not specified | not specified | 110 lbs |
| Water Resistance | 100% waterproof | 100% Waterproof | not specified | 100% Waterproof | not specified | weather-resistant | waterproof, dustproof | Weatherproof | weatherproof | weatherproof | Weatherproof | Weather-resistant | Protects from harsh weather conditions | military-grade weatherproof seal | weatherproof |
| Security | Lock | Combination lock | SKS lock | not specified | key and lock | built-in locking system | secure locking system and two keys | Security lock | not specified | combination lock | dual side locking system, front latch | Lockable lid | Secure key lock | lockable latches | key lock |
| Installation | Metal ring strap design | Straps and hooks, anti-slip mat | not specified | not specified | no tool assembly | tool-free | not specified | Tool-free | tool-free | not specified | no tools required | Tool-free | not specified | not specified | tool-free |
| Vehicle Compatibility | With or without roof rack | not specified | not specified | not specified | fits vehicles with cross bars only | most crossbars | ATV, UTV, Can-Am vehicles | Round, square, aerodynamic bars | not specified | not specified | not specified | Crossbars up to 3 in wide | not specified | not specified | not specified |
| Dimensions | 52 x 40 x 12-18.5 in | 44 x 34 x 17 in | 75.5 x 35 x 16 in | 47.2"L x 18.4"W x 17.9"H | 53" L x 34" W x 15" H | 55.91 x 29.53 x 14.96 in | 42.5 x 24.8 x 16.9 inch | 62.5 x 32.5 x 13.2 in | 58.3 x 35.4 x 13 in | 83.07 x 48.43 x 18.11 in | 47.5 x 28 x 12.5 in | 56 x 30 x 13.7 in | 53 x 32 x 15 in | 48 x 20 x 12 in | 56.3 x 36.8 x 16.3 in |
| Recommended Use | not specified | not specified | not specified | not specified | not specified | family trips, camping | not specified | not specified | not specified | not specified | not specified | Luggage, gear, outdoor equipment | not specified | not specified | not specified |
| Vehicle Type | Car | Car, SUV, Jeep | not specified | Truck | Car | not specified | not specified | not specified | not specified | Car | not specified | Car, SUV, Truck | not specified | Truck | Car |
| Size | 20 Cubic Feet | not specified | NX 16 | not specified | 11 cu. ft. | 13 Cu Ft Black | 42.5 x 24.8 x 16.9 inch | Red-1 (62‘’) | 58.3 x 35.4 x 13 in Black | 42 Cu Ft | 10 Cubic Feet - Dual Side | 13 Cu.Ft Black | not specified | 95 L | 13 cu ft（16.25" H） |
| Mount Type | Roof Mount | Roof Mount | Roof Mount | not specified | Roof Mount | not specified | not specified | not specified | not specified | Roof Mount | Roof Mount | Roof Mount | not specified | Roof Mount | Roof Mount |
| Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable | Lockable |
| Includes Bag | not specified | With Bag | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Weight | not specified | 8.8 pounds | 46 pounds | not specified | not specified | 27.8 pounds | 26.5 pounds | 30.2 pounds | 31.5 pounds | 20.8 pounds | 24.5 pounds | 130 pounds | not specified | 30 pounds | not specified |
| Color | Black with Blue | Black | Black | Black | Textured Black | Black | Black | Red | Black | Black | Black | Black | Black | Desert Tan | Textured Black |
| Model | rooftop cargo bag | MP-27200 | 8007369 | SR00011 | PT-ZTL-8166-BK | Black Cargo Box | L7500 | W1715-845 | Hard Shell Roof Cargo Carrier | not specified | 555-90097 | Car Rooftop Cargo Box 13 Cu Ft | AI-6783 | not specified | PM-98528 |
Is a lockable roof box worth it?
A lockable roof box changes how you use your roof storage. It lets you leave gear on the roof during stops without carrying it inside. On this list, locking methods vary. Some boxes use key locks, such as the Yakima SkyBox NX 16 LG and PM Performotor. The SR1 Performance roof bag uses a combination lock. The Eylar cargo case has lockable latches, but you supply your own padlocks. Hard shells and soft bags both offer locking. If you park in public areas or make stops, a lockable box adds practical security. If you never leave the car unattended, it matters less.
Worth it if
- You park in public areas or make stops where the car is unattended.
- You carry gear you cannot easily keep in the cabin.
- You want an integrated key or combination lock rather than supplying your own padlocks.
Skip it if
- You drive directly to your destination and never leave the car unattended.
- You prefer to keep all valuables inside the vehicle.
- You only carry bulky, low-value items and already have secure trunk space.
If you need cooling for your gear, see our list of best box fans ranked by specs.
How we picked lockable roof boxes
We selected products from Amazon listings that explicitly state the feature "Lockable" in their title or feature list. This ensures every box on this list includes a built-in lock or lockable mechanism, so your gear stays secure while you travel.
Products are ordered by availability first, then by each listing's overall rating weighted by the number of ratings, and finally by how many of the guide's criteria the specs meet. Only one size or variant per product family is shown. All details come from published specifications; we do not physically handle products.
How to choose the right lockable roof box
-
Choose your shell type
Hard-shell boxes offer rigid security and dual-side access but are heavier and require crossbars. Soft bags are lighter, cheaper, and fold flat when not in use. If you need maximum protection and easy loading from either side, go with a hard shell like the Yakima SkyBox NX 16 LG. If you prioritize weight and storage convenience, a soft bag like the Asinking 20 cu ft Waterproof Roof Bag works well on any car.
-
Check capacity and dimensions
Capacity is measured in cubic feet or liters. Smaller boxes (10-13 cu ft) suit compact cars and light gear. Mid-size boxes (15-20 cu ft) handle family trips. Extra-large options (42 cu ft) fit bulky items but need a large roof area. Always measure your roof space and compare length, width, and height against the box specs. The ARKSEN Extra-Wide 42 cu ft Roof Bag, for example, is 83.1 inches long.
-
Consider opening style
Many hard-shell boxes open from both sides, letting you load from either side of the car. This is useful when parked next to a wall or another vehicle. Single-side or top-opening bags are lighter but less convenient. If you frequently access gear on the road, a dual-side box like the Dvasovio 14 cu ft Hard Shell Roof Box saves time. Check the product specs for opening type before buying.
-
Verify vehicle and rack compatibility
Not every box fits every car. Some are designed for cars with crossbars, while others work on trucks, SUVs, or ATVs. The VEVOR 95L ATV Rear Storage Box, for instance, is made for ATV/UTV use, not car roofs. Always check the vehicle type and mount type in the specs. If you have a bare roof without crossbars, a soft bag with straps may be your only option.
-
Assess lock security and weather resistance
Lockable boxes use key locks, combination locks, or padlock hasps. Key locks are simple and reliable. Combination locks need no key but can be forgotten. Some boxes, like the Eylar SRX-175 Overlanding Cargo Case, require you to supply your own padlocks. For weather protection, look for waterproof or weather-resistant materials. The Asinking bag is explicitly waterproof, while hard shells are generally weather-resistant but not always fully sealed.
-
Weigh the box and load capacity
A heavier box reduces your available payload. Check the box weight and your roof load limit (usually 100-165 lb). The DNA Motoring 11 cu ft Roof Box has a 110 lb load capacity, while the Pidock 13 cu ft box lists 130 lb. Subtract the box weight from your roof limit to find how much gear you can carry. Lighter soft bags, like the SR1 Performance 20 Cu Ft Roof Bag at 8.8 lb, leave more room for cargo.
-
Match the box to your use case
Think about how you will use the box. For camping and overlanding, a rugged, waterproof case like the Eylar SRX-175 is a good fit. For daily road trips, a mid-size hard shell with dual-side access works well. For occasional use on a small car, a compact box like the JEGS 10 cu ft Rooftop Cargo Carrier is practical. The recommended use field in the specs tells you what each box is designed for.
Frequently asked questions
Do I need crossbars to install a lockable roof box?
Most hard shell boxes require existing crossbars for secure mounting. The DNA Motoring 11 cu ft box notes it is for use when crossbars are already installed. Soft-sided bags like the Asinking 20 cu ft model often attach directly to roof rails or crossbars using straps. Always check the mount type in the specifications to confirm compatibility with your vehicle setup.
What is the difference between a roof box and a roof bag?
A roof box is a rigid hard shell, usually made of ABS plastic or rotomolded material, offering superior weather protection and security. The Yakima SkyBox NX 16 LG is a premium hard shell example. A roof bag is a soft-sided, flexible carrier made from waterproof fabric. The ARKSEN 42 cu ft bag offers large capacity but lacks the rigid protection of a hard shell.
How much weight can a lockable roof box hold?
Load capacity varies by model. The DNA Motoring 11 cu ft box supports up to 110 pounds. The JEGS 10 cu ft carrier also has a 110 lb limit. Hard shells generally distribute weight evenly across your crossbars. Always ensure your vehicle’s roof rack system supports the combined weight of the box and your cargo to avoid damage or safety issues.
Can I access the contents of a roof box from both sides?
Many hard shell boxes feature dual-side opening for convenient access. The Yakima SkyBox NX 16 LG allows access from both sides. The Pidock 15.5 cu ft box also offers dual-sided loading. This feature is helpful when parked in tight spaces. Soft bags typically open from the top only, so you need clear space above your vehicle to load gear.
Are lockable roof boxes waterproof?
Most lockable carriers are designed to be waterproof or water-resistant. The Asinking 20 cu ft bag is explicitly described as waterproof. The Eylar SRX-175 cargo case is also noted as waterproof for overlanding. Hard shells generally provide better protection against heavy rain due to their sealed lids. Always check the product description for specific waterproof ratings or claims.
Do I need to buy separate locks for a lockable roof box?
Some boxes include built-in locking mechanisms, while others require you to supply your own. The SR1 Performance 20 Cu Ft bag includes a combination lock. The Yakima SkyBox NX 16 LG uses SKS lock security. The Eylar SRX-175 case states you must supply your own padlocks. Always verify the locking mechanism details in the specifications before purchasing.