Looking Beyond the PM Performotor 13 cu ft Hard? 6 Alternatives Worth a Look

How these alternatives compare

DNA Motoring 13 cu ft Hard Shell Roof Box

The DNA Motoring 13 cu ft hard shell roof box matches the PM Performotor in capacity and dimensions. It shares the same 56.3 x 36.8 x 16.3 inch footprint and 13 cubic feet volume. Both models offer dual-side access and a 110 lb load capacity. The DNA Motoring unit uses a textured black finish similar to the PM Performotor. You get identical locking security and hard shell protection against weather. Choose this alternative if you prefer the DNA Motoring brand or find a better fit for your specific roof rack crossbars. The performance specs remain consistent with the original choice.

Pidock 13 cu ft Hard Shell Roof Box

The Pidock 13 cu ft hard shell roof box offers a different physical profile. It is narrower at 30.3 inches wide compared to the PM Performotor's 36.8 inches. The height is also lower at 13.8 inches versus 16.3 inches. Both provide 13 cubic feet of storage and dual-side opening. The Pidock model is available in white, offering a distinct aesthetic choice. It maintains the lockable hard shell design for secure gear storage. Select this option if your vehicle has width restrictions or if you prefer a lower profile for better aerodynamics. The weight specification is listed as 130 pounds for the Pidock, which differs from the PM Performotor's construction.

FinerFurnis 12.4 Cu Ft Hard Shell Roof Box

The FinerFurnis 12.4 cu ft hard shell roof box reduces volume slightly compared to the 13 cu ft PM Performotor. It features a narrower width of 30.9 inches and a lower height of 14.6 inches. The length is slightly longer at 57.5 inches. Both units provide dual-side access and lockable hard shell security. The FinerFurnis model weighs 32.2 pounds, which is significantly lighter than typical hard shell carriers. This weight reduction may ease installation and reduce roof load stress. Choose this alternative if you need a more compact footprint or prioritize a lighter carrier while still retaining side access and weather protection for your cargo.

STMHOM 14 cu ft Hard Shell Roof Box

The STMHOM 14 cu ft hard shell roof box increases capacity to 14 cubic feet, offering more storage space than the 13 cu ft PM Performotor. It features a much longer length of 66.9 inches and a narrower width of 31.1 inches. The height is lower at 13 inches, which may improve aerodynamics. Both models provide dual-side opening and lockable hard shell protection. The STMHOM unit weighs 45.6 pounds. Select this alternative if you require additional cargo volume for larger trips or family travel. The extended length allows for longer items, though it requires checking your vehicle's roof length compatibility before purchase.

Asinking 20 cu ft Waterproof Roof Bag

The Asinking 20 cu ft waterproof roof bag differs significantly as a soft shell option. It provides 20 cubic feet of capacity, which is much larger than the 13 cu ft hard shell PM Performotor. The dimensions are 52 x 40 x 18.5 inches. This model is lockable and designed for vehicles without roof racks, using straps for mounting. It lacks the rigid protection and aerodynamic shape of the hard shell PM Performotor. Choose this alternative if you need maximum storage volume or do not have existing crossbars. The soft shell material offers flexibility but less impact resistance than the ABS plastic hard shell.

SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo

The SR1 Performance 20 cu ft roof bag is a soft shell carrier designed for Jeep owners. It offers 20 cubic feet of capacity, exceeding the 13 cu ft PM Performotor. The dimensions are 44 x 34 x 17 inches, making it shorter and narrower than the hard shell box. It includes a bag and is lockable. This model is significantly lighter at 8.8 pounds compared to the hard shell PM Performotor. It is ideal for Jeep owners who prioritize easy storage and high capacity over rigid protection. Choose this alternative if you need a lightweight, flexible solution that fits various roof configurations without the bulk of a hard shell.

Quick picks

Our 7 picks

1 Best overall

PM Performotor 13 cu ft Hard Shell Lockable Roof Box

Best for: Dual-sided loading and weather protection

Capacity

13 cu ft

Shell Type

Hard shell (ABS)

Opening

Dual-side

Load Capacity

110 lb

Water Resistance

Weatherproof

Security

Security keys

View on Amazon: PM Performotor 13 cu ft Hard Shell Lockable Roof Box Affiliate link

This 13 cubic foot hard shell roof box offers 110 lbs of load capacity. It features dual-sided opening for easy loading from either side of the vehicle. The ABS plastic shell is weatherproof and includes a key lock for security. You get a textured black finish with aerodynamic shaping. It fits most SUVs, trucks, and sedans with cross bars.

Pros

• 13 cubic feet of internal storage
• Dual-sided opening design
• 110 lbs max load capacity
• Key lock security system
• Tool-free installation

Cons

• 110 lbs capacity is lower than some soft bag alternatives
• No mention of aerodynamic drag reduction metrics
• Fixed textured black color only

Good fit if

• You need dual-sided access for loading
• You want a hard shell for weather protection
• You have cross bars on your vehicle

Skip if

• You require more than 110 lbs of capacity
• You need a soft-sided bag for flexibility
• You lack roof cross bars

Verdict: PM Performotor 13 cu ft Hard Shell provides secure, weatherproof storage with convenient dual-sided access. It fits drivers who prioritize hard shell durability and easy loading over maximum weight capacity.

2 Best premium

DNA Motoring 13 cu ft Hard Shell Roof Box

Best for: standard roof racks needing dual-side access

Capacity

13 Cubic Feet

Shell Type

Hard Shell, ABS

Opening

Double side

Load Capacity

110 lbs

Water Resistance

Weatherproof

Security

Security locking system with keys

View on Amazon: DNA Motoring 13 cu ft Hard Shell Roof Box Affiliate link

This DNA Motoring hard shell carrier offers 13 cubic feet of storage and supports up to 110 lbs. It features a textured ABS construction for weather protection and double-side opening for easier loading. The unit requires crossbars and includes a security lock. You get a 56.3-inch length and 36.8-inch width. It suits those needing reliable, tool-free installation for standard roof racks.

Pros

• 13 cubic feet internal capacity
• 110 lbs max load capacity
• Double-side opening mechanism
• Tool-free installation on crossbars
• Security locking system included

Cons

• Requires existing crossbars for mounting
• Limited to 110 lbs weight limit
• No mention of aerodynamic design

Good fit if

• You need double-side access for loading
• You have crossbars installed on your vehicle
• You prefer tool-free setup

Skip if

• You lack crossbars for mounting
• You need to carry over 110 lbs
• You require aerodynamic styling

Verdict: DNA Motoring 13 Cu Ft Hard Shell provides solid storage and easy access for standard roof racks. It fits buyers who prioritize straightforward installation and dual-side loading over aerodynamic efficiency.

3 Also great

Pidock 13 cu ft Hard Shell Roof Box

Best for: Dual-side access and tool-free mounting

Capacity

13 cu ft

Shell Type

ABS and PMMA

Opening

Dual side

Load Capacity

130 lb

Installation

Tool-free

Dimensions

55.91 x 29.53 x 14.96 in

View on Amazon: Pidock 13 cu ft Hard Shell Roof Box Affiliate link

This Pidock roof box offers 13 cubic feet of storage with a 130 lb load capacity. It features a hard shell made from ABS and PMMA materials. The dual-side opening design allows access from either side of the vehicle. Tool-free installation works with crossbars up to 3 inches wide. It suits drivers needing secure, accessible cargo space for cars, SUVs, or trucks.

Pros

• 13 cubic feet capacity holds up to 130 lbs
• Dual-side opening for easy access from either side
• Tool-free installation fits round, square, and aerodynamic bars
• Hard shell built from impact-resistant ABS and PMMA

Cons

• Weighs 130 pounds, which is heavy for one person
• No mention of aerodynamic drag reduction features
• Only available in white or black color options

Good fit if

• You need to load gear from the passenger side
• You have crossbars up to 3 inches wide
• You want a hard shell for weather protection

Skip if

• You require a capacity larger than 13 cubic feet
• You need a lighter box for solo installation
• You want a color other than white or black

Verdict: Pidock 13 Cu Ft Hard Shell provides secure dual-side access for drivers who value easy loading over weight savings. It fits vehicles with standard crossbars and needs reliable hard-shell protection for gear.

4 Also great

FinerFurnis 12.4 Cu Ft Hard Shell Roof Box

Best for: Side access and weather protection

Capacity

12.4 Cu.Ft

Shell Type

ABS

Opening

dual-side

Load Capacity

165 lbs

Water Resistance

waterproof

Security

locking system with two keys

View on Amazon: FinerFurnis 12.4 Cu Ft Hard Shell Roof Box Affiliate link

This FinerFurnis hard shell cargo box offers 12.4 cubic feet of storage with a 165-pound load capacity. It features dual-side opening for access from either side of your vehicle. The ABS shell is waterproof and lockable, securing your gear against weather and theft. It mounts tool-free on square, round, or aero crossbars. Its aerodynamic design helps reduce wind noise during travel.

Pros

• Dual-side opening for convenient access
• 165 lbs load capacity
• Waterproof ABS construction
• Tool-free installation

Cons

• 12.4 Cu Ft capacity is smaller than the 13+ Cu Ft options on this list
• 32.2 lbs weight adds bulk to roof load
• No mention of integrated mounting rails for crossbars

Good fit if

• You need secure, weatherproof storage for weekend trips
• You want access to the box from the passenger side
• Your vehicle has standard crossbars for tool-free mounting

Skip if

• You require more than 12.4 cubic feet of space
• You prefer a cargo bag over a hard shell
• You need a box that fits on factory roof rails without crossbars

Verdict: FinerFurnis 12.4 Cu Ft Hard Shell Roof Box is a practical option for drivers who prioritize side access and weather protection over maximum volume. It suits those with standard crossbars who need a secure, lockable storage solution for moderate loads.

5 Best 14 cubic feet

STMHOM 14 cu ft Hard Shell Roof Box

Best for: families needing extra cargo space

Capacity

14 cu ft

Shell Type

Hard shell ABS

Opening

Dual side

Load Capacity

135 lb

Security

Lockable

Vehicle Compatibility

Square, round, and aerodynamic crossbars

View on Amazon: STMHOM 14 cu ft Hard Shell Roof Box Affiliate link

This hard shell roof cargo carrier offers 14 cubic feet of storage with a 135 lb load capacity. Its dual-side opening design allows access from either side of the vehicle. The ABS shell is lockable and fits square, round, or aerodynamic crossbars. Measuring 66.9 inches long, it suits families needing extra space for travel or camping gear.

Pros

• 14 cubic feet capacity
• Dual side opening
• Lockable hard shell
• Fits multiple crossbar types

Cons

• Heavier at 45.6 pounds
• Larger footprint than 13 cu ft models
• No mention of integrated light strips

Good fit if

• You need more than 13 cubic feet of space
• You want access from both sides of the car
• You carry bulky camping gear

Skip if

• You prefer a lighter carrier under 40 pounds
• You have a compact car with low weight limits
• You only need minimal extra storage

Verdict: STMHOM 14 cu ft Hard Shell Roof Box fits those who prioritize capacity and side access over a lighter, smaller footprint.

6 Best budget

Asinking 20 cu ft Waterproof Roof Bag

Best for: high-capacity storage on vehicles without racks

Capacity

20 cu ft

Shell Type

900D PVC tarpaulin

Water Resistance

100% waterproof

Security

Lock

Installation

Metal ring strap design

Vehicle Compatibility

With or without roof rack

View on Amazon: Asinking 20 cu ft Waterproof Roof Bag Affiliate link

This soft-sided carrier offers 20 cubic feet of storage in a 52 x 40 x 12-18.5 inch footprint. It uses 900D PVC tarpaulin with triple-reinforced seams for waterproof protection. The design fits vehicles with or without roof racks, using metal ring straps for mounting. It includes a lock for security and protects your car's finish with thick door hook pads. You get a foldable bag that optimizes fuel efficiency with its low-profile shape.

Pros

• 20 cubic feet capacity for large loads
• 100% waterproof 900D PVC tarpaulin construction
• Fits vehicles with or without roof racks
• Lockable for security
• Foldable design for easy storage

Cons

• Soft shell offers less aerodynamic efficiency than hard boxes
• No hard shell protection for fragile items
• Manual installation requires securing multiple straps

Good fit if

• You need maximum cargo volume for road trips
• Your vehicle lacks a roof rack system
• You want a waterproof solution for wet weather

Skip if

• You require rigid protection for fragile cargo
• You prefer quick one-touch locking mechanisms
• You prioritize aerodynamic fuel savings over capacity

Verdict: Asinking 20 cu ft Waterproof Roof Cargo Bag provides substantial storage for those without roof racks. It suits travelers who prioritize waterproofing and volume over aerodynamic efficiency.

7 Best jeep

SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo

Best for: Jeep owners needing high capacity soft-shell storage

Capacity

20 Cu Ft

Shell Type

PVC

Water Resistance

100% Waterproof

Security

Combination lock

Installation

Straps and hooks, anti-slip mat

Dimensions

44 x 34 x 17 in

View on Amazon: SR1 Performance 20 Cu Ft Roof Bag with Jeep Logo Affiliate link

This is a 20 cubic foot soft-shell rooftop cargo bag made from PVC. It measures 44 x 34 x 17 inches and weighs 8.8 pounds. The bag is 100% waterproof with welded seams and includes a combination lock. It uses straps and hooks for installation. You should choose this if you need extra space for a Jeep or SUV without installing a hard case.

Pros

• 20 cubic foot capacity holds 4–6 suitcases
• 100% waterproof PVC construction with welded seams
• Includes combination lock for security
• Lightweight at 8.8 pounds for easy handling
• Fits vehicles with or without existing roof racks

Cons

• Soft shell design offers less impact protection than hard cases
• No rigid structure to prevent sagging under heavy loads
• Strap-based installation may be less stable than clamp systems

Good fit if

• You own a Jeep and want a dedicated logo option
• You need maximum cargo volume for large trips
• You prefer a lightweight carrier that folds for storage

Skip if

• You require a rigid hard shell for heavy gear
• You want a carrier with aerodynamic hard-shell design
• You need a permanent mount that does not use straps

Verdict: SR1 Performance 20 Cu Ft Soft Shell provides high capacity and waterproofing for Jeep owners who prioritize space over rigid protection. It suits those who value easy storage and universal fitment.

Specifications side by side

Frequently asked questions

See also

• suncast 22 cu ft alternatives
• bodacious 7 0 cu ft chest alternatives