6 Best Alternatives to the OMAC Rooftop Cargo Carrier Hard (2026)
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The OMAC 8 cu ft Hard Shell Cargo Box offers dual-side access and waterproof protection in a compact footprint. If you are comparing omac rooftop cargo carrier hard alternatives, you likely need different capacity or load limits. This guide lists 6 options that share key specifications like hard shell construction and roof mount compatibility.
The original model measures 48.3 inches in length and holds 8 cubic feet. It supports up to 110 lbs of gear. Some drivers prefer larger volumes for extended trips. Others need higher weight capacities for heavy equipment. The selected alternatives provide 11 to 16 cubic feet of space. They also vary in shell material and opening mechanisms. You can choose based on your specific roof rack dimensions and storage needs. Each option retains the practical hard shell design while adjusting capacity and access features to suit different driving habits.
How these alternatives compare to OMAC
PM Performotor 11 cu ft Hard Shell Cargo Box
The PM Performotor 11 cu ft Hard Shell Cargo Box offers 3 cubic feet more volume than the OMAC. It measures 53 inches long and 34 inches wide, making it larger for moderate loads. You give up dual-side access, as this model relies on single-side entry. The shell is textured black ABS, differing from the OMAC’s matte finish. It supports a 110 lb load, matching the OMAC’s limit. This option suits drivers who prioritize extra space over side access convenience. It is a secure, durable choice for weekend trips where moderate volume is sufficient and dual-side opening is not a priority.
Runave 14 Cu Ft Dual-Side Hard Shell
The Runave 14 Cu Ft Dual-Side Hard Shell provides 6 cubic feet more capacity than the OMAC. It features dual-side opening, matching the OMAC’s convenience. However, it weighs 30.2 pounds, significantly heavier than the OMAC’s 20.2 pounds. The load capacity is 150 lb, exceeding the OMAC’s 110 lb limit. It measures 62 inches long, requiring more roof space. This model suits drivers who need side access and higher load limits. It offers solid storage but carries a heavier build. Choose this if you have standard roof racks and need more volume without sacrificing dual-side access.
Goplus 14 cu ft Dual-Side Opening Roof Box
The Goplus 14 cu ft Dual-Side Opening Roof Box doubles the OMAC’s capacity to 14 cubic feet. It retains dual-side access for easy loading from either side. The load capacity is 165 lb, substantially higher than the OMAC’s 110 lb limit. It weighs 25 pounds, slightly more than the OMAC. Dimensions are 63 inches long and 31 inches wide, requiring compatible crossbars. This model is ideal for road trips needing significant storage and side access. It provides a premium hard shell experience. Pick this alternative if you prioritize capacity and load strength over the OMAC’s compact size.
Ausum Motor 14 cu ft Dual-Side Box
The Ausum Motor 14 cu ft Dual-Side Box matches the OMAC’s 110 lb load capacity while offering 6 cubic feet more space. It features dual-side opening, identical to the OMAC’s access style. However, it weighs 45 pounds, more than double the OMAC’s weight. The glossy black finish differs from the OMAC’s matte look. It requires compatible crossbar spacing for installation. This option suits owners who want dual-side access and larger volume but can handle the extra weight. It is a solid choice for those prioritizing easy access and capacity over minimal weight.
Runave 15.5 cu ft Dual-Side Roof Box
The Runave 15.5 cu ft Dual-Side Roof Box offers 7.5 cubic feet more capacity than the OMAC. It includes dual-side access, matching the OMAC’s convenience. The load capacity is 150 lb, exceeding the OMAC’s 110 lb limit. It is white, differing from the OMAC’s matte black. Dimensions are 58.3 inches long and 35.4 inches wide. This model suits families needing ample space and side access. However, its weight limit restricts heavy gear loads compared to some peers. Choose this if you prioritize capacity and dual-side access over the OMAC’s smaller footprint.
Pidock 16 cu ft Hard Shell Roof Box
The Pidock 16 cu ft Hard Shell Roof Box provides 8 cubic feet more volume than the OMAC. It features dual-side access for easy loading. The capacity is the highest on this list, suitable for heavy loads. It weighs 130 pounds, significantly heavier than the OMAC. The white finish differs from the OMAC’s matte black. This model fits drivers who prioritize maximum capacity and ease of loading. It is less ideal for those needing minimal weight. Pick this alternative if you need high volume and dual-side access, accepting the substantial weight increase for greater storage space.
Quick picks
Our 7 picks
OMAC 8 cu ft Hard Shell Cargo Box
Best for: compact storage and dual-side access
- Capacity
- 8 Cubic Feet
- Shell Type
- PS UV Protected
- Opening
- Dual-Side Opening
- Load Capacity
- 110 Lbs
- Water Resistance
- Waterproof
- Security
- Security Keys
This OMAC cargo box offers 8 cubic feet of storage in a compact 48.3-inch hard shell. It features dual-side opening for access from either side of your vehicle. The PS UV protected material is waterproof and includes steel mounting hardware. Weighing 20.2 lbs, it supports a maximum load of 110 lbs. It arrives pre-assembled for quick installation on most roof racks.
Pros
- Dual-side opening for convenient access
- Pre-assembled for easy installation
- Waterproof and UV protected PS shell
- Includes steel T-bolts and locks
Cons
- 8 cubic feet capacity is smaller than competitors
- 110 lbs load limit is modest
- No remote or app control listed
Good fit if
- You need compact storage for short trips
- You want dual-side access for tight parking
- You prefer a lightweight, pre-assembled unit
Skip if
- You require high-volume luggage space
- You plan to carry heavy gear loads
- You need smart connectivity features
Verdict: OMAC 8 cu ft Hard Shell Roof Box is a compact, pre-assembled option for drivers who prioritize dual-side access and waterproof protection over maximum capacity. It suits those with lighter packing needs and standard roof racks.
PM Performotor 11 cu ft Hard Shell Cargo Box
Best for: Moderate loads with single-side access
- Capacity
- 11 cu ft
- Shell Type
- Hard shell, ABS plastic
- Load Capacity
- 110 lbs
- Water Resistance
- Weatherproof
- Security
- Key and lock
- Installation
- Tool-free or simple
View on Amazon: PM Performotor 11 cu ft Hard Shell Cargo Box
This PM Performotor hard shell carrier offers 11 cubic feet of storage and supports up to 110 pounds. It measures 53 inches long and 34 inches wide, fitting most vehicles with cross bars. The ABS plastic construction is impact-resistant and includes a key lock for security. You get tool-free installation and an aerodynamic design that reduces wind noise. It is a solid option for moderate loads.
Pros
- 11 cubic feet of internal storage
- 110-pound maximum load capacity
- Key and lock security system
- Tool-free installation hardware included
- Impact-resistant ABS plastic shell
Cons
- 110-pound capacity is lower than larger 14-16 cubic foot competitors
- Single-side opening limits access to 14 inches wide
- No mention of dual-side opening mechanism
Good fit if
- You need a hard shell for moderate gear loads
- You have roof cross bars for mounting
- You want a secure, weather-resistant box
Skip if
- You require dual-side opening for easy access
- You need to carry more than 110 pounds
- You need over 11 cubic feet of space
Verdict: PM Performotor 11 Cu Ft Hard Shell is a secure, durable option for drivers who do not need dual-side access or heavy loads. It fits well for weekend trips where moderate volume is sufficient.
Runave 14 Cu Ft Dual-Side Hard Shell
Best for: Side access on standard roof racks
- Capacity
- 14 cu ft
- Shell Type
- ABS and PMMA
- Opening
- dual-sided
- Load Capacity
- 130 lb
- Security
- 2 keys and 2 straps
- Installation
- simple, no additional tools required
The Runave 14 cubic feet rooftop cargo box features a dual-side opening design for flexible access. It measures 62.5 x 32.5 x 13 inches and supports a load capacity of 130 pounds. The hard shell is made from ABS and PMMA materials for durability. It includes two keys and two straps for security. This carrier fits vehicles with roof racks between 17.32 and 38.58 inches wide.
Pros
- Dual-side opening for easy access from either side
- 14 cubic feet of storage space
- ABS and PMMA hard shell construction
- Includes two keys and two straps
Cons
- 130 lb load capacity is lower than the 150 lb spec listed in attributes
- Weight of 30.2 pounds is heavier than some competitors
- No mention of aerodynamic noise reduction features in key specs
Good fit if
- You need to access cargo from the passenger side
- You have a roof rack width between 17.32 and 38.58 inches
- You want a hard shell made of ABS and PMMA
Skip if
- You require a load capacity over 130 pounds
- You prefer a lighter carrier under 30 pounds
- Your roof rack crossbars are wider than 3 inches
Verdict: The Runave 14 Cu Ft Dual-Side Hard Shell suits drivers who need side access and have standard roof racks. It offers solid storage but carries a heavier build than some alternatives.
Goplus 14 cu ft Dual-Side Opening Roof Box
Best for: Dual-side access and 14 cubic feet
- Capacity
- 14 Cubic Feet
- Shell Type
- ABS and PC
- Opening
- Dual-side
- Load Capacity
- 165 lbs
- Water Resistance
- Waterproof
- Security
- double-lock design, super latch security
The Goplus 14 cubic foot roof box offers a dual-side opening design for convenient access from either side of your vehicle. Constructed from ABS and PC materials, it provides waterproof protection for your gear. With a 165 lb load capacity and dimensions of 63 x 31 x 15 inches, it fits vehicles with crossbars between 17 and 22.8 inches wide. This hard shell carrier is ideal for road trips where you need secure, weather-resistant storage.
Pros
- Dual-side opening for easy access
- 14 cubic feet of cargo space
- Waterproof ABS and PC shell
- 165 lb load capacity
- Fits crossbars up to 3.1 inches wide
Cons
- 14 cubic feet is smaller than the 16 cubic feet option on this list
- Weighs 25 pounds, adding to roof load
- No mention of integrated lock core in data
Good fit if
- You need dual-side access for tight parking spots
- You have a vehicle with wide crossbars
- You want a waterproof hard shell for gear
Skip if
- You need more than 14 cubic feet of space
- Your crossbars are wider than 3.1 inches
- You prefer a lighter carrier under 20 pounds
Verdict: Goplus 14 Cu Ft Dual-Side Hard Shell Roof Box fits drivers who need dual-side access and a 14 cubic foot capacity for road trips.
Ausum Motor 14 cu ft Dual-Side Box
Best for: Dual-side access with compatible crossbar spacing
- Capacity
- 14 cubic feet
- Shell Type
- Hard shell
- Opening
- Dual side
- Load Capacity
- 110 lbs
- Water Resistance
- Weather-tight seal
- Installation
- No special tools required
This Ausum Motor cargo box offers 14 cubic feet of hard shell storage with a glossy black finish. It features dual-side opening for access from either side of your vehicle. The unit weighs 45 pounds and supports a load capacity of 110 lbs. It includes a weather-tight seal and requires no special tools for installation. It fits vehicles with an inter-crossbar distance between 24.0 and 29.1 inches.
Pros
- 14 cubic feet of hard shell storage capacity
- Dual-side opening for convenient access
- Central locking system with secure key removal
- Weather-tight seal protects contents from rain
- No special tools required for installation
Cons
- 45-pound weight adds significant roof load
- 110 lb load capacity is standard for this class
- Strict inter-crossbar distance requirement of 24.0-29.1 inches
Good fit if
- You need dual-side access for tight parking spots
- Your roof rack crossbars are spaced between 24 and 29 inches
- You want a hard shell for better weather protection
Skip if
- Your crossbar spacing falls outside the 24.0-29.1 inch range
- You require a capacity larger than 14 cubic feet
- You need a lighter unit for easier handling
Verdict: Ausum Motor 14 Cu Ft Hard Shell provides secure, weather-resistant storage with convenient dual-side access. It is a solid option for owners with compatible crossbar spacing who prioritize easy access over maximum capacity.
Runave 15.5 cu ft Dual-Side Roof Box
Best for: dual-side access needs
- Capacity
- 15.5 Cubic Feet
- Shell Type
- ABS and PMMA
- Opening
- dual-sided
- Load Capacity
- 150 lbs
- Water Resistance
- waterproof
- Security
- 2 keys and 2 straps
This Runave rooftop cargo box offers 15.5 cubic feet of storage with a 150 lb load capacity. Its hard shell uses ABS and PMMA materials for waterproof and UV resistance. The dual-side opening design allows access from either side, secured by two keys and straps. It fits crossbars under 3 inches wide. This carrier suits drivers needing extra space and easy access for road trips.
Pros
- 15.5 cubic feet of storage volume
- Dual-side opening for flexible access
- 150 lb maximum load capacity
- Waterproof and UV-resistant ABS/PMMA shell
Cons
- 150 lb load limit is lower than many competitors
- No mention of aerodynamic fuel-efficiency ratings
- Requires existing roof rack for installation
Good fit if
- You need dual-side access for loading
- You have a roof rack with narrow crossbars
- You want a waterproof hard shell for gear
Skip if
- You require a load capacity over 150 lbs
- Your vehicle lacks a roof rack system
- You prefer a single-side opening mechanism
Verdict: Runave 15.5 Cu Ft Dual-Side Hard Shell provides ample space and convenient access for families, though its weight limit restricts heavy gear loads.
Pidock 16 cu ft Hard Shell Roof Box
Best for: Dual-side access and high capacity
- Capacity
- 15.5 cu ft
- Shell Type
- ABS and PMMA plastic
- Opening
- Dual-side
- Load Capacity
- 130 lb
- Water Resistance
- Water resistant
- Installation
- Tool-free
This Pidock roof box offers 15.5 cubic feet of storage in a 58.3-inch hard shell. It features dual-side opening for easy access and a 130 lb load capacity. The ABS and PMMA construction is water resistant and UV protected. It mounts tool-free to most crossbars. The streamlined design reduces wind drag. It suits you if you need large, secure cargo space for road trips or camping gear without losing interior room.
Pros
- 15.5 cubic feet capacity
- Dual-side opening design
- 130 lb load capacity
- Tool-free installation
Cons
- Water resistant, not waterproof
- 130 lb weight is heavy
- No mention of integrated locks
Good fit if
- You need dual-side access for loading
- You have large items to transport
- You want tool-free setup
Skip if
- You require full waterproofing
- You prefer a lighter carrier
- You need integrated locking mechanisms
Verdict: Pidock 16 Cu.Ft Hard Shell Roof Box provides ample space and dual access for heavy loads. It fits you if you prioritize capacity and ease of loading over minimal weight.
Specifications side by side
| Spec | OMAC 8 cu ft Hard Shell Cargo Box | PM Performotor 11 cu ft Hard Shell Cargo Box | Runave 14 Cu Ft Dual-Side Hard Shell | Goplus 14 cu ft Dual-Side Opening Roof Box | Ausum Motor 14 cu ft Dual-Side Box | Runave 15.5 cu ft Dual-Side Roof Box | Pidock 16 cu ft Hard Shell Roof Box |
|---|---|---|---|---|---|---|---|
| Capacity | 8 Cubic Feet | 11 cu ft | 14 cu ft | 14 Cubic Feet | 14 cubic feet | 15.5 Cubic Feet | 15.5 cu ft |
| Shell Type | PS UV Protected | Hard shell, ABS plastic | ABS and PMMA | ABS and PC | Hard shell | ABS and PMMA | ABS and PMMA plastic |
| Opening | Dual-Side Opening | not specified | dual-sided | Dual-side | Dual side | dual-sided | Dual-side |
| Load Capacity | 110 Lbs | 110 lbs | 130 lb | 165 lbs | 110 lbs | 150 lbs | 130 lb |
| Water Resistance | Waterproof | Weatherproof | not specified | Waterproof | Weather-tight seal | waterproof | Water resistant |
| Security | Security Keys | Key and lock | 2 keys and 2 straps | double-lock design, super latch security | not specified | 2 keys and 2 straps | not specified |
| Installation | pre-assembled | Tool-free or simple | simple, no additional tools required | 4 quick connect anchors | No special tools required | no additional tools required | Tool-free |
| Vehicle Compatibility | all vehicles | Cross bars (roof rails) | not specified | not specified | Inter-crossbar distance 24.0-29.1 in | not specified | not specified |
| Dimensions | 48.3 Inch x 26.1 Inch x 10.6 Inch | 53 x 34 x 15 in | 62.5 x 32.5 x 13 in | 63 x 31 x 15 in | not specified | 58.3 x 35.4 x 13 in | 58.3 x 35.4 x 13 in |
| Recommended Use | not specified | Suitcases, camping gear, skis | not specified | not specified | not specified | not specified | not specified |
| Vehicle Type | Car | Car | Car | Car | Car | Car | Car |
| Size | 8 Cubic Feet | 11 Cubic Feet-B | 14 Cubic Feet | not specified | 14 Cubic Feet | 15.5 Cubic Feet | 16 Cu.Ft White |
| Mount Type | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount |
| Weight | not specified | not specified | 30.2 pounds | 25 pounds | 45 pounds | not specified | 130 pounds |
| Color | Matt Black | Textured Black | BLACK | Black | Glossy Black | WHITE | White |
| Model | 96G3300B | PM-64342 | BLACK | not specified | Glossy Black | WHITE | Car Rooftop Cargo Box |
Frequently asked questions
Which alternative offers the highest load capacity?
The Goplus 14 cu ft Dual-Side Opening Roof Box supports up to 165 pounds. This is the highest weight limit among the listed options. It measures 63 inches long and 31 inches wide. You should ensure your roof rack can handle this load. The Runave 14 Cu Ft and 15.5 cu ft models both support 150 pounds.
What is the largest capacity available in this list?
The Pidock 16 cu ft Hard Shell Roof Box provides the most storage space. It holds 16 cubic feet of gear. The Runave 15.5 cu ft Dual-Side Roof Box is the next largest option. Both models offer dual-side access for easier loading. Choose the Pidock if you need maximum volume for long trips.
Do all these boxes open from both sides?
No. The PM Performotor 11 cu ft Hard Shell Cargo Box features single-side access only. All other listed models, including the OMAC 8 cu ft and the Runave series, offer dual-side opening. This allows you to load gear from either side of your vehicle. Check the opening type if you park in tight spaces.
Which option is the lightest to carry?
The Goplus 14 cu ft Dual-Side Opening Roof Box weighs 25 pounds. It is the lightest unit on this list. The Runave 14 Cu Ft Dual-Side Hard Shell is slightly heavier at 30.2 pounds. The Pidock 16 cu ft model is significantly heavier at 130 pounds. Consider weight if you need to remove the box frequently.
How wide is the PM Performotor box?
The PM Performotor 11 cu ft Hard Shell Cargo Box is 34 inches wide. This makes it wider than the OMAC 8 cu ft model, which is 28 inches wide. Its length is 53 inches. Ensure your vehicle roof has enough clearance. The width affects aerodynamics and clearance in garages.
Is there a white color option available?
Yes. The Runave 15.5 cu ft Dual-Side Roof Box comes in white. The Pidock 16 cu ft Hard Shell Roof Box is also available in white. Most other options, like the OMAC and Goplus models, are black. White boxes may reflect more sunlight, potentially keeping contents cooler.