Lightweight, Safe and Easy
Prime Design has been the industry’s ergonomic leader since 1992, when we first introduced the concept of an ergonomic ladder rack.
Our design philosophy starts with the worker – how can we make the job safer, easier and more comfortable for the human body? That is because we firmly believe that a product’s design and how it impacts the user is every bit as important as the quality of materials and construction.
The ErgoRack was designed to reduce muscle stress, eliminate risk of injury and speed the job of loading and unloading ladders from a work van.


Easy to use
Deploys with only 2 fingers

Reduce Injuries
Eliminates slip and fall hazards from climbing on bumper or tire

Improve Productivity
Deploy or stow in less than 20 seconds

Safe Operation
Feet stay safely on the ground.

Reduce Back Strain
Reduce back and muscle strain from improper loading.

Smooth Operation
Hydraulic cylinder provides smoothest, controlled descent of any rack in the industry.

Easy Access
Removable handle – easy access for operators of any height.

Maintenance
Maintain vehicle warranty and resale value with no holes to drill.

Ergonomic
Winner of ergonomic awards in USA, France, Germany, and Australia.
Standard Models | Street side | Recommended Step / Extension Sizes |
Curb side | Recommended Step / Extension Sizes |
Wheelbase | Height | Rack Weight | Standard Spacing Options | Documents |
146 IN Wheelbase & Standard Roof [L1H1] |
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HBR-NV11B | Base | N/A | Rotation | 8’ / 16-40’ | 146″ | 84″ | 75 lbs | 6, 7, or 8′ | Overviews Assembly |
HBI-NV11B | Base | N/A | Inclined | 8’ / 24-28’ | 146″ | 84″ | 76 lbs | 6, 7, or 8′ | Overviews Assembly |
HRR-NV11B | Rotation | 8’ / 16-40’ | Rotation | 8’ / 16-40’ | 146″ | 84″ | 116 lbs | 6, 7, or 8′ | Overviews Assembly |
HRI-NV11B | Rotation | 8’ / 16-40’ | Inclined | 8’ / 24-28’ | 146″ | 84″ | 117 lbs | 6, 7, or 8′ | Overviews Assembly |
HRR3-NV11B | Rotation | 8’ / 16-40’ | Rotation | 8’ / 16-40’ | 146″ | 84″ | 122 lbs | 6, 7, or 8′ | Overviews Assembly |
146 IN Wheelbase & High Roof [L1H2] |
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HBR-E-NV12B | Base | N/A | Rotation w/slide | 8’ / 16-28’ | 146″ | 106″ | 77 lbs | 6, 7, or 8′ | Overviews Assembly |
HRR-E-NV12B | Rotation w/slide | 8’ / 16-28’ | Rotation w/slide | 8’ / 16-28’ | 146″ | 106″ | 121 lbs | 6, 7, or 8′ | Overviews Assembly |
HRR3-E-NV12B | Rotation w/slide | 8’ / 16-28’ | Rotation w/slide | 8’ / 16-28’ | 146″ | 106″ | 127 lbs | 6, 7, or 8′ | Overviews Assembly |
Notes:
Ladders 28 feet or longer require 8 foot spacing of crossbars.
For step ladders longer than 8 feet, optional extended rear uppers and slides are available.
Check the vehicle’s manufacturer recommendation for roof capacity weight limit.
Model # Key: H = High Roof, B = End Stop, R = Rotation, 3 = Third crossbar, E = Slide, NV = Nissan NV Cargo, M = Modular
Complete Racks | Modules | pre-assembled full rack model Cross Reference | Left side | Right side | Recommended Step / Extension Sizes | Wheelbase | Height | Rack Weight |
HBB-NV-M | FBM-1010, CBR-0007, FEA-0001, FEA-0001 | N/A | End Stop | End Stop | N/A | All | All | 33 lbs |
HBR-E-NV-M | FBM-1010, CBR-0007, FEA-0001, FEA-0003, FEA-0019 | HBR-NV11B, HBR-E-NV12B | End Stop | Rotation | 8’ / 16-36’ | All | All | 88 lbs |
HRB-E-NV-M | FBM-1010, CBR-0007, FEA-0004, FEA-0020, FEA-0001 | N/A | Rotation | End Stop | 8’ / 16-36’ | All | All | 88 lbs |
HRR-E-NV-M | FBM-1010, CBR-0007, FEA-0004, FEA-0020, FEA-0003, FEA-0019 | HRR-NV11B, HRR-E-NV12B | Rotation | Rotation | 8’ / 16-36’ | All | All | 143 lbs |
HRR3-E-NV-M* | FBM-1010, CBR-0007, CBR-0008, FEA-0004, FEA-0020, FEA-0003, FEA-0019 | HRR3-NV11B, HRR3-E-NV12B | Rotation | Rotation | 6-8’ / 16-36’ | All | All | 154 lbs |
*Three crossbar rack
Crossbar spacing and the vehicle’s wheelbase length will dictate the ladders that can be carried. Crossbars can be spaced at six, seven, or eight feet. A 3rd crossbar can be spaced four, five, six, or seven feet. If carrying a long extension ladder and a short step ladder, a three crossbar rack is suggested. Contact Prime Design customer service for application specific questions. Check the vehicle manufacturer’s recommendation for roof capacity weight limits. A wide range of accessories are available including conduit carriers, light holders, and more.