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 | Ladder Size | Curb side | Ladder Size | Wheelbase | Height | Rack Weight | Documents |
VBR-E-PM11 | Base | N/A | Rotation | 6-10’ 16-40’ | 118″ | 90″ | 72 | Overview Assembly |
VRR-E-PM11 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 118″ | 90″ | 107 | Overview Assembly |
VBI-E-PM11 | Base | N/A | Incline | 6-10’ 16-28’ | 118″ | 90″ | 73 | Overview Assembly |
VRI3-E-PM11 | Rotation | 6-10’ 16-40’ | Incline | 6-10’ 16-28’ | 118″ | 90″ | 111 | Overview Assembly |
VRR3-E-PM11 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 118″ | 90″ | 109 | Overview Assembly |
VBR-E-PM21 | Base | N/A | Rotation | 6-10’ 16-40’ | 136″ | 90″ | 74 | Overview Assembly |
VRR-E-PM21 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 136″ | 90″ | 110 | Overview Assembly |
VBI-E-PM21 | Base | N/A | Incline | 6-10’ 16-28’ | 136″ | 90″ | 75 | Overview Assembly |
VRI3-E-PM21 | Rotation | 6-10’ 16-40’ | Incline | 6-10’ 16-28’ | 136″ | 90″ | 113 | Overview Assembly |
VRR3-E-PM21 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 136″ | 90″ | 112 | Overview Assembly |
HBR-E-PM22 | Base | N/A | Rotation | 6-10’ 16-40’ | 136″ | 101″ | 82 | Overview Assembly |
HRR-E-PM22 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 136″ | 101″ | 127 | Overview Assembly |
HBI-E-PM22 | Base | N/A | Incline | 6-10’ 16-28’ | 136″ | 101″ | 83 | Overview Assembly |
HRI3-E-PM22 | Rotation | 6-10’ 16-40’ | Incline | 6-10’ 16-28’ | 136″ | 101″ | 129 | Overview Assembly |
HRR3-E-PM22 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 136″ | 101″ | 129 | Overview Assembly |
HBR-E-PM42 | Base | N/A | Rotation | 6-10’ 16-40’ | 159″ | 101″ | 87 | Overview Assembly |
HRR-E-PM42 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 159″ | 101″ | 131 | Overview Assembly |
HBI-E-PM42 | Base | N/A | Incline | 6-10’ 16-28’ | 159″ | 101″ | 88 | Overview Assembly |
HRI3-E-PM42 | Rotation | 6-10’ 16-40’ | Incline | 6-10’ 16-28’ | 159″ | 101″ | 135 | Overview Assembly |
HRR3-E-PM42 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 159″ | 101″ | 133 | Overview Assembly |
HBR-E-PM52 | Base | N/A | Rotation | 6-10’ 16-40’ | 159″ | 101″ | 91 | Overview Assembly |
HRR-E-PM52 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 159″ | 101″ | 135 | Overview Assembly |
HBI-E-PM52 | Base | N/A | Incline | 6-10’ 16-28’ | 159″ | 101″ | 92 | Overview Assembly |
HRI3-E-PM52 | Rotation | 6-10’ 16-40’ | Incline | 6-10’ 16-28’ | 159″ | 101″ | 139 | Overview Assembly |
HRR3-E-PM52 | Rotation | 6-10’ 16-40’ | Rotation | 6-10’ 16-40’ | 159″ | 101″ | 137 | Overview Assembly |
Notes:
Ship thru configurations are available. All ErgoRacks for H1 (Low Roof) and H2 (High Roof) Ram ProMaster chassis models come with slides.
All racks can accommodate 16 foot to 40 foot extension ladders.
Rotation ladder rack crossbars can be spaced at six, seven, or eight feet. Ladders 28 feet and longer require 8 foot spacing of crossbars.
All racks can accommodate 8 foot step ladders. 8 foot step ladders require 6 foot spacing.
For step ladders longer than 8 feet, optional extended rear uppers and slides are available.
Part IDs with “3” in the prefix (ex. VRR3) designates a 3rd crossbar. Three crossbar racks allows more flexibility to carry both short and long ladders.
A wide range of accessories are available including conduit carriers, light holders, and more.
Maximum roof capacity of Ram ProMaster is 330 pounds when using three or more anchor locations.
Model # Key: H = High Roof, B = End Stop, R = Rotation, 3 = Third crossbar, E = Slide, PM = Ram ProMaster, 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-PM-M | FBM-1007, CBR-0007, FEA-0001, FEA-0001 | N/A | End Stop | End Stop | N/A | All | All | 45 lbs |
HBR-E-PM-M | FBM-1007, CBR-0007, FEA-0001, FEA-0003, FEA-0019 | VBR-E-PM11, VBR-E-PM21, HBR-E-PM22, HBR-E-PM42, HBR-E-PM52 | End Stop | Rotation | 8’ / 16-36’ | All | All | 100 lbs |
HRB-E-PM-M | FBM-1007, CBR-0007, FEA-0004, FEA-0020, FEA-0001 | N/A | Rotation | End Stop | 8’ / 16-36’ | All | All | 100 lbs |
HRR-E-PM-M | FBM-1007, CBR-0007, FEA-0004, FEA-0020, FEA-0003, FEA-0019 | VRR-E-PM11, VRR-E-PM21, HRR-E-PM22, HRR-E-PM42, HRR-E-PM52 | Rotation | Rotation | 8’ / 16-36’ | All | All | 155 lbs |
HRR3-E-PM-M* | FBM-1007, CBR-0007, CBR-0008, FEA-0004, FEA-0020, FEA-0003, FEA-0019 | VRR3-E-PM11, VRR3-E-PM21, HRR3-E-PM22, HRR3-E-PM42, HRR3-E-PM52 | Rotation | Rotation | 6-8’ / 16-36’ | All | All | 166 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.