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.

ErgoRack Models – RAM ProMaster
Model Vehicle Wheelbase Vehicle Height Streetside Feature Curbside Feature Weight Documents
HBB-PM 118 IN, 136  IN,159 IN, or 159 IN Ext. 90 IN (Low) or 101 IN (High) End Stop End Stop 45 lbs Overview Assembly
HBR-E-PM 118 IN, 136  IN,159 IN, or 159 IN Ext. 90 IN (Low) or 101 IN (High) End Stop Rotation 100 lbs Overview Assembly
HRB-E-PM 118 IN, 136  IN,159 IN, or 159 IN Ext. 90 IN (Low) or 101 IN (High) Rotation End Stop 100 lbs Overview Assembly
HRR-E-PM 118 IN, 136  IN,159 IN, or 159 IN Ext. 90 IN (Low) or 101 IN (High) Rotation Rotation 155 lbs Overview Assembly
HRR3-E-PM* 118 IN, 136  IN,159 IN, or 159 IN Ext. 90 IN (Low) or 101 IN (High) Rotation Rotation 166 lbs Overview Assembly

*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 third 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, lighting mounts, and more.

Van Crossbar Spacing and Ladder Size Guide
Crossbar Spacing Step Ladder Sizes Extension Ladder Sizes
4 ft spacing 6 – 8 ft. 16 – 20 ft.
5 ft spacing 8 – 10 ft. 16 – 24 ft.
6 ft spacing 8 – 12 ft.** 16 – 28 ft.
7 ft spacing 10 – 12 ft.** 20 – 32 ft.
8 ft spacing 10 – 12 ft.** 20 – 36 ft.

**12 ft. step ladders may require an extended upper add-on component

ErgoRack OverviewModified Date: January 18, 2018Filesize: 5,273kB
Ram ProMaster ErgoRack CutsheetModified Date: June 18, 2019Filesize: 1,336kB
HBI-E-PM22 OverviewModified Date: May 16, 2018Filesize: 541kB
HBI-E-PM42 OverviewModified Date: May 16, 2018Filesize: 555kB
HBI-E-PM52 OverviewModified Date: May 16, 2018Filesize: 537kB
HBR-E-PM22 OverviewModified Date: May 16, 2018Filesize: 507kB
HBR-E-PM42 OverviewModified Date: May 16, 2018Filesize: 472kB
HBR-E-PM52 OverviewModified Date: May 16, 2018Filesize: 502kB
HRI3-E-PM22 OverviewModified Date: May 16, 2018Filesize: 726kB
HRI3-E-PM42 OverviewModified Date: May 17, 2018Filesize: 726kB
HRI3-E-PM52 OverviewModified Date: May 17, 2018Filesize: 716kB
HRR-E-PM22 OverviewModified Date: May 17, 2018Filesize: 644kB
HRR-E-PM42 OverviewModified Date: May 17, 2018Filesize: 648kB
HRR-E-PM52 OverviewModified Date: May 17, 2018Filesize: 788kB
HRR3-E-PM22 OverviewModified Date: May 17, 2018Filesize: 644kB
HRR3-E-PM42 OverviewModified Date: May 17, 2018Filesize: 676kB
HRR3-E-PM52 OverviewModified Date: May 17, 2018Filesize: 676kB
VBI-E-PM11 OverviewModified Date: May 17, 2018Filesize: 509kB
VBI-E-PM21 OverviewModified Date: May 17, 2018Filesize: 506kB
VBR-E-PM11 OverviewModified Date: May 17, 2018Filesize: 480kB
VBR-E-PM21 OverviewModified Date: May 17, 2018Filesize: 469kB
VRI-E-PM11 OverviewModified Date: May 17, 2018Filesize: 639kB
VRI-E-PM21 OverviewModified Date: May 17, 2018Filesize: 644kB
VRI3-E-PM11 OverviewsModified Date: May 17, 2018Filesize: 666kB
VRI3-E-PM21 OverviewModified Date: May 17, 2018Filesize: 652kB
VRR-E-PM11 OverviewModified Date: May 17, 2018Filesize: 604kB
VRR-E-PM21 OverviewModified Date: May 17, 2018Filesize: 610kB
VRR3-E-PM11 OverviewModified Date: May 17, 2018Filesize: 631kB
VRR3-E-PM21 OverviewModified Date: May 17, 2018Filesize: 644kB
HBI-E-PM22 Assembly ManualModified Date: May 16, 2018Filesize: 4,120kB
HBI-E-PM52 Assembly ManualModified Date: May 16, 2018Filesize: 4,364kB
HBR-E-PM22 Assembly ManualModified Date: May 16, 2018Filesize: 3,920kB
HBR-E-PM42 Assembly ManualModified Date: May 16, 2018Filesize: 3,955kB
HBR-E-PM52 Assembly ManualModified Date: May 16, 2018Filesize: 3,799kB
HRI3-E-PM22 Assembly ManualModified Date: May 16, 2018Filesize: 6,209kB
HRI3-E-PM42 Assembly ManualModified Date: May 24, 2018Filesize: 6,373kB
HRI3-E-PM52 Assembly ManualModified Date: May 17, 2018Filesize: 6,497kB
HRR-E-PM42 Assembly ManualModified Date: May 17, 2018Filesize: 5,938kB
HRR-E-PM52 Assembly ManualModified Date: May 17, 2018Filesize: 5,957kB
HRR3-E-PM22 Assembly ManualModified Date: May 17, 2018Filesize: 6,046kB
HRR3-E-PM42 Assembly ManualModified Date: May 17, 2018Filesize: 6,078kB
HRR3-E-PM52 Assembly ManualModified Date: May 17, 2018Filesize: 6,058kB
VBI-E-PM11 Assembly ManualModified Date: August 03, 2018Filesize: 3,587kB
VBI-E-PM21 Assembly ManualModified Date: August 03, 2018Filesize: 3,661kB
VBR-E-PM11 Assembly ManualModified Date: August 03, 2018Filesize: 3,332kB
VBR-E-PM21 Assembly ManualModified Date: August 03, 2018Filesize: 3,333kB
VRI-E-PM11 Assembly ManualModified Date: August 03, 2018Filesize: 5,168kB
VRI-E-PM21 Assembly ManualModified Date: August 03, 2018Filesize: 5,182kB
VRI3-E-PM11 Assembly ManualModified Date: August 03, 2018Filesize: 5,579kB
VRI3-E-PM21 Assembly ManualModified Date: August 03, 2018Filesize: 5,548kB
VRR-E-PM11 Assembly ManualModified Date: October 22, 2018Filesize: 5,483kB
VRR-E-PM21 Assembly ManualModified Date: August 03, 2018Filesize: 5,032kB
VRR3-E-PM11 Assembly ManualModified Date: August 03, 2018Filesize: 5,516kB
VRR3-E-PM21 Assembly ManualModified Date: August 03, 2018Filesize: 5,493kB
Rotation Quick Start GuideModified Date: January 18, 2018Filesize: 5,006kB

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