Rev: 11.11.21 Page 15 CCD-0004203
Upper Deck Riser
Accepted Upper Deck RV Engineering Guidelines Rev: (3/1/2021)
* Formed front and rear riser gusset with return flange must be used or have to go up a tube gauge.
15.1 Upper Deck Riser Cross Tube rating specifications
GVWR Front Rear
≤12,000 LBS 2X3 - 11GA 2X3 - 11GA
12,001 - 16,800 LBS 2X4 - 11GA 2X4 - 11GA
16,801 - 21,000 LBS 2X4 - 7GA 2X4 - 11GA
>18,000 LBS TOY HAULER 2X4 - 1/4GA 2X4 - 7GA
>21,001 LBS 2X4 - 1/4GA 2X4 - 7GA
15.2 Upper Deck Riser Cross Tube NOTES
* Long side of riser cross tube must be vertically oriented.
* Front riser cross tube to be 3/4" narrower than UD width.
* Rear riser cross tube to be 1/4" narrower than UD width.
* Gusset 794316 to be used to cap the ends of the front riser cross tube.
* Gusset 785150/785151 to be used on front and rear risers.
15.3 Upper Deck Risers
GVWR Front 0 Front Mitered Rear
≤12,000 LBS 2X4 11GA 2X4 11GA 2X3 11GA
12,001 - 16,800 LBS 2X4 11GA 2X5 11GA 2X4 11GA
16,801 - 21,000 LBS 2X5 11GA 2X6 11GA 2X5 11GA
>21,001 LBS 2X6 11GA 2X6 7GA 2X6 11GA
15.4 Upper Deck Riser NOTES
* Riser cross tubes must match above guidelines to use these risers.
* Front riser miters: 0°, 7°, 10°, 15° only.
* If distance between bottom of risers (outside to outside) is 20", or less inquire with Management.
* OEM must confirm riser heights and pin location to ensure fitment for all intended tow vehicles. Lippert can
provide assistance w/ body builder info as needed.
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