I needed a little extra height with my 2017 Ford F350 and 2017 Northern Lite 8.11 SE between the cab and bottom of the camper so following is what I did.
I bought 2 qty 4’x6′ 3/4″ horse stall mats and put them side by side on my garage floor. Then, I put my 3/8″ standard DeeZee rubber bed mat on top of them to use as a template. I then but out, using a razor knife, around the bed mat so the horse stall mats fit my bed perfectly.
I put the horse stall mats on the bottom and my standard rubber mat on top. Perfect solution for me and will never have to worry about a piece of OSB wood rotting and warping or a piece of foam core board collapsing.
2017 F350 Super Duty 4x4, CCSB, XLT Premium Package, 6.2 gas, 3.73 rear end, GVWR 11,300 lbs, Payload 4226 lbs, Silver Ingot, Camper Package, Split bench front seat, Upfitter switches, LED Box Lighting, Rear Step Tailgate, Air Lift 5000 Ultimate Airbags with Air Lift WirelessAIR on board compressor kit and remote, Torklift Upper Stableloads, Torklift tie downs w/ Fastguns
2017 Northern Lite 8.11 QC SE