“I had plenty of cardboard stocked up from moving and packages so I decided to try to make a ramp out of cardboard. I used PVA all-purpose glue at about mixed with water but I would probably use hot glue if I were to do it again. The top part is a "hardboard" sheet from Home Depot cut in half. When stacking cardboard, be sure to alternate the corrugations to increase the strength.” - Tri Tri-Rudolf
Tri Tri-Rudolf Makes a DIY Cardboard Ramp
