On 6/28/2018 10:44 PM, Ron wrote:
I'm thinking of making a motorcycle ramp 8 ft long & 3 ft wide with 3/4
inch
plywood to load a 600 lb bike on a car hauler trailer.Â* Will the 3/4 "
plywood
hold the weight?


I would not trust it. FWIW I used to load Harleys in the back of my 79
GMC and used an 8' 2x12. It bowed but never enough to make me feel it
might break. Trucks tail gates were not as tall back then either.

Maybe if you put a couple of cinder blocks under the plywood to limit
the bow, you would likely be OK. It would not have to be a perfect fit,
just close enough to limit the bow.