drywall screws are not that strong most builders will not use them for much more then drywall
now deck screws would work
i think being 1 1/2 thick would be good
but i would use green treated wood and properly 2x4 or 2x6 framed under the plywood
i would seal it will some spray on bedliner for a truck
i have done that to a small boat trailer to make it a flat bottom
ORIGINAL: gleason.chapman
ORIGINAL: johnny2
Looks like an accident waiting to happen if you ask me..
I have used the same thing,years ago..Trees grow and plywood gets weak..
The plywood is 1.5" thick, two 3/4" plywood piecesscrewed together with drywall screws (or deck screws, whatever ya have). See picture, not weak, lasts for at least 10 years and if it ever starts to get spongy, you install another one right over top of it in a tree.
The safety belt is a must. Much better than a commercial stand that you leave out all the time, since the bolts rust etc. Not a safety risk.
Chap
