Building a shed floor is actually pretty straightforward. for many handymen, it’s a doable job in a day and a half, from picking up the materials to fastening the final screw. using 3/4 inch thick pressure treated plywood for your shed floor is the most economical choice and will last you 20+ years if done well.. A newbie here with a question. i'm building a shed base that will be approx 8'x8' and will be made with pressure treated 2x6's 16" on center.it will be supported on cement piers on the corners and middle. can anyone tell me which would be the best choice for the decking? should i use pressure treated plwood,or tounge and groove osb board. i'm placing a vinyl shed of 7'x7 on top of it.it's just. That leaves you with 2 choices, the untreated 3/4" plywood or pressure treated 1/2" plywood. if it were my shed, and i'd be using it frequently, doubling up the 1/2" treated plywood would be the best option. but it doesn't end with simply that recommendation..
Cdx plywood is the most economical choice for decking your shed for those of you that don't know, cdx means that the plywood has a c face and a d face a being the best the x means that is has exterior grade glue as long as this plywood doesn't see any long term moisture it should work just fine.. I have plenty of sheets of 3/4" 4x8 plywood and was wondering how well it will hold up to the elements. my plan was to hang the plywood, and stain it the same color as the shed. would stain, or an outdoor paint be better for this application?? do you think plywood can hold up for say 5-10 years , outdoors if properlly topcoated???.. Best answer: i would use exterior grade plywood. overtime paint won't keep moisture from getting to the adhesive in the plys. i would also consider putting a pressured treated "mud" board ( 8 inches wide or better) at the bottom because that is the area that stays the wettest when it rains..
