Plywood Weight Limit Attic

Increasing the total weight on the floor to 4 480 pounds however results in a live load of 40 psf which is beyond the floor s load capacity.

Plywood weight limit attic.

Available are two sizes to fit 16 or 24 inch joist centers the pieces have pre drilled holes for putting screws. The attic is 2x6 s spaced 16 oc. Attic dek is a lightweight plastic product that spans the distance between the joists. If your attic joists won t bear the weight necessary to finish out a living space but the engineer cleared them to support floor decking for light storage you can install inch plywood or.

In choosing between oriented strandboard and plywood the building and construction technology department at the university of massachusetts amherst explains that 7 16 inch osb and inch plywood weigh in at 46 and 48 pounds respectively so they are quite similar. I put down a very thick plywood floor and use the attic for storage. Osb weight is usually a bit less than its plywood counterpart. If you are using 3 4 inch sturd i floor plywood however that.

Thick plywood sheets are durable but they re also heavy and it may be safer to use 1 2 inch plywood which is actually 15 32 inch thick to avoid loading the ceiling joists with extra weight. It spans approx 20 x20. There is yet another option called attic dek. With an evenly distributed live load of 30 psf which the tables show the floor is able to support the total weight on the floor would be about 3 360 pounds.

I live in a split level 50 year old house. Below are some walls forming a bedroom closet although i am not sure. Just like plywood if you re worried about your attic weight limits then don t use 2x6 planks. I am nearing completion of my attic project.