For a more common, cheaper, and easier to build shed, use plywood. building a sturdy shed floor from plywood. here are the best practices for building a wood shed floor from scratch: clear and level the area that you want to build your shed. adding gravel “pads” under the deck blocks can be a good idea if your soil is soft.. The best material for the shed floor is pressure treated 3/4 inch construction grade exterior plywood. being pressure treated means wet tools or snow from the snow-blower or your boots, won’t damage the floor.. Shed plywood floor: treated? i am building a backyard shed, 8x12. i realized i purchased 3/4" non-treated plywood for the floor... should i get treated instead? the shed will be on 4x4 treated skids on concrete blocks, with 2x6 joists. so the plywood will be 9+ inches off the ground in all areas..
Click here if you want to build your shed on a concrete slab. if you live in an exceptionally wet area or have a major termite problem you might want to use pressure treated wood for the entire floor including the skids, the floor joists and the plywood sheeting.. 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.. There are three main sections to your shed floor: the shed floor supports can be either joists or bearers. the choice of which is dependent on the type of support you want to use for your shed. the floor decking material is the structural floor that is supported on the joists/bearers. it can be either timber planks, osb or plywood..
