Things You'll Need
Stainless steel screws
If you are building a tree house or want to enclose an attic or shed, you can make a plywood hinged door. This project is simple, requiring no extensive carpentry or woodworking skills. You will need several tools and a sheet of pressure-treated plywood, which you can buy at any home-improvement store or lumber yard. Once you have your sheet of plywood, fabricating the door is a straightforward job.
Measure the height and width of the opening in which you are going to install the plywood door, using a tape measure.
Measure and mark cut lines on the plywood with your tape measure and a pencil.
Place the plywood on a table or workbench. Put on eye protection and cut along the lines drawn on the plywood with a circular saw.
Attach 120-grit sandpaper to a sander and sand the piece of plywood to smooth it and take off any splinters.
Apply a coat of wood sealer to the plywood using a paintbrush and allow to dry as long as directed by the manufacturer.
Fasten hinges to the plywood door, placing one several inches from the top and from the bottom, using stainless steel screws and a screw gun, then screw a door handle to the front of the plywood. You can now hang your plywood hinged door.