Things You'll Need
Instructions
Cut the PVC pipe horizontally to create a 3 1/2-inch-long pipe.
Set the pieces of 2x4 into the shape of a square frame; lock the pieces into place with the three-inch-long wood screws.
Fasten the 16X16-inch plywood to the square frame with the 1 3/4-inch wood screws to create a bottom for the box.
Line the bottom of one end of the PVC pipe with the construction adhesive. Set the pipe in the center of the box with the adhesive side against the plywood bottom. Press down firmly on the top of the pipe to stick it into place.
Take a break to provide enough time for the glue to dry according to the product's instructions .
Cut a four-inch-diameter hole into the center of your 13x13-inch piece of outdoor carpet.
Place the cut carpet over the center PVC pipe so that it slides down into contact with the bottom plywood.
Staple the carpet into place with the staple gun.
Paint, seal or prime the wood sections of the box to create your own unique washers box.