2x4 to frame the shed and build the doors. Get eleven 8-foot boards.
1x6 tongue-and-groove siding. Pick up prestained boards or stain them yourself before installation. Get enough to cover about 75 square feet.
1 ¼x6 pressure-treated decking to frame the doors and lid. Get seven 8-foot boards.
Construction adhesive to glue the sheathing.
4-inch door hinges to attach each lid and the bifold doors to the framing. Get 10. Continuous (piano) hinges to create the bifold doors. Get two stainless steel 30-inch hinges.
3½-inch stainless-steel deck screws
2½-inch stainless-steel deck screws
1 5/8-inch stainless-steel deck screws
1 5⁄8-inch stainless-steel siding nails