Most of us probably have a need for more storage. You can add temperature control and noise reduction to a standard storage shed just by adding insulation. Follow these simple steps to build your own insulated storage shed.
Build your shed on a level plot of ground. Use a hand tamper or compacting machine to compact the ground. Cut two 4x4 pieces of lumber to a length of 96 inches for the skids upon which the shed will rest. Cut seven 2x4s to a length of 93 inches to serve as floor joists. Cut two 2x4s 96 inches long to serve as end pieces for the floor frame. Place the joists 16 inches apart on center running perpendicular to the end pieces. Nail the end pieces to the joists and the frame to the skids as shown in the photo. Level the entire foundation using a carpenter's level.
Nail 5/8-inch, 4-foot x 8-foot sheets of plywood to the floor frame. These sheets should be set so that the edges are flush on all sides.
Build the walls of the shed by first cutting two 2x4s to a length of 96 inches. These will be the wall's top and bottom plates. Cut five 2x4s to a length of 78 inches to serve as studs. Nail them between the top and bottom plates 24 inches apart on center, framing rough opening for any doors or windows you have planned. Repeat this process for all four walls. The top photo shows a cross section of the shed wall.
Cut 5/8-inch exterior siding sheets to size so that they lay flush with the tops and sides of the top plate. Nail the siding to the outside of wall, letting it hang 1 inch below the bottom plate.
With help, raise the walls into place and brace them. Nail the bottom plates to the floor.
Raise the roof trusses up to the top plates of the wall one at a time, starting on one end. Nail them to the top plates of the side walls, spacing them at 24-inch intervals.
Deck the roof by nailing 5/8-inch, 4-foot x 8-foot plywood to the roof trusses. Cover the roof decking with roofing felt. Overlap the edges of the felt by 4 inches. Nail the paper to the roof decking with roofing tacks. Nail a drip edge along the edges of the roof and shingle it. Trim the shed and paint it to your preference.
Hang doors and windows in the framed openings you made in the walls.
Cut pieces of roll insulation to 96-inch lengths. Lay the pieces between all the wall studs and roof trusses in the interior of the shed, and staple to the outside siding with a heavy-duty stapler. Cover the inside walls with drywall or an interior siding of your choice.