Check local building codes, permits, and property line setbacks
Choose the shed size, style, and location
Mark the shed footprint on the ground
Clear and level the site
Build a solid foundation or base
Install skids, gravel, concrete blocks, or a concrete slab as needed
Frame the floor with pressure-treated lumber
Add floor joists and subflooring
Build the wall frames on a flat surface
Raise and secure the wall frames
Install wall sheathing
Frame and install the door opening
Build and install roof trusses or rafters
Add roof sheathing
Install roofing felt and shingles or metal roofing
Install exterior siding
Add trim, fascia, and soffit
Hang the door
Install windows or vents if desired
Apply weatherproofing and seal gaps
Paint or stain the shed
Install shelving, hooks, and interior storage
Inspect the shed for stability, alignment, and leaks