Plan the deck size and shape
Check local building codes and permit requirements
Choose the deck location and elevation
Mark the layout with stakes and string
Call utility locating services before digging
Excavate footing holes to required depth
Pour concrete footings
Install post bases or anchors
Set and secure support posts
Attach the ledger board to the house if applicable
Install beams on the posts
Install joists at proper spacing
Add blocking if needed
Install deck boards perpendicular to joists
Leave proper gaps between boards
Cut boards to fit edges and openings
Install stairs and stair stringers if needed
Add railings and balusters where required
Install fascia and trim
Apply fasteners, connectors, and hardware rated for outdoor use
Sand rough edges and check for loose boards
Seal, stain, or paint the deck if desired
Inspect the finished deck for stability and safety