Choose the pergola location
Check local building codes and permit requirements
Measure the area and mark the layout
Decide the pergola size, height, and style
Gather materials and tools
Select and prepare the posts, beams, rafters, and hardware
Clear and level the site
Mark post positions
Dig post holes or prepare footings
Set post anchors or concrete footings
Install and plumb the posts
Secure the posts in place
Attach the main support beams
Install cross beams or rafters
Add decorative slats if desired
Fasten all connections with appropriate hardware
Check alignment, level, and square
Sand rough edges and apply wood treatment or sealant
Add stain, paint, or weatherproof finish
Inspect the structure for stability
Maintain the pergola regularly