Pergola Lumber & Material BOM Calculator
Calculate complete lumber cut lists and hardware requirements for freestanding and attached backyard pergolas: support posts, double header beams, cross rafters, top shade purlins, and concrete footing bags.
Pergola Dimensions & Structure
Feet
Post-to-post distance along support beams.
Feet
Post-to-post distance along primary rafters.
Feet
Feet
Total Structural Lumber Order
4 POSTS (6x6)
29 Total Sticks
Roof Canopy: 14.0 ft x 12.0 ft (168 sq ft shade area)
Main Support Beams
4 Sticks (14ft 2x10)
Double beam on each post line
Primary Cross Rafters
12 Sticks (12ft 2x8)
Spaced 16" on-center
Detailed Bill of Materials (BOM)
Posts (6x6 Timber):
4 pcs @ 8.0 ft
Top Shade Purlins (2x2 / 1x2):
13 pcs @ 14.0 ft (12" OC)
Footing Concrete Bags:
Surface Brackets (0 bags)
Structural Fasteners:
16 Thru-Bolts (1/2"x8") + Rafter Clips