Pergola Material Calculator
Estimate preliminary pergola post, beam, rafter and shade-slat quantities, total lumber length and material cost for a rectangular layout.
Default project preview
6 posts
Side beams
4
Rafters
9
Shade slats
13
Post positions per side
3
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Post positions and horizontal members are rounded up from the entered spacings. Total lumber length sums posts, four side beams, rafters and shade slats.
FAQ
Pergola Material Calculator questions
Why are four side beams included?+
The default model uses a double beam along each long side.
Does this choose lumber sizes?+
No. Member dimensions depend on span, species, loads and connection design.
Are footings included?+
No. Foundation quantities should be estimated separately after the footing design is established.