Pergola Lumber and Materials Calculator
Free pergola tool

Pergola Lumber and Materials Calculator

Enter the size and post count to see posts, beams, rafters and the board feet to plan for.

These tools give planning-level estimates from typical values. They are not quotes, designs or engineering, and results depend on your actual materials, soil, site, local rules and conditions. Only a yard visit can confirm what a project needs, and we give you a written scope and price before any work begins.

How it works

Four quick steps.

  1. 01

    Set the length and width

    The footprint of the pergola in feet.

  2. 02

    Pick posts and spacing

    How many posts and how far apart the rafters sit.

  3. 03

    Read the lumber

    Posts, beams and rafters with lengths and board feet.

  4. 04

    See the hardware

    Post bases, bolts and brackets to plan for.

Tips

  • Add ten percent for waste and for boards that are bowed or split.
  • Closer rafter spacing gives more shade but needs more lumber.
  • Longer spans need deeper beams, so ask us to check the size for your design.
Questions

About this tool.

Is this an exact list?

No. It is a planning estimate. We draw the pergola and confirm sizes before ordering.

Why do I need extra lumber?

Waste, cuts and the occasional bad board all add up.

Does it include the roof?

No. It covers the open frame. A solid roof adds framing and covering.

Free estimate

Ready to start your pergola project?

Call us and we will walk the yard and give you a clear plan, drawings and a written scope.

Call NowFree Estimate