Fencing

Board and Batten Layout Calculator

Estimate vertical batten count and adjusted spacing for a simple board and batten wall layout.

Assumptions

  • The calculator models one straight wall width.
  • It estimates vertical batten count and spacing only, not top rails, bottom rails, panels, trim, adhesive, nails, caulk, or paint.
  • Final layout should be checked around outlets, windows, corners, and trim.
  • Any cost estimate uses only the unit price you enter. The site does not provide live, current, near-me, or store-specific material prices.

Formula

  1. Wall width in inches = wall width in feet x 12.
  2. Estimated batten count is based on the desired spacing plus batten width.
  3. Actual spacing = remaining open width divided by the number of gaps.
  4. The outside battens are counted in the layout.

Example calculation

Example: 12 ft wall

A 12 ft wall with 2.5 in battens and desired 18 in spacing produces a layout of 8 battens with about 17.71 in clear spacing.

Common mistakes

  • Forgetting to account for existing trim and outlets.
  • Treating desired spacing as exact instead of letting the calculator adjust it evenly.
  • Counting only inside battens and missing the two outside battens.

FAQ

Does this include horizontal rails?

No. It estimates vertical battens and spacing only.

Is the spacing exact?

The calculator adjusts spacing so the battens fit evenly across the entered wall width.