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Board & Batten Wall Calculator

Free board and batten layout calculator. Enter your wall dimensions and batten width to get symmetric, auto-evened spacing plus a material cost estimate for battens and optional trim rails.

使うべき場面

Use before buying lumber for an accent wall — it locks in a symmetric layout and gives you a shopping-list cost so you're not guessing at the hardware store.

他の指標との比較

Online spacing calculators often only handle the geometry. This one adds a material cost estimate in the same step.

Enter your values below. Calculations run locally as you type.

仕組み

Battens needed = wall width ÷ (batten width + target gap), rounded to the nearest whole batten.

The actual gap is then recalculated so the leftover wall width divides evenly into a gap before the first batten, between every batten, and after the last — keeping the layout symmetric.

Material cost = battens × (wall height in feet) × cost per linear foot, plus an optional top/bottom trim rail priced at twice the wall width in feet.

よくある質問

Should I use equal spacing or a fixed reveal gap?

Equal spacing (what this tool computes) centers the pattern symmetrically on the wall, so the gap before the first batten matches the gap after the last one. A fixed reveal gap is simpler to cut but often leaves an uneven sliver at one end of the wall.

How many battens is "enough" for a wall?

Most accent walls look balanced with battens spaced 12–16 inches apart on-center, which is why the target gap defaults to 14 inches. Wider spacing reads as sparse; narrower spacing pushes material cost up quickly.

How do I work around outlets and switches?

This tool gives you the even-spacing starting point for the whole wall, but it can't know where your outlets are. Shift one or two battens by an inch or two by hand so a vertical board doesn't land directly on a switch plate — small manual nudges rarely throw off the overall symmetry.

実例

入力

144" wide × 96" tall wall, 2.5" battens, 14" target gap, $3.50/ft batten cost, trim rail on at $1.75/ft.

出力

9 battens at a 12.15" actual gap, $294 total ($252 battens + $42 trim).

144 ÷ (2.5 + 14) ≈ 8.73 rounds to 9 battens. Actual gap = (144 − 9×2.5) ÷ 10 = 12.15". Batten cost = 9 × (96/12) × $3.50 = $252; trim = 2 × (144/12) × $1.75 = $42.

よくある落とし穴

  • Doesn't account for outlets, switches, or windows — you may need to nudge a batten or two by hand.
  • Assumes battens run floor to ceiling; wainscoting-height board and batten needs a shorter height input.
  • Trim cost only covers a top and bottom rail, not any vertical corner trim.

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