Board & Batten Siding Cost Calculator
Price a board & batten job from your net wall area and installed price, count the boards by coverage, and hold back a contingency for the extra battens and trim the pattern demands.
Board & batten on 500 sq ft at $8.00/sq ft is about $4,400.00 (roughly 63 boards at 8 sq ft each). Wide boards with narrow battens over the seams use more linear material and trim than lap — count the boards by area and the battens by run, and enter your $/sq ft.
1 Enter your numbers
Board & batten runs wide vertical boards with narrow battens covering the seams between them. Because the pattern is vertical and every seam carries a batten, the job uses noticeably more linear material and trim than horizontal lap — and the quantity is board-count driven, not square-count driven. This estimator keeps the two costs honest and separate: the boards, priced by the square foot of wall you enter, and the battens plus accessories, entered as an add-on because they scale with the number of seams and the wall height, not with the area.
Everything here is arithmetic on numbers you supply. No price, labor rate or brand coverage is assumed; the board coverage and the price per square foot come from your own product spec and quote.
Formula
The estimate is a board count plus a two-part cost, closed over a contingency multiplier:
boards = ceil(net_area ÷ board_coverage)
total = (net_area × price_per_sqft + add_ons) × (1 + contingency)
The board count uses ceil() because you cannot buy a fraction of a board — every partial board rounds up. board_coverage is the face width a board actually shows times its run: a nominal 1×8 board reveals roughly 7¼ in of face, so a 10 ft board covers about 6 sq ft; enter the coverage your product and wall height give, not a nominal figure. The add_ons line is where the battens live — count one batten per seam at the full wall height and price them by the linear foot.
Worked example
Take a 500 sq ft gable end, a board that covers 8 sq ft, an installed price of $8.00 a square foot, no add-ons yet, and a 10% contingency:
- Boards: ceil(500 ÷ 8) = 63 boards (62.5 rounded up)
- Subtotal: 500 × $8.00 = $4,000
- With 10% contingency: $4,000 × 1.10 = $4,400
The battens themselves — one per seam, each the full wall height — are counted separately and entered in the add-on field, because a wall with more, narrower boards has more seams and more batten linear feet for the same area.
What to measure first, and where it goes wrong
Measure the net wall area the way the square-footage calculator does: walls (perimeter × height) plus gables (½ × base × height), minus the openings. Then watch three things that quietly inflate a board & batten job:
- Batten linear feet. Battens are the signature cost of this style and they do not track area — a taller wall or a tighter board spacing adds battens without adding a single square foot. Count seams × wall height.
- Terminations and corners. Inside and outside corners, window and door surrounds and the top and bottom trim all consume extra board and batten; carry them in the add-on line or in a higher waste allowance on the boards.
- Vertical waste. Vertical boards waste more at the top course than lap does; a 10–15% board allowance is prudent on a complex elevation.
The result is a planning estimate built from your numbers, not a bid. Confirm the coverage on the manufacturer’s installation instructions and get itemized written quotes from licensed, insured siding contractors before you commit.
Reference table
Board & batten is a higher-waste pattern; the labeled layout allowances below are a planning guide — measure your own elevation and confirm the board coverage with the manufacturer.
| House layout | Typical waste |
|---|---|
| Simple rectangle, few openings | ~10% |
| Average house, some gables & corners | 10–12% |
| Complex — many corners, gables, dormers | 12–15% |
| Cedar shakes / shingles / diagonal pattern | 15%+ |
A nominal 1×8 board reveals about 7¼ in of face; a 10 ft board then covers roughly 6 sq ft. Enter the coverage your product actually gives.
Frequently asked questions
How much does board & batten siding cost?
It is your net wall area times your installed price per square foot, plus battens and trim, times a contingency. In the worked example, 500 sq ft at $8.00/sq ft with a 10% contingency is about $4,400. Board & batten typically runs a little higher than plain lap because of the extra battens and vertical waste; enter your own quoted price.
How many boards do I need?
Divide your net area by the square feet one board covers and round up: boards = ceil(area ÷ board_coverage). At 8 sq ft per board, 500 sq ft is ceil(62.5) = 63 boards. Then count the battens separately — one per seam at the full wall height.
Are the battens included in the price per square foot?
Only if your quoted $8.00/sq ft already covers them. Battens scale with the number of seams and the wall height, not with area, so this tool keeps them in a separate add-on line. If your contractor bundles everything into one $/sq ft, leave the add-on at zero.
What contingency should I use?
10% (0.10) is a reasonable default for a straightforward elevation; use 12–15% for many corners, dormers and terminations, where vertical waste and trim run higher. It is a labeled planning buffer, not a fixed rate — adjust it to your job.