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Board & Batten Calculator

Calculate boards, battens, fasteners, paint, and total material cost for board and batten siding or accent walls.

Boards are placed edge-to-edge vertically. Battens cover each joint plus both outer edges. Paint estimate assumes 2 coats at 350 sqft/gal coverage.

Total Material Cost

$682

24 boards · 25 battens · 180 sqft

Wall Area180 sqft
Boards (10" wide)24 boards
Battens (3" wide)25 battens
Board LF (+10% waste)238 LF
Batten LF (+10% waste)248 LF
Board Cost (238 LF @ $1.50)$356
Batten Cost (248 LF @ $0.75)$186
Fasteners (est.)10 lbs — $50
Paint / Stain (2 coats)2 gal — $90
Total Material Cost$682
construction

Contractor Note — Mike Callahan

Board and batten looks amazing but it's slow to install. Budget double the labor hours of lap siding. And run a level line every 4 feet vertically — once one board is off plumb, every batten after it amplifies the error.

Methodology

Boards = ceil(wall length in inches / board width). Battens = boards + 1 (one between each pair of boards, plus one on each outer edge). Board LF = boards x wall height x (1 + waste%). Batten LF calculated the same way. Fasteners estimated at 0.02 lbs per LF of material (stainless ring-shank nails recommended for exterior). Paint/stain at 350 sqft/gal coverage with 2 coats. Total cost = board cost + batten cost + fasteners ($5/lb) + paint ($45/gal).

Frequently Asked Questions

How wide should board and batten boards be?
The most common board widths are 8, 10, and 12 inches. Wider boards (10-12") create a more traditional farmhouse look and cover wall area faster, reducing installation time. Narrower boards (6-8") give a more refined, modern appearance but require more pieces and more labor. For exterior siding, 10" boards with 3" battens is the most popular combination — it balances visual proportion with material efficiency. Interior accent walls often use narrower 6-8" boards for a more detailed look.
Vertical vs horizontal board and batten — which is correct?
Traditional board and batten is always vertical. The boards run vertically with battens covering the joints, which naturally sheds water down the seams. Horizontal "board and batten" is technically reverse board and batten or channel siding — it works for interior accent walls but is not recommended for exterior applications because horizontal joints trap water behind the battens. If you want a horizontal exterior look, use lap siding or shiplap instead.
How do you waterproof board and batten siding?
Start with a quality housewrap (Tyvek or similar) behind the boards as a weather-resistant barrier. Prime all six sides of each board and batten before installation — this is critical and often skipped. Use stainless steel or hot-dipped galvanized ring-shank nails to prevent rust streaks. Leave a 1/8" gap at the bottom of each board for drainage. Apply two coats of exterior paint or solid-body stain, and plan to repaint every 7-10 years. Back-priming is the single most important step — boards that absorb moisture from behind fail before boards exposed to rain.
What does board and batten cost per square foot installed?
Installed cost ranges from $8-15 per sqft for wood board and batten, including materials and labor. Materials alone (boards, battens, fasteners, paint) run $4-7 per sqft depending on wood species — cedar and redwood cost more than pine or engineered wood. Labor is the major cost driver because board and batten takes roughly twice as long to install as lap siding: each board must be individually plumbed, nailed, and then each batten applied over the joints. Engineered wood (LP SmartSide) board and batten panels can reduce labor cost by 30-40% since they come in 4x8 sheets with the pattern pre-milled.