Board and Batten Calculator

What Is Board and Batten Siding?

Board and batten is a siding style that alternates wide vertical boards with narrow strips (battens) that cover the seams between them. The boards are installed first with small gaps between them, and the battens are nailed over the gaps to create a watertight seal with a distinctive vertical pattern. This style originated in agricultural buildings and has become a popular choice for farmhouse, modern, and transitional home exteriors. The calculator above tells you exactly how many boards and battens you need for your wall dimensions.

How to Calculate Board and Batten Materials?

Divide the wall length by the repeat pattern width (one board width plus one gap). This gives the number of boards. The number of battens equals the number of gaps, which is one more than the number of boards. Each board and batten piece is cut to the wall height. Multiply the total number of pieces by the wall height for total linear footage. Add 5-15% waste depending on how many windows, doors, and corners you need to cut around.

What Board and Batten Dimensions Should I Use?

The most common board widths are 6, 8, 10, and 12 inches. Wider boards create a bolder look with fewer seams. Battens are typically 2 to 4 inches wide. A 1/4-inch gap between boards allows for wood expansion and ensures the batten covers the seam completely. For a traditional farmhouse look, use 10-inch boards with 3-inch battens. For a more contemporary appearance, try 8-inch boards with 2-inch battens. The board thickness is usually 3/4 inch (1-by material), and battens can be 1/2 to 3/4 inch thick.

What Materials Work Best for Board and Batten?

Cedar is the traditional choice for exterior board and batten. It resists rot naturally, takes paint and stain well, and weathers gracefully. Pine is more affordable but requires quality primer and paint to prevent moisture damage. Engineered wood products like LP SmartSide offer excellent dimensional stability and come with manufacturer warranties against rot and termites. Fiber cement board and batten (James Hardie) is fireproof, rot-proof, and extremely durable but heavier and harder to cut. PVC cellular boards never rot and need no painting but cost more upfront.

How to Install Board and Batten Siding?

Start with a moisture barrier (house wrap) over the wall sheathing. Install boards vertically, leaving a 1/4-inch gap between each board. Nail each board with two nails at each blocking or horizontal nailer location, typically every 24 inches vertically. Check plumb on every board. Once all boards are up, install battens centered over each gap. Nail battens through the gap into the sheathing or blocking, not through the boards themselves. This allows the boards to expand and contract independently beneath the battens without buckling.

How Many Nails or Screws Do I Need?

Each board gets two fasteners at every blocking point. With blocking every 24 inches on a 9-foot wall, that is 8-10 fastener points per board, totaling 16-20 fasteners per board. Battens get one fastener per blocking point (8-10 per batten). For a 30-foot wall with 8-inch boards, you will have roughly 35 boards and 36 battens, requiring approximately 900-1,000 nails or screws. Use stainless steel or hot-dipped galvanized ring-shank nails to prevent rust streaks and ensure holding power in all weather conditions.

Board and Batten vs Other Siding Styles

Board and batten creates strong vertical lines that make walls look taller. Horizontal lap siding (clapboard) emphasizes width. Shiplap provides a flat, overlapping profile. Shingle siding offers a textured, layered appearance. Board and batten uses more material per square foot than lap siding because the battens overlap the boards, adding a second layer. However, installation is straightforward and achievable for a skilled DIYer. The vertical orientation also sheds water effectively because there are no horizontal joints where water can pool.

How Much Does Board and Batten Cost?

Material costs range from $2-$4 per square foot for pine, $4-$7 for cedar, $5-$8 for engineered wood, and $6-$10 for fiber cement. Professional installation adds $3-$7 per square foot. A 30-foot by 9-foot wall (270 sq ft) costs roughly $540-$1,080 in pine materials or $1,080-$1,890 in cedar before labor. Painting or staining adds $1-$2 per square foot. The calculator helps you determine exact piece counts so you can price materials accurately at your local lumber yard.

Frequently asked questions