Board and Batten Calculator
Plan a board-and-batten wall in minutes. Enter the wall width and height, the batten width and the spacing you want, pick whether battens land at both ends and which horizontal rails to add, and get the batten count, the exact even gap and on-center spacing, total linear feet of 1× stock, how many boards to buy, and cost — with spacing options, a by-width table, and a downloadable PDF.
| Battens | Gap | On-center | Spaces |
|---|---|---|---|
| Enter a wall to compare | |||
| Batten | Battens | Gap | Total LF |
|---|---|---|---|
| Enter a wall to compare | |||
How to use the board and batten calculator
Enter the wall width and height, pick your batten width and the spacing you want, choose whether battens land at both ends and which rails to add, and get the batten count, the exact even gap and on-center spacing, total linear feet of 1× stock, boards to buy, and cost.
Enter the wall
Width and height in feet, plus how many identical walls you’re doing. The verticals run the full height.
Pick batten & gap
Tap 1×2, 1×3 or 1×4, or type a custom width, then set the gap you want between battens.
Choose the layout
Battens at both ends to frame the wall, plus top, bottom and/or a middle horizontal rail.
Read the count & save a PDF
See battens, gap, on-center, linear feet and boards to buy, compare options, and download the report.
How board and batten spacing is calculated
Decorative board and batten has no code rule — the goal is simply even battens across the wall. Pick a target gap, find the whole number of battens that lands closest to it, then let the gap settle so every space is identical end to end.
Worked example — a 12 × 8 ft wall, 1½″ battens, 16″ target gap, battens at both ends
Battens: round((144 + 16) ÷ (1.5 + 16)) = round(9.1) = 9
Spaces: 9 − 1 = 8
Actual gap: (144 − 9 × 1.5) ÷ 8 = 16.31 in
On-center: 16.31 + 1.5 = 17.81 in
Linear feet: (9 × 8) + (2 rails × 12) = 96 ft
9 battens, gaps of 16.31 inches, 96 linear feet — 12 eight-foot boards with a top and bottom rail.
Board and batten spacing charts
The lookups that come up most — batten counts by wall width, the effect of batten size, nominal against actual board widths, and linear feet for common accent walls.
| Wall width | Battens | Spaces | Actual gap | On-center |
|---|---|---|---|---|
| 6 ft | 5 | 4 | 16.13 in | 17.63 in |
| 8 ft | 6 | 5 | 17.40 in | 18.90 in |
| 10 ft | 8 | 7 | 15.43 in | 16.93 in |
| 12 ft | 9 | 8 | 16.31 in | 17.81 in |
| 14 ft | 11 | 10 | 15.15 in | 16.65 in |
| 16 ft | 12 | 11 | 15.82 in | 17.32 in |
| 18 ft | 14 | 13 | 15.12 in | 16.62 in |
| 20 ft | 15 | 14 | 15.64 in | 17.14 in |
Counts land the gap as close to 16 inches as a whole number of battens allows, with a batten tight against each end. The gap flexes a little either side of the target — that’s what keeps the spacing even.
| Batten | Face width | Battens | Actual gap | On-center |
|---|---|---|---|---|
| 1×2 | 1-1/2 in | 9 | 16.31 in | 17.81 in |
| 1×3 | 2-1/2 in | 8 | 17.14 in | 19.64 in |
| 1×4 | 3-1/2 in | 8 | 16.00 in | 19.50 in |
| 1×6 | 5-1/2 in | 7 | 18.33 in | 23.83 in |
Wider battens eat into the wall, so you need fewer of them and the gap grows. Always calculate with the actual face width of the board you’re buying, not the nominal name.
| Nominal | Actual face width | Typical use |
|---|---|---|
| 1×2 | 1-1/2 in | Fine, closely spaced battens |
| 1×3 | 2-1/2 in | The most popular all-round batten |
| 1×4 | 3-1/2 in | Bold, farmhouse-style battens and rails |
| 1×6 | 5-1/2 in | Wide rails, base boards, header pieces |
| 1×8 | 7-1/4 in | Deep top rail or shelf-height ledge |
A 1x board is three-quarters of an inch thick and milled narrower than its name — a “1×4” is 3½ inches wide. Use the actual face width for spacing, and keep battens and rails the same nominal size so everything sits flush.
| Wall (W × H) | Battens | Vertical LF | Rail LF | Total LF |
|---|---|---|---|---|
| 8 × 8 ft | 6 | 48 ft | 16 ft | 64 ft |
| 10 × 8 ft | 8 | 64 ft | 20 ft | 84 ft |
| 12 × 8 ft | 9 | 72 ft | 24 ft | 96 ft |
| 12 × 9 ft | 9 | 81 ft | 24 ft | 105 ft |
| 16 × 8 ft | 12 | 96 ft | 32 ft | 128 ft |
| 16 × 10 ft | 12 | 120 ft | 32 ft | 152 ft |
Vertical feet are battens × height; rail feet are two × width for a top and bottom rail. Add a middle rail and another wall-width run joins the total. Divide by board length and round up for boards to buy.
Board and batten is vertical battens spaced evenly across a wall, with the exposed gap between them and horizontal rails capping the top and bottom. Get the batten count right and the gaps fall out even; mark the layout off the on-center spacing.
- Even gaps are the whole game — one odd space at a corner is what makes a wall look off, so solve for the count first.
- Battens at the ends frame it — a batten in each corner hides the joint and sets the rhythm; spaces are then one fewer than battens.
- Rails add up fast — each horizontal is a full wall-width run, so a middle rail is another whole board’s worth of stock.
Everything the calculator works out
One set of measurements gives you the batten count, the exact spacing, the linear feet, the boards to buy and the cost — plus a comparison across batten sizes and a report you can take to the yard.
The figures behind every accent wall
Built for anyone planning an accent wall
An entryway feature, a bedroom accent wall, a whole dining room — the layout rule is the same, and getting the batten count and the even gap right the first time is the difference between a clean wall and a lopsided one.
Adding a board-and-batten feature wall to a bedroom or entry, and wanting the battens evenly spaced and the shopping list right before the first cut.
- Start with a 16″ target gap
- Keep battens at both ends
- Lay out by on-center marks
Dialing in the proportion of a wall — batten width, spacing and whether to run a two-tier look with a middle rail and ledge.
- Compare 1×2, 1×3 and 1×4
- Add a middle rail for two tiers
- Match rails to batten size
Quoting a feature wall, totaling linear feet and boards across several identical walls, and handing the client a clean spec.
- Set the wall count for a batch
- Match board length to wall height
- Save the PDF with the quote
7 tips for a board and batten wall that looks right
The small decisions that separate a crisp feature wall from a wonky one — and the checks that catch a problem before you’ve cut a board.
Board and batten FAQ
The spacing, sizing and material questions people ask most when planning a board-and-batten wall.
Take the wall width in inches, add the gap you want, then divide by the batten width plus the gap, and round. With battens at both ends: round((wallWidth + gap) ÷ (battenWidth + gap)).
For a 12-foot wall (144 in) with 1½-inch battens and a 16-inch target gap, that’s 9 battens, and the calculator nudges the gap slightly so all nine land evenly end to end.
There’s no code rule for decorative board and batten, so it’s an aesthetic choice. Most accent walls use 12 to 18 inches between battens, with 16 inches the most common because it reads as balanced and often lands near the studs.
Narrower 8–12 inch spacing gives a denser, traditional look; 18–24 inches feels modern and open. Whatever you pick, space the battens evenly — an uneven gap at one end is the detail that makes a wall look amateur.
For most walls, yes. A batten tight against each end wall or corner frames the composition and hides the inside corner joint, which is why it’s the standard choice and the calculator’s default.
The exception is a run that dies into trim or turns a corner, where you may want an even gap at the ends instead. That shifts the math — with battens at both ends the spaces are one fewer than the battens; with floating ends, one more — so set the end option before reading the count.
The battens are the vertical strips, and 1x lumber or MDF is standard. A 1×2 is 1½ in wide, a 1×3 is 2½ in, and a 1×4 is 3½ in — nominal names whose actual face width is what the spacing uses.
1×3 is the most popular all-round batten; 1×2 suits a fine, closely spaced look; 1×4 gives a bolder farmhouse feel. Pine and primed MDF are usual for painted work, with the same board used for the rails so everything sits at one thickness.
Add the verticals and horizontals. Verticals are battens × wall height; horizontals are the number of rails (top, bottom, middle) × wall width. Total is the two combined, times the number of identical walls.
For a 12-by-8-foot wall with 9 battens and a top and bottom rail: 9 × 8 = 72 ft of verticals plus 2 × 12 = 24 ft of rails, for 96 linear feet. Divide by board length and round up for boards to buy.
On-center (OC) spacing is the distance from the center of one batten to the center of the next, and it equals the exposed gap plus one batten width. It stays constant across an evenly spaced wall, which makes it the number to lay out with.
Marking on-center means one pencil mark per batten instead of measuring each gap. A 1½-inch batten with a 15.4-inch gap has an on-center of 16.9 inches — mark that off a corner and the battens fall into place.
A middle rail is optional and mostly a style choice. A single band usually runs floor to ceiling with just a top and bottom rail, while a middle rail creates the classic two-tier look — a paneled section below, open wall above, often with a shelf or picture ledge on the rail.
If you add one, it’s another full wall-width run on your linear-foot total. The calculator includes or drops each rail as you toggle it, so you can see the effect on boards and cost before buying.
Add about 10 percent to your linear-foot total for saw kerf, end trimming, and the occasional bowed or split board. Buying whole boards builds in some slack, but a tight count leaves no room for a miscut.
Add more if your wall height falls awkwardly against buyable board lengths — an 8-foot wall from 8-foot boards wastes almost nothing, but a 9-foot height forces 10- or 12-foot stock with a long offcut. The calculator rounds boards up to whole lengths, so check the leftover and adjust the length to cut waste.
Estimation Only — Confirm Measurements and Stock: This calculator spaces battens evenly across the wall width you enter and totals the 1× stock for the vertical battens plus any horizontal rails you select. Board-and-batten is a decorative treatment with no governing code requirement; spacing is an aesthetic choice. Results use the actual face width of the board (a nominal 1×3 is 2½ inches wide), so enter the real width of your stock. Linear-foot and board counts do not include a waste allowance beyond rounding up to whole boards — add your own overage for saw kerf, trimming and defects. Prices shown are whatever rate you enter and are not quotes. Confirm wall measurements, stock lengths and material at your supplier. For estimation purposes only; verify quantities before buying or cutting.