Accent Wall Calculator
Board spacing, board count and cost for a slat wall.
Enter your values
Enter the wall width in in.
Enter the wall height in in.
Enter the board width in in.
Enter the target gap in in.
Enter the price per board in $.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Boards needed
- 32
- Exact gap
- 2.065 in
- Linear feet of board
- 256 ft
- Material cost
- $256.00
- Paint needed
- 0.27 gal per coat
Quick answer
Divide the wall width by the sum of board width and gap to get the number of slats, then adjust the gap so both end margins match.
slats = (wall + gap) ÷ (board + gap)
At a glance
| What it does | Board spacing, board count and cost for a slat wall. |
|---|---|
| Category | Home & DIY |
| Inputs needed | Wall width, Wall height, Board width, Target gap, Price per board |
| Main output | Boards needed |
| Formula | slats = (wall + gap) ÷ (board + gap) |
| Cost | Free — no sign-up, no download |
How to use the Accent Wall Calculator
- 1Measure the wall width and height in inches.
- 2Enter the width of the slat you're using.
- 3Set the gap you want — the calculator evens it out.
Inputs explained
- Wall width(in)
- Enter the wall width in in.
- Wall height(in)
- Enter the wall height in in.
- Board width(in)
- Enter the board width in in.
- Target gap(in)
- Enter the target gap in in.
- Price per board($)
- Enter the price per board in $.
Worked example
Using the values the calculator loads with:
Inputs
- Wall width144 in
- Wall height96 in
- Board width2.5 in
- Target gap2 in
- Price per board8 $
Results
- Boards needed32
- Exact gap2.065 in
- Linear feet of board256 ft
- Material cost$256.00
- Paint needed0.27 gal per coat
Frequently asked questions
What gap looks best on a slat wall?
Equal to or slightly less than the board width; 2 in boards with a 2 in gap is the most common look.
Should I paint before installing?
Yes — pre-paint the wall and boards, then touch up nail holes after installation.
What do I need to enter into the Accent Wall Calculator?
Just 5 values: wall width, wall height, board width, target gap, price per board. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Accent Wall Calculator work out the answer?
Divide the wall width by the sum of board width and gap to get the number of slats, then adjust the gap so both end margins match. It applies the formula slats = (wall + gap) ÷ (board + gap) and shows the working so you can check each step by hand.
Is the Accent Wall Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.