Free · no sign-up · works on your phone
Wall panels, without the maths.
Shiplap is what we do today. Measure your wall, pick a board style, and get the rows, the boards and the cost while you are still holding the tape measure. No formulas to remember, no engineering drawings, no ten-field form.
Everything is calculated in your browser. Nothing is uploaded, stored or sold.
Pick the calculator that matches your job
Same engine underneath, different defaults and different questions answered on the page.
Wall
Shiplap wall calculator
Rows, boards and a shopping list for any flat wall.
Open calculator →Ceiling
Shiplap ceiling calculator
Same maths, tuned for ceilings and sloped rooms.
Open calculator →Accent wall
Accent wall calculator
The TV wall every design photo has, measured properly.
Open calculator →Cost
Shiplap cost calculator
Budget first: boards, nails, glue and the total.
Open calculator →UK
UK shiplap calculator
Metres, 2.4 m boards and £ pricing.
Open calculator →Need a board count for something else?
Board-and-batten, T&G and shiplap all behave the same way horizontally. Use the wall calculator and pick the closest board width. Drywall and board-and-batten get their own calculators next.
How the numbers are worked out
No black box. Three steps, all of them checkable with a tape measure and a calculator.
- 1
Rows
Wall height ÷ the visible face of a board. A 1x6 is 5-1/2 in on a tape, not 6 in — take the nickel gap off and an 8 ft wall rounds up to 18 rows.
- 2
Boards
Rows × wall length gives linear feet. Offcuts get reused across rows, then 10% is added and the result rounds up to whole boards.
- 3
Budget
Boards × the price you type in, plus brads and adhesive. Change any number and every figure on the page updates instantly.
Built for people who have never done this before
- Three inputs to start. Everything fiddly — waste, gaps, windows — is behind one collapsed drawer.
- A real preview, not a spreadsheet: you can see the red rip-cut row before you buy anything.
- A shopping list in the exact wording you can paste into a store search or send to your partner.
- Feet or metres, switchable at any time without retyping your measurements.
- No account, no email, no cookie wall. The calculator is the whole product.
- Every number is transparent — you can redo any of it on a scrap of paper.
A note on the affiliate links
The buy buttons next to each shopping-list line are affiliate links. If you buy through them, the retailer pays us a small commission and the price you pay is unchanged. That commission is the only reason the calculators are free and not full of banner ads. It never affects the numbers, and we are not paid to recommend a particular board.