Plan your wall panelling layout before you cut. Enter your wall size, batten width and preferred style to calculate equal spacing, cut lengths, material quantity and a printable fitting guide.
Free access lets you fully test every style and setting on a wall with up to 8 panels/slats (and 2 rows for shaker) — enough to check the maths and see a real preview before you commit. Full access removes that limit and adds a polished printable fitting guide, a downloadable report, and an offline copy of the tool.
Wall & units
Panelling style
Spacing & borders
Panels & rows
Material & cost
Kerf is always entered in mm (a typical saw blade removes 2–4mm per cut). Price per length is optional — add it to get a cost estimate.
Obstructions
Save your work
Full access
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Positions from left edge
| Piece | Length | Quantity |
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This wall panelling calculator works out equal spacing, rail positions and a full cut list for the three most popular DIY panelling styles: shaker-style grid panelling, board and batten, and vertical slat walls. Enter your wall size and a few preferences, and it handles the maths that normally takes a pencil, a calculator and a couple of false starts — including material quantities and a cutting plan that accounts for your blade's kerf.
Built for homeowners and renters planning a feature wall, hallway or bedroom panelling project themselves, as well as tradespeople who want a quick, reliable second opinion on spacing and material quantities before pricing up a job. If you've ever stood in the timber aisle unsure how many lengths of MDF or softwood to buy, this is for you.
Yes. Switch between shaker (grid) panelling, board and batten, and vertical slat wall at the top of the calculator, and every measurement updates for that style.
Add it as an obstruction with its position and width. The calculator flags any batten, stile or slat that would land on top of it, so you can adjust your spacing before you cut anything.
Kerf is the width of material your saw blade removes with every cut. Entering it means your cutting plan accounts for that loss, so you don't come up short on your last length.
Yes. Switch units at any time from the dropdown and every measurement, from wall size to individual cut lengths, converts automatically.
Yes. Enter your stock length and it works out a full cut list, groups matching lengths together, and tells you how many lengths to buy plus the expected offcut waste.
Everything — every panelling style, every setting, obstructions, units and the live preview — on a layout of up to 8 panels or slats (and 2 rows if you're using shaker). That's enough to fully test the calculator's accuracy on a real wall before buying. Full access removes that limit and adds the printable fitting guide, downloadable report and offline copy.
Disclaimer: This tool is a planning guide only. Always check your wall measurements, skirting, sockets, uneven walls and material thickness before cutting or fitting.