Panelling Calculator
Thinking about adding wall panelling but not sure how many panels to include or how to space them evenly?
This simple calculator takes the guesswork out of the process so you can design your shaker-style panelling layout with confidence.
How it works
Measure your wall – take the full width in millimetres.
Decide how tall you’d like your panelling, and what width you’d like your battens to be.
Decide how many panels you’d like – the calculator will show you the exact spacing between battens for a balanced look.
Use the results to plan your cuts and layout before fixing anything to the wall.
You can tweak the number of panels to see how the proportions change — ideal if you’re trying to decide between four or five sections, or want to centre a feature like a mirror or radiator.
Disclaimer: This calculator is intended as a planning aid only. Always double-check measurements on site before cutting or purchasing materials.
Need more help?
If you loved the panelling calculator, but would like a little more help with planning your project - or you’d like to try a different style of panelling, then The Complete DIY Panelling Guide is for you!
Transform your walls with confidence. This downloadable bundle includes The Complete DIY Panelling Guide — a 28-page step-by-step guide covering everything from choosing your style to painting your finished wall — and the Cut-List Calculator, which works out exactly how much timber you’ll need for five classic panelling styles.
Perfect for beginners or anyone who’s ever stood in the timber aisle wondering where to start.
✔️ Five panelling styles: Shaker, Board & Batten, Tongue & Groove, Beaded Wainscoting and Shiplap
✔️ Easy-to-follow measuring, cutting and painting steps
✔️ Google Sheet calculator — no maths, no guesswork
✔️ Printable and reusable for every room
Transform your walls with confidence. This downloadable bundle includes The Complete DIY Panelling Guide — a 28-page step-by-step guide covering everything from choosing your style to painting your finished wall — and the Cut-List Calculator, which works out exactly how much timber you’ll need for five classic panelling styles.
Perfect for beginners or anyone who’s ever stood in the timber aisle wondering where to start.
✔️ Five panelling styles: Shaker, Board & Batten, Tongue & Groove, Beaded Wainscoting and Shiplap
✔️ Easy-to-follow measuring, cutting and painting steps
✔️ Google Sheet calculator — no maths, no guesswork
✔️ Printable and reusable for every room