Acoustic panels are sold per piece in fixed widths, so it comes down to fitting the wall width into the panel width. Here's the quick method.
Acoustic panels are typically 600 mm wide. Panel count = wall length in mm ÷ 600, rounded up. Pick a panel height that covers the full wall height to avoid horizontal joins. Add 10 % for waste.
Panels sit side by side across the wall. With 600 mm wide panels each covers 0.6 m of width – so a 4 m wall needs 4000 ÷ 600 = 6.67, i.e. 7 panels.
If the wall is taller than the panel, you need extra rows stacked on top. So it's smartest to buy a panel height (2400, 2440, 2750 or 3000 mm) that's at least your wall height.
For adhesive, plan around 1 tube per 1.5–2 m² of panel. On uneven walls, or if the panels need to come down again, screw them to vertical battens instead.
A 4 × 2.4 m wall is 9.6 m². With 600 × 2400 mm panels that's 7 panels across (1 row). With 10 % waste it's 8 panels. Plus about 6 tubes of adhesive (9.6 ÷ 1.75).
Enter your own measurements and panel size to see the exact panel count and tubes of adhesive.
Most are 600 mm wide (some 580 mm). The width decides how many panels you need across the wall.
About 1 tube (300 ml) per 1.5–2 m² of panel. Always follow the manufacturer's instructions on the tube.
Yes, but a slat ripped lengthways rarely looks good. Plan the layout so full panels stay visible and the cut lands in a corner.
Wooden slats don't suit wet rooms or direct moisture. Use them in living rooms, offices, bedrooms and home cinemas.
Keep going with one of these – they pair well with what you just read.
Install acoustic panels
How to measure, plan and fit acoustic wall panels – with adhesive or battens, and no ugly joins.
Read guide →Wall paneling material list
Complete material list for wall paneling with boards or panels – from calculation to checkout.
Read guide →Deck project from start to finish
Step-by-step guide to planning and building a deck. Measuring, materials, budget and mistakes.
Read guide →Drywall calculator
Calculate the number of drywall sheets or panels for walls or ceilings.
Open calculator →Paint calculator
Calculate litres of paint for walls and ceilings based on area and coverage.
Open calculator →Insulation calculator
Calculate insulation packs for ceilings, walls or floors.
Open calculator →Create a free account and explore all features with a complete sample project.
No credit card required. Free sample project included.