Learning center / Acoustics by building type / Restaurant

Wall acoustics for dining rooms

How walls behave acoustically in dining rooms and how to treat them with panels.

2 minute read · Updated Nov 2026

Walls in dining rooms are usually drywall, block or glass, all of which reflect almost all of the sound that reaches them. Assembly occupancy: Class A finishes; near food service choose a cleanable face.

Treat reflection points first

A reflection point is a spot on a wall where sound from a source bounces to a listener. You can find them with a mirror: sit where people listen, have someone slide a mirror along the wall, and mark each spot where you can see a sound source. Panels there give the biggest improvement per square foot.

Parallel walls and flutter echo

Two bare parallel walls make a fast, buzzing echo when you clap. One panel on each wall, offset from each other, usually stops it. See flutter echo between drywall walls.

Recommended wall products

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If the wall needs to block sound too

Panels do not add meaningful STC to a wall. If sound coming through the wall is a problem, read soundproofing and STC for dining rooms and what STC means.