Wall vents

Two ways to finish a wall opening, both all-metal, both in the same eleven sizes.

Flush wall vents mud into the drywall and take paint, so the vent disappears into the wall completely. Best on a wall that is already being finished.

Framed wall vents surface-mount over the existing hole in minutes — no mud, no tape, no sanding. Best on a wall you do not want to touch.

Flush vs framed compares them side by side.

Supply, return and exhaust

Wall vents do three different jobs and they are not interchangeable. Supply vents push conditioned air into the room and are usually 3x10 or 4x10. Returns pull air back and are much larger — 6x14, 8x14, or a 10x30 on a trunk drop. Exhaust is its own thing again: our 14x14 exhaust mount covers fan housings from 8x8" to 10.5x10.5".

Not sure which one you are looking at? Supply vs return air vents tells them apart in about thirty seconds.

Basements and finished spaces

Basement renovations are where the mixed-size problem shows up worst — a supply run, an oversized return and a bathroom exhaust in one room, usually in three different grille styles. Everything here comes in one finish across all eleven sizes. See finished basement vents and basement bathroom ideas.

Sizing

Measure the bare duct opening, not the old cover. Framed size guide · flush size guide · wall vent cover sizes explained.

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