STC Acoustical Access Door
STC
STC Acoustical Access Door
STC
An access panel is usually the weakest point in an acoustically rated wall. The Karp STC is built so it isn't: a 20 gauge steel door over 2 3/8 in. of acoustical insulation, sealed by a full-perimeter neoprene gasket that a keyed compression latch pulls tight. Independently tested and rated STC 64.
| Door Size H × W (in.) |
Door Size H × W (mm) |
Wall/Ceiling Opening H × W (in.) |
No. of Stud Catches/Latches |
Shipping Wt. (lbs.) |
Shipping Wt. (kg.) |
|---|---|---|---|---|---|
| 12 x 12 | 305 × 305 | 12 3/8 × 12 3/8 | 1 | 6.3 | 2.9 |
| 18 x 18 | 457 × 457 | 18 3/8 × 18 3/8 | 1 | 10.5 | 4.8 |
| 24 x 24 | 610 × 610 | 24 3/8 × 24 3/8 | 2 | 16.0 | 7.3 |
Spec Sheet / CAD Files
Download the architectural specification sheet and CAD drawings for this product.
Construction
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16 gauge steel frame, 20 gauge steel door
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2 3/8 in. acoustical insulation; 2.40 in. door depth, 2.60 in. total assembly depth
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3/8 × 1/8 in. closed-cell neoprene gasket around the full perimeter
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Keyed lift-and-turn compression latch, chrome finish with chrome cup sealing gasket
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Continuous piano hinge
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One-piece 1 in. wide trim
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Rust-inhibitive electrostatic powder prime coat with baked white enamel
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Also available in stainless steel with a No. 4 finish
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Independently tested to ASTM E1332, ASTM E90 and ASTM E413
Where it's used
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Recording studios, broadcast suites and rehearsal rooms
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Mechanical and plant rooms adjoining occupied space
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Hotel corridors and guest room demising walls
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Hospitals, consulting rooms and spaces with speech privacy requirements
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Classrooms, lecture theatres and examination rooms
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Tenant demising walls where the wall's rating must carry through the panel
Choosing a size
The wall opening is the door size plus 3/8 in. — a 24 × 24 in. door needs a 24 3/8 × 24 3/8 in. opening. Overall trim dimension is the door size plus 2 in. in each direction, so allow for that on the finished face. Specify the smallest door that still gives working access to the equipment behind it: every extra square inch of panel is extra area for sound to pass through. Special sizes are available on request.