STC (Acoustical)

Music Mixing Board with Door

Take control of your environment and reduce unwanted noise with Republic's acoustical (STC rated) doors and frames. Acoustical performance of building products, components, and systems is an important consideration for engineers, specifiers, and building owners. This is especially true in highly populated cities, areas around highways, railroads, airports, and high density residential zones. The demand for efficient noise control in these areas is rising constantly.

  • SDI levels 3-4
  • STC up to 52
  • Certified ASTM E90 and ASTM E413
Music Mixing Board with Door

Republic Provides:
  • Single Doors up to STC 52
  • Pairs of Doors up to STC 47
  • 6 Panel STC 40 Doors
  • Gasketing packages included
Hardware Packages Included:
STC 48, 50, and 52
STC 40, 42, 43, 47
Brochure (PDF) Tech Data (PDF) Tech Data

STC Doors and Frames Technical Data

STC Eco 40, 42, 43, and 47 Doors
  • Thickness: 1 3/4 inch (+/- 1/16 inch)
  • Actual Door Size: Door undersized from nominal by 1/4 inch width and 1/2 inch in height. Standard undercut is 3/8 inch. Undercut contingent on threshold.
  • Hinge Rail and Reinforcement: Hinge edge is non-beveled and reinforced with continuous 16 gage steel channel projection welded to each skin at a maximum of 5 inches on center. Hinge channels have an additional 9 gage reinforcement at each hinge location, providing over 3/16 inch reinforcement (Backset 1/4 inch).
  • Lock Rail: Lock edge is non-beveled and reinforced with a continuous 16 gage steel channel. 16 gage reinforcements for mortised or cylindrical locks are of an integral type in accordance with ANSI A115 standards.
  • Top Channel: Top channel is flush 16 gage channel, projection welded at a maximum of 2 1/2 inches on center
  • Bottom Channel: Bottom channel is a flush 16 gage channel, projection welded at a maximum of 2 1/2 inches on center
  • Core: Special Sound Core
  • Face Skin: Cold Rolled Steel, A60 Galvannealed or G90 Galvanized 16 gage
  • Closer Reinforcement (Required): 14 gage standard or optional 12 gage
  • Size Availability: Maximum 4 feet x 8 feet (4'0" x 8'0")
  • SDI 100 Grade / Model: Grade 3 / Model 1-2 (Physical Performance Level A)
  • Edge Seam Construction: Visible edge seam standard or optional intermittently welded or continuously welded edge seam
  • Universal Standard / Heavy Weight Hinge: Hinge fillers are used allowing for an easy modification from standard to heavy weight hinge preparation. (4 1/2 inch hinges standard)
  • Handing Design: Non-Handed standard or optional handed design
  • Lite Kits: Consult Factory
STC 40 6-Panel Embossed Doors
  • Thickness: 1 3/4 inch (+/- 1/16 inch)
  • Hinge Rail and Reinforcement: Hinge edge is non-beveled and reinforced with continuous 16 gage steel channel projection welded to each skin at a maximum of 5 inches on center. Hinge channels have an additional 9 gage reinforcement at each hinge location, providing over 3/16 inch reinforcement (Backset 1/4 inch).
  • Lock Rail: Lock edge is non-beveled and reinforced with a continuous 16 gage steel channel. 16 gage reinforcements for mortised or cylindrical locks are of an integral type in accordance with ANSI A115 standards.
  • Top Channel: Top channel is flush 16 gage channel, projection welded at a maximum of 2 1/2 inches on center
  • Bottom Channel: Bottom channel is a flush 16 gage channel, projection welded at a maximum of 2 1/2 inches on center
  • Core: Mineral Fiberboard Core
  • Face Skin: 16 gage A40 Galvannealed
  • Closer Reinforcement (Optional): 14 gage standard or optional 12 gage
  • Size Availability: Maximum 3 feet 6 inch x 8 feet (3'6" x 8'0")
  • SDI 100 Grade / Model: SDI 100 Grade / Model - Grade3 / Model 1-2 (Physical Performance Level A
  • Edge Seam Construction: Visible edge seam standard or optional intermittently welded or continuously welded edge seam
  • Universal Standard / Heavy Weight Hinge: Hinge fillers are used allowing for an easy modification from standard to heavy weight hinge preparation. (4 1/2 inch hinges standard)
  • Handing Design: Non-Handed standard or optional handed design
STC 48 Doors
  • Thickness: 1 3/4 inch (+/- 1/16 inch)
  • Actual Door Size: Door undersized from nominal by 1/4 inch width and 3/8 inch in height. Standard undercut is 1/4 inch. Undercut contingent on threshold.
  • Hinge Rail and Reinforcement: Hinge edge is non-beveled and reinforced with continuous 16 gage steel channel projection welded to each skin at a maximum of 5 inches on center. Hinge channels have an additional 9 gage reinforcement at each hinge location, providing over 3/16 inch reinforcement (Backset 1/4 inch).
  • Lock Rail: Lock edge is non-beveled and reinforced with a continuous 16 gage steel channel. 16 gage reinforcements for mortised or cylindrical locks are of an integral type in accordance with ANSI A115 standards.
  • Top Channel: Top channel is flush 16 gage channel, projection welded at a maximum of 2 1/2 inches on center
  • Bottom Channel: Bottom channel is a flush 16 gage channel, projection welded at a maximum of 2 1/2 inches on center
  • Core: Special Sound Core
  • Face Skin: Cold Rolled Steel, A60 Galvannealed or G90 Galvanized 16 gage
  • Closer Reinforcement (Required): 14 gage standard or optional 12 gage
  • Size Availability: Maximum 4 feet x 8 feet (4'0" x 8'0")
  • SDI 100 Grade / Model: Grade 3 / Model 2 (Physical Performance Level A)
  • Edge Seam Construction: Intermittently welded edge seam (standard) or continuously welded edge seam (optional)
  • Universal Standard / Heavy Weight Hinge: Hinge fillers are used allowing for an easy modification from standard to heavy weight hinge preparation. (5 inch hinges standard)
  • Handing Design: Non-Handed standard or optional handed design
  • Lite Kits: Consult Factory
STC 50 and 52 Doors
  • Thickness: 1 13/16 inch (+/- 1/16 inch)
  • Actual Door Size: Door undersized from nominal by 1/4 inch width and 3/8 inch in height. Standard undercut is 1/4 inch. Undercut contingent on threshold.
  • Hinge Rail and Reinforcement: Hinge edge is non-beveled and reinforced with continuous 10 gage steel channel projection welded to each skin at a maximum of 5 inches on center.
  • Lock Rail: Lock edge is non-beveled and reinforced with a continuous 14 gage steel channel projection welded at a maximum of 5 inches on center. Optional beveled lock edge 1/8 inch on 2 inches
  • Top Channel: Top channel is flush 16 gage channel, projection welded at a maximum of 2 1/2 inches on center
  • Bottom Channel: Bottom channel is a flush 16 gage channel, projection welded at a maximum of 2 1/2 inches on center
  • Core: Special Sound Core
  • Face Skin: Cold Rolled Steel, A60 Galvannealed or G90 Galvanized 14 gage
  • Closer Reinforcement (Required): 14 gage standard or optional 12 gage
  • Size Availability: Maximum 4 feet x 8 feet (4'0" x 8'0")
  • SDI 100 Grade / Model: Grade 4 / Model 2 (Physical Performance Level A)
  • Edge Seam Construction: Intermittently welded edge seam (standard) or continuously welded edge seam (optional)
  • Universal Standard / Heavy Weight Hinge: Hinge fillers are used allowing for an easy modification from standard to heavy weight hinge preparation. (5 inch hinges standard)
  • Handing Design: Non-Handed standard or optional handed design
  • Lite Kits: Consult Factory

Universal Rough Opening Calculator

Instructions: Use decimal inches, face dimensions, and nominal opening size for butted application
Result...
× Close

Drywall Rough Opening Calculator

Instructions: Use decimal inches and results are for standard 2 inch face
Width must be number (ex. 99 or 99.99)
Height must be number (ex. 99 or 99.99)
Result...
× Close