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Metal Perforations


Presenting a complete line of perforation options for these USG systems: Celebration Metal Ceiling System, Curvatura 3-D System, Geometrix Metal Ceiling Panels and Panz Metal Ceiling System. All samples are 6″×6″. When ordering, please refer to the pattern number for perforation samples (for example, “A062”).

To order custom perforation patterns, contact your local Sales Representative or fax your information to the USG Specialty Solutions Group at 440 892.7173.

  Pattern Number Perforation Pattern Open Area %
Standard Perforations A062(1,2) Round 1/16″ Perforations, .25″ o.c. 5%
A188(2) Round 3/16″ Perforations, 1″ o.c. 3%
H250(2) Round 1/4″ Perforations, .32″ o.c. 58%
C375(2,3) Round 3/8″ Perforations, 1.125″ o.c. 9%
D250(2,3) Square 1/4″ Perforations, .75″ o.c. 11%
D375(2,3) Square 3/8″ Perforations, 1.125″ o.c. 11%
D500D(2) Square 1/2″ Perforations, .595″ o.c. 70%
A116 Round 15/128″ Perforations, .354″ o.c. 17%
A250 Round 1/4″ Perforations, .5″ o.c. 39%
A500(4) Round 1/2″ Perforations, .848″ o.c. 55%
B079 Round 5/64″ Perforations, .312″ o.c. 6%
B125 Round 1/8″ Perforations, .375″ o.c. 10%
B188A Round 3/16″ Perforations, .312″ o.c. 33%
B197 Round 13/64″ Perforations, .316″ o.c. 35%
B250 Round 1/4″ Perforations, .437″ o.c. 30%
B312 Round 5/16″ Perforations, .437″ o.c. 46%
B500(4) Round 1/2″ Perforations, .600″ o.c. 63%
C062(3) Round 1/16″ Perforations, .351″ o.c. 2%
C062A(3) Round 1/16″ Perforations, .175″ o.c. 10%
C116 Round 15/128″ Perforations, .344″ o.c. 8%
C250A Round 1/4″ Perforations, .65″ o.c. 12%
C188 Round 3/16″ Perforations, 1.414″ o.c. 1%
C500 Round 1/2″ Perforations, 1.5″ o.c. 9%
D500 Square 1/2″ Perforations, 1.5″ o.c. 17%
  1. Celebration, Curvatura 3-D and Panz systems; available for quick delivery.
  2. Curvatura System (2′×2′) available for quick delivery in these patterns only.
  3. Standard for Geometrix.
  4. Do not use with One-Directional Curvatura System.

Perforation patterns shown at 50% of actual size. When ordering, please refer to the pattern number for perforation samples (for example, “A062”).


  Pattern No. A062 Pattern No. A188 Pattern No. H250
Standard Perforations Perforation Pattern A062 Perforation Pattern A188 Perforation Pattern H250
Round—1/16″ perforations Round—3/16″ perforations Round—1/4″ perforations
.25″ o.c., 5% open area 1″ o.c., 3% open area .32″ o.c., 58% open area
Pattern No. C375 Pattern No. D250 Pattern No. D375
Perforation Pattern C375 Perforation Pattern D250 Perforation Pattern D375
Round—3/8″ perforations Square—1/4″ perforations Square—3/8″ perforations
1.125″ o.c., 9% open area .75″ o.c., 11% open area 1.125″ o.c., 11% open area
Pattern No. D500D Pattern No. A116 Pattern No. A250
Perforation Pattern D550D Perforation Pattern A116 Perforation Pattern A250
Square—1/2″ perforations Round—15/128″ perforations Round—1/4″ perforations
.595″ o.c., 70% open area .354″ o.c., 17% open area .5″ o.c., 39% open area
Meets NFPA for sprinklers above    
Pattern No. A500 Pattern No. B079 Pattern No. B125
Perforation Pattern A500 Perforation Pattern B079 Perforation Pattern B125
Round—1/2″ perforations Round—5/64″ perforations Round—1/8″ perforations
.848″ o.c., 55% open area .312″ o.c., 6% open area .375″ o.c., 10% open area
Not to be used with the One-Directional Curvatura System    
Pattern No. B188A Pattern No. B197 Pattern No. B250
Perforation Pattern B188A Perforation Pattern B197 Perforation Pattern B250
Round—3/16″ perforations Round—13/64″ perforations Round—1/4″ perforations
.312″ o.c., 33% open area .316″ o.c., 35% open area .437″ o.c., 30% open area
Pattern No. B312 Pattern No. B500 Pattern No. C062
Perforation Pattern B312 Perforation Pattern B500 Perforation Pattern C062
Round—5/16″ perforations Round—1/2″ perforations Round—1/16″ perforations
.437″ o.c., 46% open area .600″ o.c., 63% open area .351″ o.c., 2% open area
  Not to be used with the One-Directional Curvatura System  
Pattern No. C062A Pattern No. C116 Pattern No. C250A
Perforation Pattern C062A Perforation Pattern C116 Perforation Pattern C250A
Round—1/16″ perforations Round—15/128″ perforations Round—1/4″ perforations
.175″ o.c., 10% open area .344″ o.c., 8% open area .65″ o.c., 12% open area
Pattern No. C188 Pattern No. C500 Pattern No. D500
Perforation Pattern C188 Perforation Pattern C500 Perforation Pattern D500
Round—3/16″ perforations Round—1/2″ perforations Square—1/2″ perforations
1.414″ o.c., 1% open area 1.5″ o.c., 9% open area 1.5″ o.c., 17% open area