Perforated Deep-Textured Metal

Now Excellent Acoustical Performance Can be Achieved in Metal

With the increasing popularity of perforated metal, the demand to add visual interest and strength has led many to request deep texturing. Deep-textured perforated metal meets the demands of acoustics, while enhancing the visual interest that only metal can deliver. The enhanced look with the texture creates a softer glow and specular reflections. When panel systems are desired, attachment systems can be added without compromising acoustic performance or visual appeal for both ceilings and walls. Contact us to discuss the wide variety of possibilities with deep-textured perforated metals.

  • 304 Stainless Steel
  • 2B Finish
  • 20 gauge (.036")
  • Perf - .066" diameter round on .109" (60 staggered) spacing with 33.09% open area.
  • Current patterns available: 1UN*, 6WL®, 1NA®, 1RL, 2FL, ACC4i

*Special Note: Because of the boldness of 1UN's pattern depth, it cannot be easily break formed (bent to sharp corners). Designers should keep this in mind when designing with pattern 1UN and consult with Rigidized® Metals about fabrication techniques for your specific application.


Good Looks in All Lights

The rich look of fabric with the specular highlighting of deep textured stainless steel.


Panel Systems

When panel system are desired attachment systems can be added without compromising acoustic performance.

Z-clip attachment
Retains acoustic transparency
Custom configurations available


Acoustic Testing

Rigidized® Metals has tested the 6WL® and 1RL patterns on perforated stainless steel with both 1/2" and 1" deep acoustic insulation.

Test Methods: The following tests were conducted in full accordance with the American Society of Testing and Materials (ASTM) method C 423-09a, "Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method".

C 423-09a: The specimen was tested in a Type A mounting, as defined by ASTM Practice E 795-05. Samples were laid directly onto the floor; since these products had finished edges, no additional framing was used.

C 423: The detailed results of the tests, including third octave band absorption data, the Sound Absorption Average (SAA), and Noise Reduction Coefficient (NRC) single number ratings, are presented here. Testing was at 27ºC, 47% relative humidity and 83.0 kPA ambient pressure.

  Absorption Coefficient Α(A/m2)
Frequency (Hz)

Perforated 6WL®

1/2" Acoustical Mat

Perforated 1RL

1/2" Acoustical Mat

Perforated 6WL®

1" Acoustical Mat

Perforated 1RL

1" Acoustical Mat

1000.12-0.04-0.10-0.05
1250.060.040.090.08
1600.090.040.150.13
2000.090.080.170.21
2500.140.130.220.27
3150.200.200.420.46
4000.270.280.550.61
5000.380.400.730.76
6300.480.460.790.83
8000.590.580.860.92
10000.680.690.940.98
12500.730.770.981.02
16000.800.831.021.07
20000.860.891.011.07
25000.880.881.011.06
31500.890.891.001.03
40000.900.880.951.02
50000.860.850.890.96
SAA0.510.520.730.77
NRC0.500.550.750.75

Six Deep Textured Perforated Patterns