Table 7: Comparison of Noise Reduction Characteristics
of Plexiglas® Sheet
With Other Materials

Construction Material

Approximate dB (A)
Noise Reduction*

Plexiglas® Sheet (0.118")
Plexiglas® Sheet (0.236")
Plexiglas® Sheet (0.472")
Plexiglas® Sheet (0.944")
Double Glazed Plexiglas® Sheet
Glass (1/8")
Glass (1/4")
Plywood (1")
Steel (1/8")
Sheet Lead (1/16")
Wood Stud Partition

25
29
33
35
38
25
27
26
37
38
38
*Noise reduction obtained from enclosures is dependent upon the completeness of the enclosure, tightness of joints, etc. The above dB(A) noise reductions represent complete, absolutely tight enclosures without any openings, large or small. These conditions are seldom achieved; however, rarely are they required to reduce noise sources to below hearing damage criteria. The main purpose of this table is to indicate the noise reduction capabilities of commonly used materials in terms of dB(A).