Multi-Family Entry Door Systems

34 Noise Reduction Doors Therma-Tru ® Noise Reduction doors provide a commercial level of performance, while providing the look of a residential door system. Ideal for multi-use and urban in-fill projects located near sources of noise pollution, our Noise Reduction doors provide a Sound Transmission Class (STC) rating of up to 36. These ratings provide a standard industry accepted method for comparing the sound reduction effectiveness of door systems.