People living and working in urban communities understand that the price of big-city convenience is dealing with large crowds and traffic jams at the beginning and end of each day. Suburban areas can also get crowded, and our only choice seems to be to learn how to be more patient and tune out the cacophony of noise we encounter everywhere we go. But that’s not good enough in certain situations, and National Custom Hollow Metal proudly offers custom-built Sound Transmission Control (STC) doors with superior noise reduction capabilities!
