National Custom Hollow Metal

Use beautiful Google Web Fonts to individualize your site and add character to your content.

Whether an office building is in the middle of downtown, in the suburbs, or a more secluded location, noise can have adverse effects on employee comfort and health. Traffic noise frequently exceeds 70 adjusted decibels (dBA), which can cause permanent hearing loss, and many workplaces are full of ringing telephones and noisy machinery. Our team at National Custom Hollow Metal understands that employees are more comfortable and productive in a quiet work environment, and we’re ready to manufacture Sound Safe Sound Transmission Control (STC) doors and frames to keep your meeting private and secure!

Read More

The world has become a much noisier place, and we frequently encounter decibel levels of up to 70 dB each time we step outside on an average day. Today’s city dwellers have grown so accustomed to ambient noise they can tune out just about anything except the conversation they’re having with the people around them, but even the most focused professionals will tell you that they still need plenty of quiet time to think and work without distractions. Fortunately, our team at National Custom Hollow Metal can manufacture Sound Transmission Control (STC) doors and ship them anywhere in the USA on your schedule.

Read More