The Difference is Quality at National Custom Hollow Metal and our product lines include TrustShield Lead-Lined doors to keep X-Ray technicians safe, ThermaHold Thermal Doors to prevent cold transfer from outside to the inside, and SoundSafe Sound Transmission Control (STC) Doors to maintain confidentiality and eliminate noise pollution in the workplace. And our DefendDoor line of stainless steel doors and frames has been our top-selling product from day one. Call us or email us whenever you’re ready for a same-day quote!