Knock-down and specialty door systems

Knock-Down Door Systems

Therm-All offers knock-down door systems for metal building doors, existing opening doors, special sized doors and unique applications.

Standard knock-down packages include:

  • 8-1/4″ 16 gauge galvanized frame with 2″ header
  • 20 gauge galvanized insulated leaf (18 gauge on 4070)
  • Standard commercial lever lockset
  • Threshold / sweep / weatherstrip
  • Ball-bearing non-removable pin hinges
  • All required fasteners

Options available:

  • Rim panic exit devices
  • Closers
  • Lite kits (installed)
  • Girt clips (pre-engineered building installation)
  • Mortise levers


Specialty Door Systems

Therm-All offers a variety of specialty door products, including:

  • Interior doors
  • Blast resistant doors
  • Special sized doors
  • Doors for unique applications


If you are looking for a door product that is difficult to find, we can likely take care of your need. Call your Therm-All representative, dial 888-2-INSUL-8, or send an email to for more information about our specialty door offerings.