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hollow metal door painted black with sidelites

COMMERCIAL METAL DOOR FRAMES

Durable commercial door frames for wood, metal, interior, exterior, and fire-rated openings.

Commercial door frames provide the strength and support needed for wood and metal door openings. They are commonly used in offices, schools, warehouses, healthcare facilities, retail buildings, and industrial spaces.

Available options include welded frames, knock-down frames, sidelites, transoms, borrowed lites, double door frames, fire-rated frames, and commercial hardware prep.

welded frame

Welded Frames

Heavy duty welded frames for long-term performance

Knock Down Metal Door Frames

Knock Down (KD) Frames

Flexible frame options for easy installation

Hollow Metal Sidelite Frames

Sidelites

Frame option that adds glass beside the door opening

Hollow Metal Transom Frames

Transoms

Frames for glass or panel openings above the door

Borrow Lites

Interior frame options to add visibility between spaces

Double Door Frames

Durable frame option built for paired door openings

Designed for institutional, commercial or industrial applications Doors Unlimited provides a full line of hollow metal frames for virtually any wall condition or entryway requirement.  When you need a fixed window for a sight line or to allow light to enter one room form another. A borrowed lite, sidelite or transom will do the trick. Whatever your elevation looks like, let us know and our in-house fabrication shop will weld it to your specifications. (glass by others)

Although we stock Steelcraft hinge locations, we have the ability to procure other hinge location frames in days, not weeks. 

What's My Rough Opening?

Find what your rough opening would be here: Rough Opening Sizes

fire rated doors for a school classroom

Door Frame Applications

Commercial door frames are commonly used in:

  • Offices
  • Schools
  • Warehouses
  • Healthcare facilities
  • Retail buildings
  • Apartments
  • Hotels
  • Government buildings
  • Corridors
  • Utility rooms
  • Exterior entrances

Door frames can be used with wood doors, hollow metal doors, fire-rated doors, glass lite kits, louvers, and commercial hardware.

Knock Down (KD) Metal Door Frames

A knock down metal door frame is easy to assemble and used for commercial/industrial spaces. Made of metal, it is sturdy as well as wear-resistant. Additionly, comes in pieces and can be easily assembled on-site, lowering transportation costs and saving time. Screws and brackets hold it together and it can be adjusted to fit the door’s size.

Knock Down Metal Door Frames
Welded Metal Door Frames

Welded Metal Door Frames

A welded metal door frame encases and also supports a door, providing durability and resistance to wear, weather, and heavy use in residential, commercial and industrial buildings. It’s fire-resistant, secure and ensures proper functioning and safety of the door system.

Hollow Metal Transom Frame

A hollow metal transom frame supports windows or doors above openings. It consists of a horizontal transom, two vertical posts, and is hollow for easy glass installation. It’s also commonly used in commercial and industrial buildings for safety and sturdiness.

Hollow Metal Transom Frames
Hollow Metal Sidelite Frames

Hollow Metal Sidelite Frame

A hollow metal sidelite frame is a robust type of door frame for narrow windows, made of steel or aluminum with an interior cavity for wiring. Standard sizes and finishes are available, or also customization is an option. Ideal for commercial or industrial settings because of it’s durability and ease of installation.

Hollow Metal Borrow Lite Frame

A hollow metal borrow lite frame is a commercial door frame made of steel with a hollow center, making it lightweight yet strong. It’s ideal for fire-rated doors as it can withstand high temperatures without warping. It’s popular because it’s versatile and easy to install, coming in different sizes and designs to fit different doors. Often used in public buildings like schools and hospitals, it’s ideal where security and safety is a top priority.

Hollow Borrowed Lite Frames

Why Choose Commercial Metal Doors?

Commercial door frames are built for durability, proper fit, and long-term performance in high-traffic buildings. They help support the door, improve security, and keep the opening aligned.

Key benefits include:

  • Strong commercial construction
  • Fire-rated options
  • Works with wood and metal doors
  • Interior and exterior use
  • Custom sizes available
  • Hardware-ready designs
  • Welded and knock-down options
  • Sidelite, transom, and borrowed lite options
 
 

Build Your Metal Frame Quote

In House Fabrications

Our full-service welding and fabrication shop handles all your custom metal needs. Making Doors Unlimited Shop your top choice for its one-stop-shop advantage.

Offering custom hardware prep, welding, sidelites, transoms & borrow lites as well as windows.