Mills & Nebraska Architectural Products

    FramesSince 1933

    Standard Welded Frames

    Mills & Nebraska fabricates welded hollow metal door frames in Orlando for new commercial construction across Florida, from standard openings to fire-rated and hurricane-rated assemblies.

    • Fire 20 min to 3 hr
    • Hurricane-Rated assemblies
    • Gauge 14 to 18
    Request a QuoteTalk to a specialistat (866) 304-DOOR (3667)
    • Delivery by our own fleet across Florida
    • Orlando & Lakeland, FL
    Standard Welded Frames supplied by Mills & Nebraska

    Overview

    About Standard Welded Frames

    A welded frame is a hollow metal door frame with factory-welded head and jamb corners, producing a rigid one-piece frame that is set in place before or during wall construction. Welded frames are the standard choice for new commercial construction.

    Each frame is built to the project's door and hardware schedule, so profiles, preps and anchors are set before the frame leaves the shop rather than adjusted on the jobsite.

    A welded frame carries a fire or wind rating only as part of an assembly with a rated door and hardware.

    How to choose

    Use 16 gauge for most commercial openings and 14 for heavy-use, exterior, security or oversized openings. Confirm the wall type and anchors, jamb depth, hardware preps and fire rating before fabrication, since changes to a welded frame afterward are difficult.

    In Florida
    Because frames are fabricated, prepared and labeled in the same Orlando facility, rated frames do not ship from an out-of-state plant or wait on an outside labeling service before they reach Florida jobsites.

    Features

    What's included

    • Anchors for masonry, steel stud and wood stud walls
    • Borrowed lites, sidelites and transoms
    • Hardware preps and silencer holes
    • Prime painted finish

    Ratings

    Ratings and approvals

    Fire rating

    20 min to 3 hr

    Rigid frames for stairs, corridors and elevator lobbies

    See fire-rated doors & frames

    Hurricane and wind

    Frames for wind-rated hollow metal assemblies

    Anchor type and spacing per the approval

    See hurricane-rated doors & frames

    Standards, testing and code

    • SDI
    • UL 10C
    • NFPA 80
    • NFPA 252
    • FEMA 361
    • Florida Building Code, 8th Edition (2023)
    • Florida Fire Prevention Code

    Applications

    Where it's used

    Brands we provide for standard welded frames

    • Ceco Door logo
    • Curries
    • Steelcraft
    • De La Fontaine logo
    View All Vendor Partners →

    FAQs

    Standard Welded Frames FAQs

    Have a question about a specific opening? Call (866) 304-DOOR (3667)

    What is the difference between welded and knock-down frames?

    A welded frame arrives as one rigid piece and is set as the wall goes up. A knock-down frame ships in pieces and is assembled on site, usually around a finished drywall opening, which suits renovations and tenant improvements.

    How is a welded frame anchored to the wall?

    The anchor follows the wall type. Masonry anchors are built into block walls as they go up, stud anchors fasten the jambs to steel or wood studs, and floor anchors secure the foot of each jamb. Our team confirms the wall type before fabrication so the right anchors are welded in.

    Can a welded frame have a higher fire rating than its door?

    Yes. A frame labeled for a higher rating can be used with a lower-rated door, and the opening is then rated at the lower of the two. What matters is that the door, the frame and the hardware each carry at least the rating the opening requires.

    What is positive pressure fire testing?

    Positive pressure testing to UL 10C places the neutral pressure plane no more than 40 inches above the sill, so heat and flame push outward through the gaps around most of the door, as they do in a real fire. The Florida Building Code requires swinging fire doors to be tested this way, and the frame, door and hardware must be listed for it.

    Get a quote for standard welded frames

    Send us your drawings or door schedule. Our team responds within 24 business hours with lead times, submittals and Florida code requirements for your openings.

    Request a Quote(866) 304-DOOR (3667)
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