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Frame only  Door slab, hinges and lock hardware are sold separately.

Knock-Down Steel Door Frames16-Gauge Hollow Metal

KD hollow metal door frames that ship flat and assemble on site in finished drywall walls. 16-gauge steel, left or right hand, in 3-3/4", 4-7/8" and 6-1/8" jamb depths to match your wall.

Shop sizes (718) 455-8442
  • 16-gauge steel
  • Ships flat, assembles on site
  • 3 jamb depths for drywall walls
  • Serving NYC since 1924

15 products

What you get

Sold as a frame only

Each listing is the steel door frame only — jambs and head — in your choice of size, handing and jamb depth. The door slab, hinges and lockset are not included. Order them separately or call us for a complete door package.

Included

  • Knock-down steel door frame (2 jambs + head)
  • 16-gauge hollow metal steel
  • Your choice of 3-3/4", 4-7/8" or 6-1/8" jamb depth
  • Your choice of left or right hand

Not included — sold separately

  • Steel door slab
  • Hinges
  • Lockset and cylinder
  • Door closer, panic bar and other hardware
  • Installation (available — call for a quote)

Specifications

Frame specifications

ProductSteel door frame — frame only
TypeKnock-down (KD), 3-piece
Material16-gauge hollow metal steel
Jamb depths3-3/4", 4-7/8", 6-1/8"
Wall typeFinished drywall / metal stud
Nominal widths24" to 36"
Nominal heights80", 84", 96"
HandingLeft hand or right hand
Price$207, any size
DeliveryWarehouse pickup, NYC delivery, LTL freight nationwide

Handing

Left hand or right hand?

Hinges on left = Left Hand
Hinges on right = Right Hand

Stand outside the door, on the side you push from. If the hinges will be on your left, order Left Hand. If they'll be on your right, order Right Hand. Your frame and door must be the same hand. Not sure? Call us and we'll help you confirm before you order.

FAQ

Knock-down frame FAQ

Does a knock-down frame include the door or hardware?

No. These are sold as frames only. The door slab, hinges, lockset and any closer or exit device are sold separately. Pair it with a cylindrical prep slab or a mortise prep slab, add door hardware, or choose a complete KIN steel door unit.

What is a knock-down door frame?

A knock-down (KD) frame comes in three pieces — two jambs and a head — that ship flat and lock together on site. It slips over a finished drywall wall, which makes it the go-to frame for interior renovations and tenant fit-outs. For masonry walls or openings that need a one-piece frame set before the wall goes up, choose a welded frame.

Which jamb depth do I need?

Match the jamb depth to your finished wall thickness. 3-3/4" fits a 2-1/2" stud with one layer of 5/8" drywall per side. 4-7/8" fits a 3-5/8" stud with one layer per side. 6-1/8" fits a 3-5/8" stud with two layers per side. Measure the wall, not just the stud — call us if you're between sizes.

What size frame should I order?

Order the frame by the door size it holds. A 36" x 84" frame fits a 36" x 84" door. We offer 24" to 36" widths in 80", 84" and 96" heights, left or right hand.

Knock-down or welded frame — which is better?

Knock-down frames install after the drywall is up and are easier to ship and handle. Welded frames are one rigid piece set during wall construction and are typical for masonry and high-traffic openings. Both hold a standard steel door slab.

Can you make a custom size frame?

Yes. We fabricate to spec in our New York factory. Contact us for a quote or contractor pricing.

Related

Shop related products

Welded Steel Door FramesOne-piece frames for masonrySteel Door SlabsCylindrical and mortise prepComplete Door UnitsDoor, frame and hardware together

Need a custom frame or a full door package?

We fabricate steel frames and doors to spec in our New York factory and supply complete openings with hardware. Contractor pricing available.

Request a Quote(718) 455-8442