Exterior Steel Door Units — Commercial Door, Frame, Lock & Deadbolt
Exterior Steel Door UnitsDoor, Frame, Lock & Deadbolt
A complete commercial steel door for back doors, service entrances and loading areas: a 20-gauge hollow metal door, a 16-gauge welded or knock-down frame, three self-closing spring hinges, a UFD knob or lever lock and a Grade 2 deadbolt.


Complete Exterior Steel Door Unit
Door, frame, hinges, lock and deadbolt in one package. Choose size, frame and throat depth, then lock, function and swing.

Exterior Steel Door Unit — ready to install
- 20-gauge steel door1-3/4", lock and deadbolt prep
- 16-gauge steel frameWelded 4 7/8" · Knock-down 3 3/4", 4 7/8" or 6 1/8"
- Lock + deadboltKnob or lever · storeroom, entrance or passage
- (3) spring hinges4-1/2" self-closing, satin chrome
Exterior Steel Door Units in Stock Sizes
Nominal door size (width × height, inches). Pick knob or lever here, then choose frame, throat depth, lock function and swing on the product page.
Everything for one secure exterior opening
- 20-gauge hollow metal door1-3/4" thick, flush, factory primed gray, 90-minute fire-rated door
- 16-gauge steel frameWelded (4 7/8" throat) for masonry & block, or knock-down for drywall
- (3) 4-1/2" UL spring hingesSelf-closing, square corner, satin chrome
- UFD knob or lever lockStoreroom, entrance or passage function
- UFD 3501 Grade 2 deadboltSingle cylinder, satin chrome
| 20-ga steel door | $398.48 |
|---|---|
| 16-ga steel frame | $207.00 |
| (3) spring hinges | $50.00 |
| 3501 deadbolt | $20.28 |
| Knob lock 7204 — or — lever lock 7201 | $51.75 / $93.15 |
| Unit total | $727.51 / $768.91 |
Welded or knock-down?
Throat depth is the overall wall thickness the frame wraps. Pick the frame type, then the throat that matches your wall.
Welded frame
One rigid piece with welded corners, set as the wall goes up. The strongest option for masonry and concrete block walls and new construction.
Masonry & block wallsThroat: 4 7/8"Knock-down frame
Ships in three pieces and wraps a finished drywall opening — ideal for retrofits and tenant fit-outs. 3 3/4" fits 2-1/2" studs, 4 7/8" fits 3-5/8" studs (5/8" drywall each side), 6 1/8" fits thicker walls.
Drywall / stud wallsThroat: 3 3/4" · 4 7/8" · 6 1/8"Strong, secure, made to last
Two locks
A knob or lever lock plus a Grade 2 deadbolt on every unit.
Steel all around
20-gauge galvannealed door and 16-gauge steel frame with 7-gauge hinge reinforcements.
Finish it outside
Doors ship primed gray — add your exterior paint. Weatherstripping, sweeps and thresholds on request.
How to pick the right swing

Stand on the outside of the opening — the side the door swings away from.
Right hand: hinges on the right, door swings away from you.
Left hand: hinges on the left, door swings away from you.
Reverse (RHR / LHR): the door swings toward you — call us if you need a reverse swing.
Measuring: order by nominal door size. A 36" × 80" unit has an actual door of about 35-3/4" × 79-1/4" and an overall frame of about 40" × 82". Check your drawings or local code for the required swing — or send us your rough opening and we'll confirm.
Doing several doors? Get factory-direct pricing.
Volume pricing on exterior steel door units for stores, warehouses and buildings. Pick up in Brooklyn or Long Island, or have them delivered by our own crew.
Exterior steel door questions
What comes with an exterior steel door unit?
A 20-gauge, 1-3/4" hollow metal door, a 16-gauge welded or knock-down steel frame, three self-closing spring hinges, a UFD knob or lever lock and a UFD 3501 Grade 2 deadbolt.
Is it weather-ready?
The door ships factory primed gray; paint it with an exterior finish coat after install. Weatherstripping, door sweeps and thresholds are available on request.
Which lock function should I pick?
Storeroom is always locked outside (key only) with free exit inside — best for mechanical, electrical and storage rooms. Entrance locks with a push button inside and a key outside — best for offices and tenant doors. Passage never locks — best for corridors and stairwells.
Welded or knock-down frame — which do I need?
Choose welded for masonry or block walls and new construction (4 7/8" throat). Choose knock-down for an existing drywall or stud wall: 3 3/4", 4 7/8" or 6 1/8" throat to match your wall thickness.
How do I get my door unit?
Pick up at our Brooklyn or Long Island location, or we deliver to your job site. Installation is available in NYC, Nassau and Suffolk. Call (718) 455-8442.