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Slab only  Door only — frame, hinges and lock hardware are sold separately.

Fire-Rated Steel Doors90-Minute Rated

90-minute fire-rated hollow metal door slabs for stairwells, corridors and apartment entries — 20-gauge galvannealed steel, 1-3/4" thick, cylindrical or mortise prep. Widths 24" to 44", heights 72" to 96", $398.48 any size.

Shop sizes (718) 455-8442
  • 90-minute fire rated
  • Cylindrical or mortise prep
  • $398.48 any size
  • Serving NYC since 1924

33 products

What you get

Sold as a slab only

Each listing is the 90-minute fire-rated steel door leaf only, prepped for a cylindrical or mortise lockset. For a rated opening you'll also need a rated frame, hinges and latching hardware — order them separately or call us for a complete package.

Included

  • Steel door slab (door leaf only)
  • 90-minute fire rating
  • Cylindrical or mortise lock prep
  • 20-gauge galvannealed steel, 1-3/4" thick
  • Insulated honeycomb core
  • Your choice of left or right hand

Not included — sold separately

  • Door frame (welded or knock-down)
  • Hinges
  • Fire-rated lockset
  • Door closer, panic bar and other hardware
  • Installation (available — call for a quote)

Specifications

Door specifications

ProductFire-rated steel door slab — door only
Fire rating90 minutes
Lock prepCylindrical (161) or mortise pocket
Material20-gauge galvannealed steel
Thickness1-3/4"
CoreInsulated honeycomb
Nominal widths24" to 44"
Nominal heights72" to 96"
HandingLeft hand or right hand
Price$398.48, any size
AvailabilityIn stock — Brooklyn & Brentwood, NY
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 are on your left, order Left Hand. If they're on your right, order Right Hand. Not sure? Call us and we'll help you confirm before you order.

FAQ

Fire-rated steel door FAQ

What does a 90-minute fire rating mean?

The door is rated to hold back fire for up to 90 minutes as part of a rated opening. 90-minute doors are typically specified for stairwells, corridors and other openings in fire-rated walls — check the rating your code or architect calls for.

Is the whole opening fire rated if I buy just the door?

No. A fire-rated opening needs a rated door, frame, hinges and latching hardware together. These listings are door slabs only. Pair them with our steel door frames and UL-listed fire-rated locksets.

Cylindrical or mortise prep — which do I need?

Cylindrical prep has a round bore for a knob or lever lockset. Mortise prep has a pocket in the lock edge for a box-style mortise lock, common on apartment entry doors. Match your existing lock, or call us and we'll help.

What size fire door should I order?

Order by the nominal opening size, for example 36" x 84". The door itself is slightly smaller to leave clearance inside the frame. We list widths from 24" to 44" and heights from 72" to 96".

How do I get my door?

Pick up at our Brooklyn or Brentwood, NY warehouse, choose NYC delivery, or ship LTL freight nationwide.

Can you make a custom-size fire door or install it?

Yes. We fabricate steel doors to spec in our New York factory and install with our own crews across all five boroughs. Contact us for a quote or contractor pricing.

Related

Complete the opening

Steel Door FramesWelded and knock-down framesFire-Rated LocksetsUL-listed lever and knob locksetsCustom & Odd-Size SlabsNon-standard sizes for older buildings

Need a complete fire-rated opening?

We supply fire-rated doors, frames and hardware together, fabricate custom sizes in our New York factory and install with our own crews. Contractor pricing available.

Request a Quote(718) 455-8442