Two identical steel leaves, one tall vision panel each, center-seam cylinder lock — the controlled-environment workhorse. For doubles, the number that matters: certified pair envelopes to 3000 × 3500 mm.
Specifications
| Configuration | Double-leaf, equal steel leaves · twin vision panels · center-seam cylinder lock |
|---|---|
| Fire performance | 0.5 / 1.0 / 1.5 h — GB 12955-2008 steel insulated fire doors |
| Max certified pair envelope | 3000 × 3500 mm — GFM-3035-dk5 Class A -2 (CQM23335301012360, valid to 2028-01-15) |
| Certified pair families | GFM-2123-dk5 Class A — Z2018081806009545 · GFM-2123-bdk5 / dk5 Class B — Z2015081806004972 · decorative-face single GFM-1123-dk5 — Z2018081806009543 |
| Single-leaf steel (NA program) | 90 min · single swing 1120 × 2355 mm (ATM 91995) · steel frame stop 15 mm, min throat opening 84 mm, singles 1130 × 2365 mm (ATM 91996) |
| Hardware (NA steel) | Listed mortise or cylindrical locks · min latch-bolt throw 1/2 in (12.7 mm) · single-point latching (ATM 91995) |
| Edge sealing & hose stream | Category G intumescent edge seal · 90-min steel evaluated with hose stream (ATM 91995) |
| Vision panels | Per opening schedule; certified glazing envelope reference: max 330 × 330 mm, min bite 12.5 mm (Listing 92609) |
| Note | Pairs and double-egress units sit outside the current Intertek single-leaf authorization; double units ship under GB certificates. |
Evidence & documentation
- Intertek test report 250612025SHF-004 — 90-minute steel fire door + frame (30 pages) · View PDF
- Authorization to Mark 91995 — single-leaf steel fire door, 90 min · View PDF
- Authorization to Mark 91996 — steel door frame, 90 min · View PDF
- Full certification wall — reports, authorizations and listings · certifications
Every quote ships with the matching test report, listing extract and hardware schedule. Request a project quote.