COMMERCIAL & SPECIFICATION
Commercial steel.
Certified. Slim.
Specified.
Fire-rated systems from E30 to EI120, and external commercial facades built to certified performance standards — for architects, developers and main contractors.
E30
INTEGRITY
EI30
INSULATED
EI90
INSULATED
EI120
INSULATED
STANDARD
BS EN 1634
PROFILE
Slim sightline
LEAD TIME
4–8 weeks
NBS CLAUSES
On request
COMMERCIAL FIRE-RATED SYSTEMS
Fire-rated systems.
E30 through EI120.
Fire-rated systems from E30 to EI120, plus our external commercial range — thermally broken facades and bespoke steel shopfronts for every commercial application.
THE SENTINEL · COMMERCIAL
Sentinel E30
E30 Fire Rated · Integrity
Our commercial E30 integrity fire door system. Slim, refined and fully compliant — designed for architects and main contractors who demand quality alongside certification. Available for internal and external applications.
SYSTEMS AVAILABLE
Internal & external · all commercial sectors
request specification
The Resilience · Commercial
Resilience Commercial
EI30 / EI60 / EI90 / EI120 · Insulated fire-rated
Our flagship commercial fire door system. Full integrity and insulation ratings from EI30 to EI120 — the most comprehensive fire-rated range we offer. Designed for demanding specifications in high-rise, mixed-use and critical commercial environments.
SYSTEMS AVAILABLE
Internal & external · highest commercial spec available
request specification
EXTERNAL COMMERCIAL SYSTEMS
External commercial.
Performance without compromise.
Thermally broken facades with certified thermal, acoustic and security performance — and bespoke steel shopfronts for the commercial projects that need to be remembered.
THE ARTESA · COMMERCIAL
The Artesa — Commercial
ART. 2.0 · Thermally broken · Doors, windows & screens
The same slim thermally broken profile, specified for commercial environments. PAS 24 certified security, acoustic performance to 45dB and U-values down to 1.2 W/m²K — without the visual weight that commercial glazing usually demands.
KEY PERFORMANCE
SYSTEMS AVAILABLE
Offices · mixed-use · hotels · retail · architectural commercial
request specification
THE SIGNATURE · COMMERCIAL
The Signature — Commercial
B40 External · Steel shopfront & commercial glazing
A steel shopfront system that does what aluminium can’t — bring genuine architectural character to a commercial facade. Slim sightlines, large glass areas and bespoke configurations for the retail and hospitality projects that need to be remembered.
APPLICATIONS
AVAILABLE AS
Premium commercial facades · bespoke · made to order
request specification
SPECIFICATION GUIDANCE
When to specify which rating
E30
Integrity only · 30 min
EI30
Integrity + insulation · 30 min
Residential conversions · stairwells · lobbies
EI60
Integrity + insulation · 60 min
Apartments · mixed-use developments · hotels
EI90
Integrity + insulation · 90 min
High-rise residential · critical escape routes
EI120
Integrity + insulation · 120 min
Plant rooms · highest-risk areas · specialist applications
Why specify Black Steel Doors
01
Slim profiles at every rating
Our in-house system maintains a refined sightline even at EI120. Not a bulky fire door — a designed one.
02
Factory direct
All fire-rated systems built to the highest specification. Controlled quality, reliable lead times.
03
Full certification documentation
Third-party test reports, CE marking and installation compliance documents supplied with every order.
04
Supply & install or supply only
Our trained installation team or supply-only with full technical support for your approved contractor.
Early-stage specification support
We work directly with architects and designers from RIBA Stage 1 onwards. Our team can advise on the right system before drawings are finalised.
NBS clause library
Pre-written NBS clauses for all commercial fire-rated systems available on request. Reduces specification time and ensures compliant documentation.
Full test certificate documentation
Third-party test reports, CE marking and installation compliance supplied with every project. Nothing left for your QS to chase.
ALSO AVAILABLE
Looking for residential doors and windows?
The same precision, for your home.
Our residential range covers internal steel door systems, fire-rated doors for residential Building Regs, and thermally broken external doors and windows — all made to order, all installed by our own team.
View residential range
black steel doors
020 8908 0006
Wembley showroom
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