Premium Steel Doors Manufactured in Britain
Premium Steel Doors Manufactured in Britain 
Steeldor emergency exit doors can be configured as either single, double or leaf and a half door-sets. Our bespoke steel doors can be acoustically rated up to 36dB and have superior security features.
Available with an upgrade to an insulated core as low as 1.5 U-value, each steel door is built to order, it comes with a choice of hardware, frame, threshold and panel options including louvre, vision, over and side panels.
Fast quotes
Easy fit doors
10 day lead time*
Steel door experts
Single - up to 2.96m
Double - up to 2.96m
Leaf & A Half - up to 2.96m
Single - up to 1.4m
Double - up to 2.7m
Leaf & A Half - up to 2.69
44mm deep leaf skin
EN1026:2000 to class 4 – 600Pa (113kmh) test pressure
EN1027:2000 to 150Pa for outward opening and 100Pa for inward
EN12211:2000 to 1200Pa (Class A3) 98 mph
Available with an insulated core as low as 1.5 U-value.
Up to 36dB rating.
Frames
Manufactured from lightweight, high tensile 1.5 mm thick ‘Rustec’ steel.
Adjust 2-Fit side expander system that offers up to 12mm expansion to the structural opening.
Self-adhesive P-seal provided as standard.
Various frame depths and styles are available.
Leaf
44mm door leaf thickness, fitted with an integrated astragal for added security. Comprising of 2 x 1.2mm ‘Rustec’ steel sheets, the leaf skins are mechanically interlocked and internally bonded, providing greater stability and protection against de-lamination.
Finish
Supplied inclusive of a powder-coated finish in a standard colour. Full range of RAL and BS colours available.
Options and Upgrades
Manual and Electric Locking.
Vision panels up to 610 x 1524mm.
Louvre panels up to 610 x 1524mm.
Variety of solid and glazed side and over panels.
Up to 36dB acoustic rating.
Up to 1.5 U-value W/M2K.
Single Door Installation
This video contains detailed, step-by-step instructions for the safe installation of a Strongdor Steeldor single door-set. Please pay particular attention to the safety instructions.
Double Door Installation
This video contains detailed, step-by-step instructions for the safe installation of a Strongdor Steeldor double door-set. Please pay particular attention to the safety instructions.
Touching up Paintwork
A demonstration of how to sue the touch up kit supplied with your steel door-set.
Speak to an expert now
01524 727000 Our vision panels are produced in various panel formats and sizes, some of which can be fire rated, we offer a choice of glazing options depending on the door's application.
Designed to increase airflow in areas that need efficient ventilation, louvred door, side, over panels and walls offer a flexible solution without compromising security or structural integrity.
Emergency Exit Steel Doors
No, Strongdor are a supply only manufacturer and therefore unfortunately don't offer site surveys or installation. However we can recommend local installers in your area from our Doorfit Network, who will be happy to help.
Complete our quotation request form, mention you are looking for installation and we will put you in touch!
For any door that is installed within 5km of the coast, we recommend that you talk to one of our sales team members about specialist door coatings.
Please ensure you advise our sales team when making your initial enquiry and they will quote accordingly.
Purchase steel doors regularly? Speak to one of our account managers and request to set up an account today.
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