Premium Steel Doors Manufactured in Britain
Premium Steel Doors Manufactured in Britain 
Steeldor single and double personnel door-sets are designed for internal and external use to enable entry and exit.
Acoustically rated up to 36dB, each is built to order, individually constructed with a choice of hardware, frame, threshold and panel options, including louvre, vision, over and side panels.
Easy to install, and manufactured from corrosion resistant high-tensile steel, each door-set comes complete with powder coating and an appropriate installation kit.
Popular with contractors and specifiers alike, this all-rounder comes with a range of features and options that can be specified to order.
Fast quotes
Easy fit doors
Steel door experts
10-12 day lead time*
Single - up to 2.96m
Double - up to 2.96m
Single - up to 1.4m
Double - up to 2.7m
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. 44mm thick ‘Hexatex’ core or upgrade to Rockwool insulated core for 1.9 u-value.
Door Ironmongery
Grade 13 stainless steel, twin bearing template drilled butt hinges with integral high security dog bolts are fitted as standard with CE marking. Other hardware available.
Finish
Supplied inclusive of a powder-coated finish in a standard colour. Full range of RAL and BS colours available.
Seals
Strongdor self-adhesive P-seal provided as standard.
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.
Personnel Steel Doors
‘LPS’ is the abbreviation for Loss Prevention Standard and ‘LPS1175’ is just one of many standards created by the Loss Prevention Certification Board. LPS1175 specifically focuses on the intruder resistance and security of doors, and in Strongdor’s case, steel doors.
View ArticleNo, 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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