Clearance steel doors are now available. Click here to view our current stock.

+44 (0) 1384 220 050

Security Steel Door (Heavy Duty)

From £189.99 + VAT (£227.99 inc. VAT)

Compared to our Standard Duty Steel Door, this security door uses thicker gauge steel, a denser core and has an extra hinge. It features our trademark 19 point locking mechanism (more than any other steel door on the market). This security door has been tested up to STS202 BR1 (LVL4 Upgrade).

This door is also available in a FD30 Fire Rated version from stock. Click here for more information.


Compare Product


Heavy duty white textured polyester powder coated finish from stock (RAL 9003)

We also offer a powder coating service to change the colour of your steel door and frame.

Fully welded construction for optimum strength

Door Frame: 2.0mm galvanised steel.

Door Leaf: Double skinned 1.0mm galvanised steel, 50mm depth.

Door Leaf Core: Fire board core, used for its high thermal, acoustic and impact values.

4 Stainless steel heavy duty lift-off hinges BS EN 1935:2002

4 Dog bolts (fixed locking points) on hinge side of steel door leaf.

14 point locking shoot bolt mechanism

3 shoot bolts into the top of the frame, 8 shoot bolts into the latching side of the frame, 3 shoot bolts through the bottom threshold into the structure below. Including the 4 dog bolts and latch, 19 points secure the steel door in the frame.

A security upgraded sashlock is also available (level 3 & 4).

Chrome plated steel lever handles included as standard (#5586) with integral privacy lock

Heavy duty stainless steel handles upgrade (level 2, 3 & 4) available to increase security (#6198).

Weather & draught proof seals fitted as standard

Our security steel doors are fully weather proof and can be used externally.

DDA compliant threshold

Disability Discrimination Act specifies a level threshold with a maximum upstand of 15mm with chamfered edges.

Anti jemmy bar lip integrated into the door & frame, including the hinge side

Internal shielding to protect shoot bolts from falling debris inside of the frame

Euro profile cylinder with unique ABC key system

Heavy duty kite marked cylinder upgrade is available, and highly recommended (level 1). The upgraded cylinder has anti-pick, anti-bump, anti-snap, anti-drill and anti-pull features.

Included in level 1, 2, 3 & 4 security upgrades. Thumb turn and keyed alike configurations are also available.

Also available as a security steel double door, in sizes up to 1995mm wide

Additional information

Door Type

Personnel Door

Available Sizes (mm)

695×2020, 745×2020, 795×2020, 845×2020, 895×2020, 945×2020, 995×2020, 1145×2020


White powder coat from stock, choice of colours available


Plain door with flush panel

Door Frame Material

2.0mm Galvanised steel

Door Frame Depth


Door Leaf Material

Double skinned 1.0mm galvanised steel

Door Leaf Depth


Door Leaf Core

Fire board core

U Value


Acoustic Value



4 Stainless steel lift-off hinges


Hooply handles (5586)

Locks or Door Furniture

Latham's trademark 19 point locking system


Euro profile cylinder (ABC key system). Security cylinder upgrade available.


Weather / draught proof seals

Dog Bolts

4 Dog bolts


DDA (Disability Discrimination Act) compliant threshold

Jemmy Bar Lip

At door jam, hinge side & top


Fully welded construction

Security Type


CE Certification


Security Certification

STS202 BR1

Fire Rating Certification

FD30 Rated version available

Stock Product


Made to Measure Product


External or Internal Use

Suitable for external and internal use

Example Door Purposes

Warehouse door, retail/shop door, office security door, security personnel door, site container door, portakabin door


Installation Video:

Attack Demonstration Video (Old)



Download the brochure for our Heavy Duty door

Fitting Instructions


Download the fitting instructions for our doors

CAD Drawing (PDF)


Download the CAD drawing for our Heavy Duty Door in PDF

CAD Drawing (DWG)


Download the CAD drawing for our Heavy Duty Door in DWG

You may also like…