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High Security Steel Door (Ultra Duty)

From £279.99 + VAT (£335.99 inc. VAT)

Our most secure steel door yet, weighing up to 100kg! Known as the Ultra Duty High Security Steel Door, it boasts a more robust stainless steel multi point locking system and a 40% thicker door compared to our Heavy Duty Security Door range.

It also features an innovative ‘barb style’ jemmy bar lip which crucially helped this security door achieve successful STS202 BR2 testing (LVL3 Upgrade Only).

Also available as a high security steel double door, in sizes from 1295mm to 2195mm wide


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Category: GTIN: 5060479951284


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, 70mm depth.

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

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

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

Superior multi point locking shoot bolt mechanism

High security stainless steel multi point locking system with 3 shoot bolts into the top of the frame and 8 shoot bolts into the latching side of frame. Including the 6 dog bolts and latch, 17 points hold the security door in the frame.

Heavy duty stainless steel handles included as standard (#6198) with integral privacy lock

Higher security handle upgrade (level 2 & 3) available to increase security (#6101).

Weather & draught proof seals fitted as standard

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

DDA compliant threshold

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

Anti jemmy bar lip all around the steel door leaf, including the hinge side incorporating a ‘barb-like’ design to the latching side, which hooks into place when closed

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 security upgrades. Thumb turn and keyed alike configurations are also available.

Also available as a high security steel double door (ultra duty) in sizes from 1295mm-2195mm wide

Additional information

Available Sizes (mm)

795×2020, 845×2020, 895×2020, 995×2020


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



5 Stainless steel lift-off hinges


Stainless steel handles (Hooply 6198)

Locks or Door Furniture

Latham's superior multi 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. Superior ‘barb-like’ design


Fully welded construction

Security Type


CE Certification


Security Certification

STS202 BR2

Fire Rating Certification


Stock Product


Made to Measure Product


External or Internal Use

Suitable for external and internal use

Example Door Purposes

Security garage side door, security rear shop door, warehouse security door, office security door, acoustic studio security door


Ultra Door Promo Video:

Installation Video:



Download the brochure for our Ultra Duty door

Fitting Instructions


Download the fitting instructions for our doors

CAD Drawing (PDF)


Download the CAD drawing for our Ultra Duty Door in PDF

CAD Drawing (DWG)


Download the CAD drawing for our Ultra Duty Door in DWG

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