Security Rated Steel Door - SR3

Home / Our Doors / Steel Security Doors / Security Rated Steel Door - SR3
;
Securidor+ Blue Logo

The Securidor+ S3 security door range comprises of single and double security-rated steel door-sets that are specifically designed for use in locations that would benefit from enhanced protection. The typical applications for this range includes retail outlets, cash rooms, warehouses and utility sub stations.

Please note that these door-sets can only be supplied with outward opening leaves.

  • Secure for sure with Strongdor
  • 14 locking options available
  • Louvre Panels in different configurations
Unique Range Features

Easy fit doors
1 year warranty
Steel door experts
Trustpilot rated Excellent

Download Tech Specs
Sbd logo
Made in Britain Colour
LPCBCertificationblack

Product Features

Height Icon
Height

Single - up to 3.06m
Double - up to 3.06m

Width Icon
Width

Single - up to 1.4m
Double - up to 2.51m

Strongdor Icons Acoustic
Acoustic Rating

Est 35 dB

I7
Louvres

305-800mm wide by 305-1025mm high - Not available with panic hardware

NBS Specification

Further information

Features
Drawings
Downloads

Frame
The welded frame is made from reinforced 1.5mm galvanised steel and a 38mm x 100mm single rebated profile. It is reinforced at hinges, lock keeps and fixing points.

Leaf
Manufactured from 1.5mm galvanised attack face steel with 1.5mm inner face, the composite door leaf is 51mm thick with astragal lip to the closing edge. It weighs approximately 80kg per square meter.

Key Features
The range is certified to LPS1175 SR3, and fitted with doubled hinges for additional strength. It also incorporates an anti leverage cover strip to closing edge of door leaf. The door-sets are also Secured by Design approved and are also available with louvres.

Certification
Certified by the Loss Prevention Certification Board to LPS 1175 SR1 Issue 7 Cert/LPCB Ref. 1542a .

Threshold
Leading face fits under the door.

Hardware
Choice of Hooply Cefiro multipoint lock, Mico Tindall AD1 push pad, Mico Tindall AD2 full push pad, Mico Tindall AD3 lever handle, Mico Tindall MD1 push pad, Mico Tindall MD2 full push pad and Mico Tindall MD3 lever handle hardware. Heavy duty tower bolts on the passive leaf. Keys and cylinders can be registered to eliminate the chance of key copying.

Finish
Wide choice of finishes available including powder coated finish from our range of RAL or BS colours.

Optional Extras
Louvre Panels (subject to hardware)
305 - 800mm wide by 305 - 1025m high
(Not available with panic hardware)

Suitable Substrate
Brickwork/concrete blockwork, or structural steelwork.
Minimum Fixing Size - M10

Securidor Typical Leaf and Frame

View File

Standard Threshold

View File
Strongdorsecuridors3techspecthumbnail23

Securidor+ Level 3

View File
Strongdorcolouroptions23

Standard Colours & Coatings

View File
Securidor SR3 steel door fitting instructions

SR3 Fitting and Maintenance Instructions

View File

Similar Products

Security Rated Steel Door - SR4

Find out More

Security Rated Steel Door - SR1

Find out More

Security Rated Steel Door - SR2

Find out More

Any questions about this product?

Speak to an expert now

Telephone icon 01524 727000

Air Circulation

Louvre Panels

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.

Airflow panels

Door Configurations

Door Configurations for Steel Doors with security rating 3 & 4

Sr3 Doubles
Sr3 Singles

Hardware Options

View our popular items of door furniture and security hardware.

Dorma Maglock

Over 150 colours available

View Colour Options

You might be interested in

SR4

Security Rated Steel Door - SR4

View Door
White steel thermal door

Security Rated Steel Door - SR1

View Door
SR2 securidor

Security Rated Steel Door - SR2

View Door

Related Articles

Strongdor Factory Crime Prevention Officers Visit

Strongdor comes together with 13 Crime Prevention Officers

Industry-leading steel door manufacturer Strongdor Ltd, open up their factory to Crime Prevention Police Officers from across the North West to discuss the role steel doors can play in crime reduction and security solutions.

View Article
Mobile Fire

What is LPS 1175 and what’s changed?

‘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 Article
Clear Opening Mobile

What is the Clear Opening Width and how do I work it out?

The clear opening width is the size of the gap any persons/objects can pass through freely when the door is opened to its full potential (most doors will usually only open to a 90-degree angle).

View Article

Frequently Asked Questions

Which security door is the best?

Unfortunately there is no simple answer to this question as all security rated door-sets have protection enhancement. The level of security required for your door-set will be dependent on the location and specification of your installation.

Check out our documents LPS 1175 vs PAS 24:2016 and LPS 1175 Explained to see which security rating may be best for you!

Who is responsible for ensuring the sales quotation meets the specification and building regulations, including location and method of installation?

It is the customer’s responsibility to ensure all details within the sales quotation / sales order meet the exact specification and / or original enquiry and are compliant with current building regulations including location and method of installation.

We are here to help and advise only and cannot accept responsibility for discrepancies after the order is confirmed.

Strongdor Terms and Conditions

Request a Quote

Trade customer?

Purchase steel doors regularly? Speak to one of our account managers and request to set up an account today.

Apply today

Stay in the know

Join our mailing list for industry news, product updates and more

This site uses cookies to monitor site performance and provide a more responsive and personalised experience. You must agree to our use of certain cookies. For more information on how we use and manage cookies, please read our Privacy Policy.