Securidor+ S4 security door range is accredited to offer a high level of security against potential attack from heavy duty tools such as felling axes and disc grinders. These single and double door sets are available in a wide range of bespoke sizes, with over 100 locking options and a choice of RAL/ BS colours. The range is suited for use in high security installations, such as Ministry of Defence, banks, schools, utility buildings, sub-stations and Home Office approved gun rooms.

Single personnel door-set
Securidor+ S4
Bespoke security-rated steel door-sets. LPS1175: Level 4 Issue 8 Cert/LPCB ref. 1542c
14 day lead time
Up to 2.75m high
1 year warranty
Next day quote

Call us on 01524 727000 for free expert advice and a fast quotation
Securidor+ S4 - Meets the requirements and testing procedures of LPS1175: Issue 8. LPCB approved and listed for intruder resistant building components, strongpoints, security enclosures and free standing barriers.
Securidor+ S4 - LPS 1175: Level 4 Issue 8 Cert/LPCB ref. 1542c
Typical door types and sizes
Please note that these door-sets can only be supplied with outward opening leaves.
Single door size | Double door size |
Min 500 x 1500mm | Min 900 x 1000mm |
Max 1284 x 2752mm | Max 2492 x 2752mm |

If you are unsure, or have a question, then please talk to one of our expert sales team, who will be able to advise and guide you.
Typical Securidor+ S4 specification
Frame
The welded frame is made from reinforced 1.5mm steel and a 38mm x 100mm single rebated profile, reinforced at the hinges, lock keeps and fixing points.
Leaf
Manufactured from 1.5mm steel on inner and outer face, the composite door leaf is 45mm thick with integral astragal lip to the closing edge. It weighs approximately 80kg per square metre.
Standard threshold
Leading face fits under the door - see below
Certification
Certified by the Loss Prevention Certification Board to LPS 1175 Level 4 Issue 8 Cert/LPCB Ref. 1542c
Key Features
The range is certified to LPS1175 level 4, and fitted with extreme heavy duty hinges complete with 2 integral dog bolts per hinge. Constructed to resist attack from high powered cordless tools, felling axes, disk grinders, jigsaws etc.
Finish
Wide choice of finishes available including powder coated finish from our range of RAL or BS colours.
Hardware
Choice of personnel, panic and escape hardware, with over 100 locking options available - including single and multi point bolting. All escape hardware complies with BS EN 179. Full list of compliant hardware can be found at www.redbooklive.com
Optional Extras
Certified Louvres available up to 400mm square.
For hardware and configuration please contact our sales team on 01524 727000
Securidor+ typical door features
- Independently tested by LPCB 1175 and passed stringent attack testing
- Single rebate minimum depth 38mm x 100mm
- Leaf 1.5 galvanised steel
- Minimum of 5 Reinforced fixing points either side with additional 2 on the head jamb for double doors
- 45mm thick door leaf with an anti leverage astragal
- D Seals
- Double skinned with interlocking strengthening seams
- Minimum of 4 Reinforced, Pre treated and Protected Grade 13 stainless steel ball bearing butt hinges (complies with EN 1935:2002)
- Vertical Anti Twist Interlocking welded channel core
- Reinforced lock keep
- Dense Rockwood Core
- Frame: 100mm galvanised steel
- Powder Coated (pre treated and primed as standard offering additional protection)
Call us on 01524 727000 for free expert advice and a fast quotation
