The Securidor+ S4 range is built to resist attacks from heavy-duty tools such as felling axes and disc grinders. It is certified to LPS1175: D10 Issue 8 (LPCB ref. 1542c), ensuring a high level of protection for critical infrastructure and sensitive areas. These bespoke, security-rated steel door-sets are ideal for use in Ministry of Defence sites, banks, schools, utility buildings, substations, and Home Office approved gun rooms.
Available in single or double configurations, each S4 door-set is made to order in custom sizes, with a choice of over 100 locking options and a full range of RAL or BS colours. This flexibility makes the S4 range suitable for a wide variety of high-security applications where both performance and specification matter.
Single – up to 2.75m
Double – up to 2.75m
Single – up to 1.284m
Double – up to 2.492m
Est 35 dB
Welded frame made from reinforced 1.5mm galvanised steel
38mm x 100mm single rebated profile
Reinforced at hinges, lock keeps, and fixing points
LPS1175 SR4 certified for high-level security
Fitted with extreme heavy-duty hinges
2 integral dog bolts per hinge for added strength
Resists attack from cordless power tools, felling axes, disc grinders, jigsaws, and more
Choice of personnel, panic, and escape hardware
Over 100 locking options available, including single and multi-point bolting
All escape hardware complies with BS EN 179
Full list of compliant hardware available at redbook live.
Minimum fixing size: M12
Our steel door configurations are built for versatility, offering tailored solutions that combine strength, security, and reliable performance for any project.
