LPS1175 SR4 Security Steel Door

Our SR4 rated doors are LPCB certified to LPS1175. They provide moderate security and resistance to experienced determined attempts at forced entry, using a range of hand tools and battery powered tools including those that create noise.

BRE conducts extensive testing using items such as “K-tool” lock remover, jigsaw, sledgehammer, steel wedges and other manual tools to ensure that the SR4 door meets the specified time protection requirements of 10 minutes of continual attack.

Our SR4 doors have undergone further testing in order to achieve Secured by Design status, an initiative which helps to ‘design out’ crime through the use of high-quality, innovative products and processes.

Single & Double Door Sizes

All measurements are in millimetres (mm).

	Min. Width	Max. Width	Min. Height	Max. Height
Single Door	600	1430	1750	2930
Double Door	1100	2600	1750	2930

	Min. Size	Max. Size
Side Panels	n/a	n/a
Over Panels	600×200	2600×1200

Door Material Overview

Inward and outward opening are available
Door leaf: 1.5mm Zintec Steel, 45mm door leaf with astragal lip to closing edge
Door frame: 1.5mm Zintec Steel, 100mm single rebate
Infil: Honeycomb
Weight: 75kg (per metre squared)

Additional Door Options

Vision Panels

203mm x 356mm
203mm x 762mm
457mm x 457mm

Louvres

457mm x 457mm
305mm x 305mm top and bottom

Hardware available

Heavy-duty Mico Abryll hardware fitted as standard. Panic or emergency escape options are available as well as electronic access control.

Custom Colours & Finishes

Polyester Powder Coated from a standard colour range, non-standard colours are available at request.
You can download our RAL colour chart on this page.

Door Frame Detail

Frame dimensions may vary depending on specification. Suitable to fix into steel or masonry

Mid-level security protection

Tested to LPS1175 SR4 standards

Adheres to Secure By Design standards

Inward opening available