45mm thick twin tray construction with internal armoured steel plate reinforcement. Door skins manufactured from 1.5mm thick zinc coated mild steel for enhanced corrosion resistance. Light weight, impact resistant honeycomb core supplied as standard or mineral wool and vertical stiffeners when required. Anti-pry astragal fitted to leading edge for lock bolt protection. Hardware preparations suitably reinforced and pre-threaded for required fasteners.

100mm x 57mm single rebate profile supplied as standard. Double rebate profile and increased frame depth sizes available on request. Manufactured from 1.5mm thick zinc coated mild steel. Knock-down butt joint frame assembly method for ease of site installation as standard. Butt welded option available on request. Factory prepared hinge, strike plate and door closer mounting plates.

Silicone self-adhesive smoke/weather seal to frame and Approved Doc M compliant aluminium low profile threshold c/w integral seal supplied as standard. Clear threshold option and alternative aluminium or steel profile designs available on request.

Door frames second fixed within structural openings using packing shims and expansion anchors to masonry/concrete openings or machine screws to drilled and tapped holes in steelwork. Frame fixing holes infilled with snap-fit low-profile plastic hole plugs. Frame to wall joints sealed with mastic sealant.

Tested and certified to Loss Prevention Standard LPS 1175 Issue 8. Security Classification B3 (SR2). Certificate No. 234s. Secured by Design accredited.

Certifire range tested by Warringtonfire to BS EN 1634-1 and third-party fire product certification scheme approved to 1 hour fire integrity duration. CE/UKCA marked range tested to BS EN 1634-1 by Efectis and approved to 4 hours fire integrity duration.

Thermal transmittance certified in accordance with BS EN ISO 10077-1 by Element Materials Technology. U-value for plain single doorsets: 3.0 W/m².K U-value for plain double doorsets: 3.1 W/m².K

Comprehensive selection of attack and fire tested, CE/UKCA marked, high security locking systems including ASSA Modular range, ABLOY EL range, MICO MSR range, Surelock McGill Sterling and Slimline range locks. Panic escape, emergency escape and access control options. Heavy duty door closers. Minimum of four BS EN 1935 Class 13 stainless steel ball bearing butt hinges fitted to each door leaf. Sunray heavy duty barrel bolts to double door passive leaves. All hardware factory fitted as standard.

Top coat: Architectural grade polyester powder coat. 30% gloss level. 60-80 microns thickness. Optional marine grade zinc rich primer for enhanced corrosion resistance. 60-80 microns thickness. Stocked range of 58 standard colours. Other colours and finishes available on request.