The anti-intrusion class 4 security door
884 is the anti-intrusion class 4 security door. The safest Di.Bi. security door, 884 is the answer to people who require the upmost security standard for his house or working place. It’s been designed with special reinforcement on the leaf and the subframe to protect the fixed deadbolts, the lateral deadbolts, the locking system and the leaf.
884 can be customized as all DI.BI. security doors, both in terms of finishing panels and installing solutions, offering our highest anti-intrusion class.
884 is available for standard and out of standard dimensions, as a security door for internal or external installation.
Thermal insulation
1,13 - 1,26 W/m²K
Acoustic insulation
30-31 dB
Anti-intrusion
Class 4
Air permeability
Class 3
Resistance to wind load
Class 5
Watertightness
Class 9
Installation
Security doors for external installation
Acoustic insulation notes
30 dB with external panel 4mm thick 31 dB with external panel 10mm thick
Thermal transmittance notes
1,13 W/m²K with external panel 20mm thick 1,26 W/m²K with external panel 4mm thick
Subframe made with 20/10 thick galvanized steel with 12 anchors to wall and reinforcement plates for deadbolts
Frame made with 20/10 thick galvanized steel, painted brown Ral 8017 and complete with plastic covers, gasket and footers
Adjustable hinges on 3 axes with brown hinge covers
Doorleaf made of three galvanized steel sheets 30/10 thick. Gasket in the perimeter of the leaf
Horizontal bars 20/10 thick
Thermal insulation with high density polyurethane.
Wide-angle peephole