INDUSTRIAL METAL DOOR

All door leafs shall be 50/65/70mm, double skinned galvanized, commercial grade steel G90, zero spangle to B.S.2989 made of 1.0mm thick face Sheets and solid core construction of compressed mineral wool infill 100k.g./m3Density filled in between reinforcing stiffners and 2mm lead sheet, 3mm acutic sheet. Door leafs shall be rebated on 3 sides.Doors Shall achieve sound reduction index varying from 35db to 45db at 4KHz octave brand.