Sample Specification
Prepare existing frame by removing any planted on door stops, architraves, and beading. Re-secure door frame using 4-No expanding masonry bolts per jamb and ensure that the frame is secure and plumb.
Frame armour profiles are to be formed from 16 gauge (1.5mm) galvanised mild steel sheet and shall incorporate 18mm door stops formed in the profile together with return flanges to protect the timber frame edges.
The head sections are to be square cut at each end and the jamb sections are to be slotted to provide an overlapping fit at the junctions between jambs and head.
The jamb sections are to incorporate pre-drilled positions for the hinge blocks, hinge bolts and the lock mechanism.
Provide 3-No hardened steel hinge blocks threaded to accept M10 adjustable hinge connectors fitting into the frame armour via threaded inserts to enable three way adjustment.
Screw fixing holes in the steel profiles are to be punch countersunk at approximately 250mm centres and positioned to be covered by the door when closed.
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