I am looking for a method of covering the underside of a cavity wall catnic steel lintel with timber. Is it permissible to drill holes into the steel without affecting the lintel's performance?
Something that 'looks like' a wooden supporting beam about 8 feet long, but of a fabricated box section, about 12 inches wide and 6 inches deep.
I would start off(assuming you have an I beam) using a piece the same width as the lintel and fixing it to the lip with 'L' stretcher plates, fixing the plates to the wood only, and lapping the lip(if you see what I mean). Then you can fit what you like to it. Mr HandyAndy - Really
Thank you for those replies. The lintel is a 'top hat' version. Is is to support a cavity wall above an exterior opening onto a garden area. I want it to look as though the wall is supported by a wooden beam without there being any visible signs of the catnic. I hope to construct my own 'hollow section' timber beam so as to save on weight and cost, but need to be sure it does not sag in the middle, and therefore needs to be held tight up against both flanges of the catnic. How do I achieve this tight fit in the middle?
I would be tempted to drill a 3.5mm hole and stick a No.8 screw into it. If this is on your house wall, don't forget to add the necessary thickness of plaster board to act as a fire protection.
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