Every time I draw a technical section, I have to add a lintel manually either in 2D or as a beam with a structural profile. Surely a lintel (to both leaves of a cavity wall) should be part of the window and door tool? It is surely more essential than some of the optional extras such as shutters etc?
In the UK most lintels are either:
- Pre-cast concrete with reinforcement
- Galvanised steel profiles with insulation (e.g. Catnic)
- Steel universal beams (paired together where supporting cavity walls)
- Timber beams in historic properties.
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