What is the best type of lintel to use for a opening of a 2.6m in a 215mm solid block wall .?
Question:thanks . in the uk
Answers:
don't agree with the other anaswers.
In the UK, i would go with concrete. If its a new opening you will need to give building regs notice on your council. If you intend putting steel in they will want to see stress calculations. They are fine with concrete.
whats above the opening ? Is it just the wall plate. If so you jsut need soemthing to support the rafters. If its a supporting wall its still no problem. Just get a one-man-band builder in to do it for you...1 days work, 2 at most ?
Steel angle iron of about a quarter inch thick (sorry, old fart American, don't know from meters) is the common thing to use here, the exact dimensions I can't give you, since I don't know metric. It will have to fit this opening.
Ideally you would want to place a steel angle under the opening to provide support. To provide enough support you would likely need to install a 6x4x5/16 angle on each side of the opening and install some through wall threaded rod to connect the 2 together. The angle should have 6" bearing on both side of the opening.
If in fact the wall is truly a "solid" block wall that would mean the that is is grouted and that might mean that you would need less of a support.
If the grout is in place check with a local contractor or architect and give them the dimensions and they should be able to quote the correct size for your needs.
you will need 2 no 2.9 meter 150mm(6 inch) by 100mm(4 inch) concrete pre stressed lintels , you need a 150mm(6 inch) bearing on both ends of the wall for the lintels to sit correctly .
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