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Old 05-15-2008, 08:52 AM
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Default Gauge of lintels in block stand?

I was checking out the angle iron at the local Big Box Store and found that they carry varying widths and thicknesses. I specifically recall that they had some at about 1.25" wide @ 1/8" gauge and about 2" wide @ 3/16" gauge. Would those both be wide and strong enough? What's the recommended minimum gauge for the lintels?
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Old 05-15-2008, 09:55 AM
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Default Re: Gauge of lintels in block stand?

I think the thicker/bigger angle iron is indicated. Don't hesitate to visit your local junkyard/scrap metal dealer. They may have even bigger pieces, and will cut it to length for you. I think the stuff at HD is overpriced.
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Old 05-15-2008, 03:09 PM
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Default Re: Gauge of lintels in block stand?

If I had it to do over again - and I likely will someday....

I would forgo the lintels all together - and let the slab span the opening in the front. There are many examples of this alternative here.

Christo
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Old 05-15-2008, 03:51 PM
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Default Re: Gauge of lintels in block stand?

Here's a clever idea from JED:



Cutting out sections of block divider, and inserting rebar for a reinforced lintel. Of course you have to support the span from below when you set it up, and fill it with concrete. A slightly more expensive idea is to buy a pre-cast concrete lintel to span the gap. You could do like I did, and make a form and build a masonry arch.

Or as christo says, you could just put an extra piece of rebar in the front of the slab, and forgo the lintel entirely.
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Old 05-15-2008, 04:18 PM
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Default Re: Gauge of lintels in block stand?

I love the idea of forgoing the lintel.
But I used one.
Just an old t-shaped bar from a garage door opener that the previous owner left at my house.
It worked fine and the t-shape adds some strength.
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Old 05-15-2008, 08:31 PM
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Default Re: Gauge of lintels in block stand?

Thanks for the input! I'm considering a cantilevered hearth and a brick arch in the opening to the wood storage area (kinda like my avatar shows, and like Ken has done), so I think I need the blocks to span the opening. But I will investigate these ideas further and try to find pictures of other methods. Thanks again.
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Old 05-16-2008, 08:23 AM
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Default Re: Gauge of lintels in block stand?

You could build the arches first and then pour the slab...
Just a thought!
Dutch
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Old 05-16-2008, 11:44 AM
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Default Re: Gauge of lintels in block stand?

Quote:
Originally Posted by Dutchoven View Post
You could build the arches first and then pour the slab...
Just a thought!
Dutch
You must be reading my mind. My plan is to do exactly that. Hopefully I will get the arch right. But if I don't, I can tear it down and redo it up until the slab is poured. The arch should provide a lot more bearing strenght than a straight lintel
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Old 05-16-2008, 01:26 PM
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Default Re: Gauge of lintels in block stand?

Now that's an interesting idea. The arch itself could help support the hearth slab. I like it!
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Old 05-16-2008, 01:32 PM
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Default Re: Gauge of lintels in block stand?

I just came across this document on brick arches:

Brick Masonry Arches

It has lots of images to get the brain juices flowing!
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