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Gauge of lintels in block stand?

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  • 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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  • #2
    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.
    My geodesic oven project: part 1, part 2

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    • #3
      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
      My oven progress -
      http://www.fornobravo.com/forum/f8/c...cina-1227.html
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      • #4
        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.
        My geodesic oven project: part 1, part 2

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        • #5
          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.
          My thread:
          http://www.fornobravo.com/forum/f8/d...ress-2476.html
          My costs:
          http://spreadsheets.google.com/pub?k...Xr0fvgxuh4s7Hw
          My pics:
          http://picasaweb.google.com/dawatsonator

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          • #6
            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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            • #7
              Re: Gauge of lintels in block stand?

              You could build the arches first and then pour the slab...
              Just a thought!
              Dutch
              "Making the simple complicated is commonplace; making the complicated simple, awesomely simple, that's creativity. " Charles Mingus
              "Build at least two brick ovens...one to make all the mistakes on and the other to be just like you dreamed of!" Dutch

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              • #8
                Re: Gauge of lintels in block stand?

                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
                Sharpei Diem.....Seize the wrinkle dog

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                • #9
                  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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                  • #10
                    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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                    • #11
                      Re: Gauge of lintels in block stand?

                      If you send me the span measurement, your brick size and the size of the mortar joint your shooting for, I can calculate the number of bricks and even tell calculate a taper for you if you want to do any cutting
                      Best
                      Dutch
                      "Making the simple complicated is commonplace; making the complicated simple, awesomely simple, that's creativity. " Charles Mingus
                      "Build at least two brick ovens...one to make all the mistakes on and the other to be just like you dreamed of!" Dutch

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                      • #12
                        Re: Gauge of lintels in block stand?

                        What a good resource! Who knew that every row of bricks above an arch needed an individual flashing?
                        My geodesic oven project: part 1, part 2

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                        • #13
                          Re: Gauge of lintels in block stand?

                          Originally posted by Dutchoven View Post
                          If you send me the span measurement, your brick size and the size of the mortar joint your shooting for, I can calculate the number of bricks and even tell calculate a taper for you if you want to do any cutting
                          Best
                          Dutch
                          Thanks Dutch!! I'll keep that in mind and let you know.

                          Daren
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