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2x12 lvl beam span table1/18/2024 So.here's the problem: My mortar is just so, so "chalky." It is very dusty. Not as much as I wanted, but I don't think water will sit in the bottom of the shower. It's not perfect, but 3 of four sides are good and the other side at least slopes toward the drain some. It dried and overall I'm happy with the slope. Ahhhhrghh! So I was left to try to shape up the mortar mix with an inch of liquid water on top! Not fun. (I guess I should mention this is on a slab.) When I was shaping it up all the water cooled and condensed on the top of my mortar. It mixed easily and the consistancy was good. I saw on YouTube where I was to use warm water for mixing it up so I did. I've poured my shower pan on my vinyl liner using green stripe quick set. And I hope to add living space in the attic at some point, bedroom only in this area. My concern is whether I can run the entire span with only supporting the beam at the 2 ends and a third support 3 feet from one end. All existing structure is typical of 1910 construction practices and this area of the house was an addition probably done circa 1920 to 1940. ![]() Gable roof 2x4 construction 24 on center. ![]() The roof is a 12/12 pitch(has recently had 3 layers of shingles, and a layer of cedar shake removed, a new 3/8th inch deck, ice and water, felt and architectural shingles. Above the wall is unfinished attic space. The room is 20' wide from outside wall to outside wall.underneath is a basement with a beam directly below the wall in question, the beam is a 6圆 timber supported every 8' by 6圆 timber columns. ![]() The length of the span is approximately 20 feet, I have four 24' 2 x 12's. I am redoing my kitchen and I want to remove a bearing wall.
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