Building width is measured perpendicular to the ridge. Your building is 32 ft wide, which is right in between the 28 and 36 foot columns of the chart. It sounds like the girders under the joists will be an "interior bearing wall" span supporting "one floor only." They have charts for girders and headers in the ICC. Hopefully Don_P will be along sometime soon and see if I have messed up or not. Perhaps you need some engineered wood, or steel. That still FAILS the fiberstress in bending test. Using three columns across the length reduces the span for each to approximately 120" (10 ft) The calculator tells me that 4 layers of 2x12 (actual beam width of 6" and depth of 11.25" will FAIL the Fiberstress in bending test and the deflection test. (the calc is fixed to use a value of L/360 on floors)īut let's see what happens when we use. Using Don_P's simple beam calculator and the following data for SYP. Half of that will rest on the center beam and a quarter on each side wall.Ģ4750 / 2 = 12375 on the center beam for each segment. If we call the LL to be 40 PSF, let's call the DL out at 15 PSF. Let's call that a 32 x 42 building that = 1344 sq ft.ĭivide that into three parts = 448 sq ft per section I always though it was better to stagger the joints to minimize a hinge effect over the column, but he says his way is correct. My contractor (NOT an engineer) says a beam built up out of 3 or 4 2X12's will be 'plenty', but of course, the inspector has to believe that, too.Īs an aside, my contractor builds such beams with all of the joints over the column. Materials available locally are #2 southern yellow pine- strong stuff. Design load should be 40 psf minimum live load, and I want a L/480 stiffness. I don't have enough room to put them on top of the carrier beam, so they will be attached with hangers. They will be hung from ledgers at the edges, and the carrier beam in the middle. Specs- The floor joists will be 2X12's on 16" centers. The lumber yard said I would need an LVL, but what did they do before those were around? I show two evenly spaced support posts, but could go with three if it would help. I'm attaching a drawing with the dimensions. Dindas Dindas LVL14 F17 is widely available in long continuous lengths in thicknesses of 35 mm and 45 mm and section depths from 90 mm to 290 mm.I'm wondering if there's a way to prescriptively calculate the carrier beam I need for my main floor. It provides the extra performance of F17 graded LVL with modified properties and sizes to suit F17 hardwood conversion. Readily available in long continuous lengths and thicknesses including 35 mm, 45 mm, 63 mm and 75 mm and section depths from 90 mm to 600 mm.ĭindas LVL14 F17 offers an alternative to F17 hardwood beams for residential construction in traditional sizes. Strong, straight and true Dindas LVL provides the predictable, consistent performance you expect from a quality manufactured LVL. Engineered to perform at a more affordable price. Our Dindas LVL has been used and trusted in traditional sizes for over 30 years. Dindas LVL’s are easy to work with using traditional building tools and are clearly branded for easy identification and your guarantee of quality. The Dindas LVL solutions range from Dindas provides a cost-effective solution with predictable performance in residential, commercial, rural and industrial construction applications.Įngineered to perform, Structural Dindas LVL is available in two complementary ranges delivering both softwood and hardwood alternative beam solutions.
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