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"IRC 2006 R502.7 Lateral restraint at supports. Joists shall be supported laterally at the ends by full-depth solid blocking not less than 2 inches nominal in thickness; or by attachment to a full-depth header, band or rim joist, or to an adjoining stud or shall be otherwise provided with...

I'll second what WillisV said....

I haven't come across a drastic difference between brands of equivalent sized I-joists as far as allowable spans/capacities go. Besides, when the drawings call out '14" LPI/TJI/GFCI/etc joists @ 16"oc', our supplier does their own layout/takeoff to ensure the correct product for the actual spans...

I guess I should have asked this question of Risa-Floor as I'm not really looking to do finite elements on a house. Obviously, for a 2-story Colonial with a middle bearing wall, modeling isn't worth the time. But for cut-up 5000-10000 sf houses, with 45 degree bearing walls here, and beams...

We design and build using either Select Structural Doug Fir or glulam. The doug fir is green and will check giving a more "rustic" look. The glulam will be straight and have a cleaner finish.

The "Residential Construction Performance Guidelines" 2nd Edition from NAHB states: 2-13 Poured concrete basement wall is out of plumb. Performance Guideline: Concrete walls shall not be out of plumb greater than 1-1/2 inches in 8 feet when measured from the base to the top of the wall...

Has anyone used RISA3D to model the framing of a wood structure, ie, a house? I would love to use it to capture all the loads from the ridge beam down to the beam in the basement. I just wonder if that's a reasonable request of the program. -chuck

With that much snow (75psf), and you mention an 8x8 hottub which is going to have a significant impact on the size of deck members by itself, is the extra 30 or 40 psf of Live Load gonna break the bank? My biggest concern would be an adequate ledger connection, which I would avoid if at all...

Steel beams are not covered by the prescriptive IRC code, therefore require to be engineered. Once designed, the beam can be supported on anything capable of carrying the applied loading. A properly connected, sized, and braced wood column can be used to support a steel beam.

I think you need to decide whether it is a check or a split and then determine its effect on the member. For beams that are checked (typically green timbers check as they dry), you may have shear resistance issues. Ie, if the beam split all the way through, you'd have a much less stiff member...

We deal regularly with USP products and use their Triple Zinc coated products for use with ACQ treated lumber. Most treated deck lumber is 0.40 lb/ft^3 ACQ. However, CCA treatment is still used for treated Glulams and marine grade lumber. Looking in the USP Retail Price Guide available on...

Most steel plate comes in 1-inch increments, ie 11" wide x 20' long pieces, so i would recommend working with what is readily available to save the contractor. Might be better off using a 10" steel beam with packed out webs. Have you figured the self weight of this monster?

16" oc allows even spacing on 48" panel intervals, and its just about the minimum space that some contractors can fit through without snagging their belt buckle. :-)

So rday, You fax them something to sign with a broad description of what you'll do before you go to the job? and do you typically require payment when you arrive at the site, or do you just send an invoice afterwards?

I just finished reading AlpineEngineer's thread about "billed time" and thought I'd get some input on a similar problem. I get phone calls from people who are looking for an engineer to come out to their house and evaluate an existing condition or problem and present them with either an...

First off...I use the Cr on beams and headers but I'll admit, I hadn't noticed the NDS doesn't explicitly list beams and headers in its description. JAE - I don't see how "similar members which are in contact or spaced not more than 24" o.c" is referring to contact with decking. Either the...

....and one more nice feature: If you have a trapezoidal load that starts in one span and stops in another, it can be put in once and the program breaks it into pieces for pattern loading automatically. The loads are immediately visible on the beam below the input, and they reflect relative...

I use Woodworks Sizer all the time for multispan beams. It does a great job of pattern loading snow and live loads, and summarizes the controling moments, shear, and deflections. It checks wood and generic LVL, or you can customize the database to have the LVL properties for what you typically...

Your company probably wouldn't being "insuring" that the implementation of the design would go flawlessly, and that, in my opinion, is where things are more likely to go wrong.

With the chimney so big, and presuming it's designed and detailed to be a structural support for the load of the ridge beam and as long as you're well clear of the flue, I don't think you have a problem. My interpretation of those clearances is that they are more intended for smaller chimneys...