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walkereng
walkereng, Bachelor's Degree
Category: Engineering
Satisfied Customers: 2742
Experience:  Over 30 years of comprehensive experience
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I want to remove a bearing wall 22' and install a versalam

Customer Question

I want to remove a bearing wall 22' and install a versalam beam ( 2- 1 3/4" x 9 1/2" )
26" wide house with 2x6 joist 16" center 5/12 pitch 2x6 rafters 16" on center 1/2" drywall ceiling
Submitted: 1 year ago.
Category: Engineering
Expert:  walkereng replied 1 year ago.

Can you take a look at the following link and answer the questions at the bottom of the sheet? Your answers will allow me to accurately model the loading and size your beam. Thanks

https://docs.google.com/open?id=0B3LjUB_rxIbcNVlreGljdFZUZ3kxTHhvVDFnRV9uQQ

Customer: replied 1 year ago.
q1 - beam 3
q2 - crawl space span 13'
q3 - no trusses - 2x6 cut rafters 16" 0n center
q4 - Nashville. TN
q5 - Asphalt
q6-7-8 na
I am a general contractor 2x10 floor joist 16" center 3/4" t&g plywood
Customer: replied 1 year ago.
to walkereng how do I answer on the sheet I am a General Contractor. q1 - Beam 3 q2 - crawl space span 13' q3 - no trusses 2x6 cut rafters 16" on center q4 - Nashville. TN q5 - Aaphalt q6-7-8 na 2x10 floor joist 3/4" t&g plywood
Customer: replied 1 year ago.
single story home on crawl space 26x44 all brick - 1/2" drywall 2x6 joist 2x6 rafters
Expert:  walkereng replied 1 year ago.

Let me take a look at your information, hold on

Expert:  walkereng replied 1 year ago.

One more question, any storage or occupancy in the attic area?

Customer: replied 1 year ago.
no storage in attic area
Customer: replied 1 year ago.
no storage in attic arae
Expert:  walkereng replied 1 year ago.

Sorry, one more question:

Is this proposed beam going to carry any roof loading (i.e do you have any purlin bracing coming down on this wall)

Customer: replied 1 year ago.
their are collar ties every third rafter and 1 perlin mid span this is a typical late 60's trac house
Expert:  walkereng replied 1 year ago.

OK, let me run a few numbers, hold on.

I’d like to point out that a Professional Engineer’s standard of care typically includes a site visit to assess field conditions and get an overall understanding of the structure. This can obviously not be accomplished through the internet. The information provided here is meant for planning purposes only (general sizing and budgeting) and is based on the information provided by you. All loading cases considered are for vertical loads only, no lateral analysis has been completed. The information should be verified by a professional engineer who can visit the site to ensure that potentially important information has not been overlooked or omitted.

Expert:  walkereng replied 1 year ago.

Since this beam will be supporting roof loading, your beam depth has increased.

I can give you an engineered wood option for your 22’ span beam:

Double 1-3/4” x 18” Versa-Lam 1.7 2400 DF

These are Boise Cascade products and you can go to the following link to find distributors in your area. http://www.bc.com/locations/#!/building-materials-distribution

You will need to have a local engineer detail your connections, size your support columns and determine foundation requirements.

Expert:  walkereng replied 1 year ago.

If you feel you have received a satisfactory answer to your question, click the Rating button that is appropriate. Experts are credited for each appropriately Rated answer they provide. If you have additional questions, please let me know. Thanks