You are here:

Building Homes or Extensions/bigguest span without having a jack post

Advertisement

Expert: - 9/30/2009


Question
I am planning on lifting my house, it is 24ft x 28ft I currently have 3 jack post in the basement, I would like to eliminate all the jack post by putting in I beams, what is the size I would need to cover the 28ft span.. 10W 35lbs? all help is appreciated

Answer
Luc, you will need to calculate all loads on the girder.  The loads are subject to roof type and all wall, joist, and rafter loads (trusses do not bear on the center wall).  It sounds like you are in about the right size range, but this will require a structural engineer's stamp.

Building Homes or Extensions

All Answers

Answers by Expert:

Ask Experts

Volunteer

Dan Griffin

Expertise

I can answer almost all questions related to the total construction process. My expertise is in commercial construction, though I can field most any residential question. I have hands on experience in concrete, heavy equipment, masonry, all phases of carpentry, interior finishes, and I am fairly strong in mechanical and electrical.

Experience

I have over 20 years experience as a commercial carpenter and commercial construction superintendent. I have another 20 years experience in facility management for a major school district.

Organizations
My favorite hobby for he past 12 years has been singing bass in a The OkChorale men's barbershop chorus and the Mature Moments quartet.

Education/Credentials
I hold a Bachelor's degree in English and Math. I have completed many continuing education hours in the building trades. I hold a Master Carpenter card from the AGC, Associated General Contractors.

©2012 About.com, a part of The New York Times Company. All rights reserved.