Hello All, rookie builder here.
Just seeking some input regarding a current project.
I have a 32’x26’ slab and I have 15’ side walls.
I have run 2-24” 1 3/4” LVL beams spaced at 8’ down the center of my 32’ run, but my span is only about 26’.
I have 16” I-joists on top of that spanning the 26’ sides.
I am building a small room above this area (16’x18’) with a walk out patio.
I’m going to tile the exterior flooring.
Do I need to double up these 24” LVLs or will these 2 be sufficient?
Thanks much for any input ?
Replies
Can you post your image in a different format? It is not showing up for me, and I am having a hard time understanding your layout from the description.
https://i.imgur.com/4pa6Bj6.jpg
Hopefully this will work better than my attachment, I can add some more photos today for better clarity.
Thanks much.
Looking at the picture, I have some questions. First, are there drawings that you are using to frame this in? Are the floor joists butted up to each other? I think that you need to have approved drawings or a structural engineer look this over. We are all learning and I might be wrong in my thinking looking at the one picture, I would stop and have professional advise given to me.
Interesting use of the I joists. each is cantilevered to the middle.
Did you consult any tables or info related to the joists to indicate this is a good idea?
In general, they need specific bracing to make sure the joist stays upright.
the maker of the LVL beams and your I joist maker should have tables and other info to help you make decisions.
Once you have that sorted out, you need to consult a beam table to answer your original question,
Not enough information to evaluate what you're doing.
- Who manufactured the LVLs and what grade are they?
- Same question concerning the I-joists.
- What will this framing have to support (i.e. roof or other uses)?
- Where is the project located?
- What kind of connection between the cantilevered ends of the I-joists will be used to insure that they deflect equally?
- Have you included shear walls at the corners of the 15' high walls?
Definitely creative but potentially a 'house of cards.'
[CT licensed structural engineer.]