My floor structure, planned, has bearing walls and beams creating spans whereby I could frame with 2×8 joists, but I prefer I-joists to sawn lumber. Does anyone make a 7-1/2″ I-joist?
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This would mean that your max joist length would be about 12 ft span....correct?
And I do not remember ever seeing any I-Joist listing smaller than 9"(+/_) listed in any manufacturer's spec sheets.
....................Iron Helix
Maybe you can find something useful here:
http://www.beconstructive.com/professionals/21st_ijoists.asp
I have never seen any under 9.5" tall.
jw
what the heck
was I thinking?
Gene,
So what's the problem with going with a slightly deeper I-joist? Are you trying to match existing conditions?
By the way, I saw a drawing you posted regarding a truss design. What program was used to create the drawing?
Ragnar
Edited 12/4/2002 10:10:51 PM ET by ragnar
I use Cadkey 97, a fully-functional 3D mechanical design package. Pretty much the same features as AutoCad. If I was going to do residential design work regularly, I would buy one of the newer pieces of software. Chief Architect comes to mind. Here is a rendering of a version of my deckframe, sitting atop main floor structural and walls. Disregard the second copy, as I mistakenly loaded the file twice. Regarding the I-joist issue, I think I will redesign using light-duty 9-1/2" I-joists spaced at 19.2".
Nice picture. Don't forget to layout your plumbing drops.............(-:
I think there were initially 7.5" I'joists and beams out there. But they never caught on - Not enough demand. So I don't think you're likely to find any now.
BTW - On your drawing, it looks like you've got some awfully long cantilevers at the corners of the building. Make sure you check out the I-joist specs if you're doing cantilevers.Q: How many Microsoft phone help technicians does it take to change a light bulb?A: Please hold, your call is important to us.
Boss,
Your right about the 7-1/2" I J's, I used them about 8 years ago for a garage ceiling on a house that I framed.
I haven't seen them since.
Boss as I'm typing to you right now the lumber yard just called me, he's saying a company called Jager Industries might have them. I'll try this website.
Joe Carola
http://www.jagerindustries.com
The website is jagerind, but that just redirects you to;
http://www.jager.ca/
CORRECTION that leads to their home building division.
Here is the link to their engineered wood products.
http://www.jagerbuildingsystems.com/home.html
Edited 12/5/2002 11:19:18 AM ET by Bill Hartmann
Boss and Bill,
I just talked to the lumber yard, the correct websites is:
http://www.jagerbuildingsystems.com
Gene,
You may want to call Nascor in Calgary. They manufactur a 5 1/2" and 7 1/2" I-joist that is incorporated into their all panels. Not sure if they would just well you the I-joist. (800)792-9555 or (403) 243-8919.
John
Bossman
the only serious cantilever seems to be in the front left corner where it looks like he has a footing for a post?
aIt's not who's right, it's who's left ~ http://CLIFFORDRENOVATIONS.COM
Those front two corners have columns under them. 16 x 16 stone ones, sitting atop piers. The flush beams shown at the far end are bearing walls, and it is one of the places where I could use full length 27 footers, if I can find a 7-1/2" I joist.
Thanks for the reply, Gene. Drawings look great as usual.
Ragnar