I have a house that was built in 1870. One of the rooms needs to have the joists replaced; the floor is in bad shape they are warped and badly bowed. The problem is the old joists are 14” tall and 2 ½” wide, if I replace them with standard 2x12s the floor won’t come out to the right height. Same problem if I buy I joist from the local home center. I am afraid the cost to special order them would be prohibitively expensive.
Could I rip a 2x6 in half, rip OSB to the proper size, then use an expanding glue like gorilla glue to assemble everything; making sure it is well clamped?
Would this be strong enough to meet building codes? Where can I find span tables to make sure?
2007-09-29 04:40:29 · 8 answers · asked by Charlie & Angie G 4 in Home & Garden ➔ Do It Yourself (DIY)
I would like to thank everyone for responding. Sorry, but I can't choose a best answer, they are all so well thought out. I will consult my local building permit office, let them know my span,what is there now and what i would like to do. If they won't approve then I will look at other options.
2007-10-02 11:09:43 · update #1
Check on laminated beams.They will get you the 14 inches that you need.
2007-09-29 04:57:11 · answer #1 · answered by snowman 5 · 1⤊ 0⤋
Half an inch of sag is pretty bad, and should be corrected. I used two methods in my old 1913 house. The broken floor joists in the kitchen I removed and replaced, because that area would see so much traffic, the load the floor would see was unpredictable, and it was easily accessible since I was tearing the floor up for other reasons. The cracked floor joist in the back bedroom we braced. We used hydraulic jacks to jack the joist up into the correct position and then took 2x4's about 4 feet long and nailed one on each side. This was strong enough to handle having a huge steel file cabinet sit on it without a squeak for the years I lived there.
2016-03-19 02:16:12 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Tji Joists Prices
2016-11-16 20:58:54 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Floor trusses and TJI I joists are generally considered engineered lumber. Most jurisdictions are going to require them to be certified by the manufacturer to be engineered or you would have to get an engineer to design and certify your homemade joists. Weyerhaeuser makes two different standard I joist that are 14 inches high by 2 5/16 inches wide. They are the TJI 230 and the TJI 360 series. Their web site will have span tables. And the supplier will give you a engineer's certification when you purchase them.
Go to www.iLevel.com and search for TJI span tables and the local distributor. My guess would be that the joists would be more expensive to site make then to buy mass produced factory made joists.
2007-09-29 08:02:45 · answer #4 · answered by jake 3 · 1⤊ 0⤋
It wouldn't be adviseable to make your own I joists - I beams.
However you could order them from a local lumber yard, or from Home depot/lowes, I beams are special engineered products and 14" should not be a problem. If you shop around and have the stores compete with each others prices you could save. For instance Home Depot or Lowes will beat anyones price by 10% so shop around get the best price and go to home depot or lowes to special order your product.
2007-09-29 17:48:53 · answer #5 · answered by alaraconstruction 1 · 0⤊ 0⤋
I recommend you check with your local building permit agency. You can use OSB to build joist but each jurisdiction has it own codes. I would take the measurement of your existing joist & spans and let them look at it. They may require a permit and you may find you must raise the house in order to install new joist. A friend of mine did that with his house and used a house mover to raise the house and then he replaced the joists. The mover took care of the electric and plumbing hookups. His house was from 1880.
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2016-02-07 15:47:01 · answer #9 · answered by ? 3 · 0⤊ 0⤋
Yes, you can make your own I-beams. I would purchase one and copy the design. You might need to rout a slot in the upper and lower pieces to accept the OSB. Gorilla glue or construction adhesive combined with nails or screws from above and below should work fine. Just check local codes for proper span.
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2015-01-24 10:23:17 · answer #11 · answered by Anonymous · 0⤊ 0⤋