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Old 09-06-2008, 07:39 AM   #1
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Basement Joist Missing

Hi, I need lots of advise. I have a 1950's cottage, two story with nothing on the second floor but small loft type bedroom. My problem is in the basement 20X30 area. Its has two main load joist running 10 feet from either side sill plate. On the 30 run they cut OUT the main joist on both sides about 14 feet down and scabbed a flat 2x4 and block with (no I not kidding) 14" dia. trees. for floor supports. Yes, I had this inspected by a lic. eng. and they said the place won't fall down but that was before I installed heat in the basement. Now the tree supports are splitting 1-2' from the top. They must be replaced. I have jacked the one side up with 10 temp. tiger S jacks (10 ton at max.).

How do I install/tie into the good part and run the remaining 20' ???? Would two 10' sections work with a jack on either side or "finger joint" a 20' run using 2X10 (good joist is true 2x4) with a glued plywood core and install jacks at 10' spaces??? Pictures are enclosed .


Last edited by wmcoup; 09-06-2008 at 08:33 AM.
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Old 09-06-2008, 11:21 AM   #2
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A picture or two or three would really help people visualize what you are describing.


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Old 09-06-2008, 12:10 PM   #3
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Click on My Photos - I have attached three pixs for referrence
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Old 09-06-2008, 02:32 PM   #4
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Looks like there was an 8" x8" beam there originally. You would have had posts every 7-8' supporting it along the way.
Build a temporary wall on both sides of the beam. Install 3, 8" LVL's supported by concrete filled metal posts set in footings.
This is just a broad overview. The details would need to be worked out.
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