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How do I fix cracked beam?

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Posted by: from Brantford
5/4/2014 at 12:03:57 AM

I have a beam that runs across the span of my 21ft house. 18.9 ft into the 28.9 full length of my house. This beam lays flat and has a crack between the two current jack posts. How do I fix it?

This beam runs from one end, not supported on the cinder block framing. It runs about 22 feet in length, nailed to the bottom of the floor joists. Supported by two jack posts and a piece of warped lumber. I don't know if this supports my second floor or the walls for my main floor.

How do I fix cracked beam?
How do I fix cracked beam?
How do I fix cracked beam?
REPLIES (7)
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Steve from Cozybuilt Homes in Delta
Date/Time5/4/2014 at 3:40:25 AM

Are you sure it needs to be replaced? It is common for beams to crack as they dry out, and this is not generally a problem if the beam is not bowed and laying flat (straight) as you describe.

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Date/Time5/4/2014 at 6:31:33 AM

You can't fix it. Has to be replaced if it's bad enough to warrant it.

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Mark from CMJ Renovations in Oakville
Date/Time5/4/2014 at 7:05:16 AM

Hi Kelly

Steve and Daniel are both correct. If the beam is just splintering then leave it alone, it is probably just the effects of age. If it is a large visible crack due to stress you may want to put a steel plate on it to sister it from getting worse and put a jack post underneath it. Then call a structural engineer to determine what is going on. An engineer will be able to tell you your best course of action.

Good Luck

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Date/Time5/4/2014 at 3:16:40 PM

Hi Steve.

Everyone is correct regarding the existing beam.

I should point out however that beams should be laid bottom to top, not side to side. The thicker the material, the more structural integrity. Run a laser from end to end. If there is no bowing, and it is some simple splintering then leave it.

If there is bowing evident, I would replace it with a proper engineered I beam.

Hope it works out,

James Fram

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Date/Time5/8/2014 at 3:19:52 PM

Just replace for new ones wood or steel.

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Date/Time5/9/2014 at 9:49:55 AM

I don't think your "beam" is structural. First if it was then it would be supported on your exterior foundation wall. Second, a beam is always layed with the longest width running up and down, yours is layed flat by the looks of the picture. More than likely someone has added this after the house was built.

Now I wouldn't remove it until you find out why they put it in the first place. Most likely a very poor attempt to repair another problem.

I would get in a contractor to take a look at it.

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Date/Time5/9/2014 at 7:34:48 PM

I have a beam that runs across the span of my 21ft house. 18.9 ft into the 28.9 full length of my house. This beam lays flat and has a crack between the two current jack posts. How do I fix it?

This beam runs from one end, not supported on the cinder block framing. It runs about 22 feet in length, nailed to the bottom of the floor joists. Supported by two jack posts and a piece of warped lumber. I don't know if this supports my second floor or the walls for my main floor.

Firstly the photos don't reveal enough info.

1. What are the dimensions of the beam?

2. How old is the house? How long have you owned it?

3. Have you noticed and cracks in walls and or at door frames, floor slope, bounce in floor when walked, doors not closing (binding) because the door frame is not square?

4. Last two photos - is that a support column? If so the beam appears to crushed at the top of the column bearing plate.

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