Floor Joist Cracked
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Crack along floor Joist in crawl space. Another similar on the same joist further down. Major issue or simple fix? Suggestions?
repair wood basement flooring
edited 2 days ago
isherwood
43.3k453108
asked 2 days ago
Mike C
212
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Mike C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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show 11 more comments
up vote
2
down vote
favorite
Crack along floor Joist in crawl space. Another similar on the same joist further down. Major issue or simple fix? Suggestions?
repair wood basement flooring
edited 2 days ago
isherwood
43.3k453108
asked 2 days ago
Mike C
212
New contributor
Mike C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
I doubt it's 2 inches thick unless your home is more than 80 years old. What am I seeing along the bottom if not a rabbet? Just a dirt line?
– isherwood
2 days ago
1
"It's the soup of the day." I realize the joist spans the house. How many feet and inches is that?
– isherwood
2 days ago
2
Also curious about the dirt line to the left...
– Aloysius Defenestrate
2 days ago
2
I didn't mean the pipe. There's a brownish horizontal line that corresponds with the crack. I initially saw that as a shadow in a rabbet. Now I see that it's just discoloration or maybe the crack itself.
– isherwood
2 days ago
3
If it's sagging you can just use a jack with a post to carefully lift the joist back to level (make a T-bar to cross several joists and lift until they come to the same plane). You can then sister a joist to one or both sides - drill and lag bolt with big washers and construction adhesive. Job done. From the pictures it doesn't look worth the effort, to be honest.
– J...
2 days ago
|
show 11 more comments
up vote
2
down vote
favorite
up vote
2
down vote
favorite
Crack along floor Joist in crawl space. Another similar on the same joist further down. Major issue or simple fix? Suggestions?
repair wood basement flooring
edited 2 days ago
isherwood
43.3k453108
asked 2 days ago
Mike C
212
New contributor
Mike C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Crack along floor Joist in crawl space. Another similar on the same joist further down. Major issue or simple fix? Suggestions?
repair wood basement flooring
repair wood basement flooring
edited 2 days ago
isherwood
43.3k453108
asked 2 days ago
Mike C
212
New contributor
Mike C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 2 days ago
isherwood
43.3k453108
asked 2 days ago
Mike C
212
New contributor
Mike C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 2 days ago
isherwood
43.3k453108
edited 2 days ago
isherwood
43.3k453108
edited 2 days ago
isherwood
43.3k453108
43.3k453108
asked 2 days ago
Mike C
212
New contributor
Mike C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
Mike C
212
asked 2 days ago
Mike C
212
212
New contributor
Mike C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Mike C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Mike C is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
I doubt it's 2 inches thick unless your home is more than 80 years old. What am I seeing along the bottom if not a rabbet? Just a dirt line?
– isherwood
2 days ago
1
"It's the soup of the day." I realize the joist spans the house. How many feet and inches is that?
– isherwood
2 days ago
2
Also curious about the dirt line to the left...
– Aloysius Defenestrate
2 days ago
2
I didn't mean the pipe. There's a brownish horizontal line that corresponds with the crack. I initially saw that as a shadow in a rabbet. Now I see that it's just discoloration or maybe the crack itself.
– isherwood
2 days ago
3
If it's sagging you can just use a jack with a post to carefully lift the joist back to level (make a T-bar to cross several joists and lift until they come to the same plane). You can then sister a joist to one or both sides - drill and lag bolt with big washers and construction adhesive. Job done. From the pictures it doesn't look worth the effort, to be honest.
– J...
2 days ago
|
show 11 more comments
1
I doubt it's 2 inches thick unless your home is more than 80 years old. What am I seeing along the bottom if not a rabbet? Just a dirt line?
– isherwood
2 days ago
1
"It's the soup of the day." I realize the joist spans the house. How many feet and inches is that?
– isherwood
2 days ago
2
Also curious about the dirt line to the left...
– Aloysius Defenestrate
2 days ago
2
I didn't mean the pipe. There's a brownish horizontal line that corresponds with the crack. I initially saw that as a shadow in a rabbet. Now I see that it's just discoloration or maybe the crack itself.
– isherwood
2 days ago
3
If it's sagging you can just use a jack with a post to carefully lift the joist back to level (make a T-bar to cross several joists and lift until they come to the same plane). You can then sister a joist to one or both sides - drill and lag bolt with big washers and construction adhesive. Job done. From the pictures it doesn't look worth the effort, to be honest.
– J...
2 days ago
1
1
I doubt it's 2 inches thick unless your home is more than 80 years old. What am I seeing along the bottom if not a rabbet? Just a dirt line?
– isherwood
2 days ago
I doubt it's 2 inches thick unless your home is more than 80 years old. What am I seeing along the bottom if not a rabbet? Just a dirt line?
– isherwood
2 days ago
1
1
"It's the soup of the day." I realize the joist spans the house. How many feet and inches is that?
– isherwood
2 days ago
"It's the soup of the day." I realize the joist spans the house. How many feet and inches is that?
– isherwood
2 days ago
2
2
Also curious about the dirt line to the left...
– Aloysius Defenestrate
2 days ago
Also curious about the dirt line to the left...
– Aloysius Defenestrate
2 days ago
2
2
I didn't mean the pipe. There's a brownish horizontal line that corresponds with the crack. I initially saw that as a shadow in a rabbet. Now I see that it's just discoloration or maybe the crack itself.
– isherwood
2 days ago
I didn't mean the pipe. There's a brownish horizontal line that corresponds with the crack. I initially saw that as a shadow in a rabbet. Now I see that it's just discoloration or maybe the crack itself.
– isherwood
2 days ago
3
3
If it's sagging you can just use a jack with a post to carefully lift the joist back to level (make a T-bar to cross several joists and lift until they come to the same plane). You can then sister a joist to one or both sides - drill and lag bolt with big washers and construction adhesive. Job done. From the pictures it doesn't look worth the effort, to be honest.
– J...
2 days ago
If it's sagging you can just use a jack with a post to carefully lift the joist back to level (make a T-bar to cross several joists and lift until they come to the same plane). You can then sister a joist to one or both sides - drill and lag bolt with big washers and construction adhesive. Job done. From the pictures it doesn't look worth the effort, to be honest.
– J...
2 days ago
|
show 11 more comments
2 Answers
2
active
oldest
votes
up vote
6
down vote
tl;dr It's probably just a localized weakness and not a serious problem.
I suspect that the joist cracked due to 1) the off-color streak we see, which may be heartwood, and 2) the knot. Both are very weak points in the wood that wouldn't normally be a problem, but their unfortunate proximity combined to dramatically weaken the wood.
The outstanding question is whether there's undue stress on that particular joist, causing sag and severe tension on the bottom edge. We can't say much about that through this little hole in the internet.
answered 2 days ago
isherwood
43.3k453108
1
Thanks for feedback! Appreciate it. I will have my handyman check it out next time as well. Just moved into older house so checking off some things I see. We had water in crawl space (same area) this week due to heavy rain. Not standing but just wanted to make sure structure is sound.
– Mike C
2 days ago
add a comment |
up vote
0
down vote
I’m always surprised how people can look at a structural failure and determine that it’s “not a serious problem.” I have to calculate the load to determine if it’s serious. YOU HAVE A FAILURE. Do not ignore it.
A 12’ span is not extreme, but those joist seem extra large for normal construction. If they’re more than 2x12 at 16” o.c., then the designer was trying to do something special.
Is there something special above those joist: like a hot tub, waterbed, etc.? Make sure you follow through and have it checked out. At a minimum I’d fix the support for the pipe. That sagging could put stress on other joints.
answered 14 hours ago
Lee Sam
8,5503613
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
6
down vote
tl;dr It's probably just a localized weakness and not a serious problem.
I suspect that the joist cracked due to 1) the off-color streak we see, which may be heartwood, and 2) the knot. Both are very weak points in the wood that wouldn't normally be a problem, but their unfortunate proximity combined to dramatically weaken the wood.
The outstanding question is whether there's undue stress on that particular joist, causing sag and severe tension on the bottom edge. We can't say much about that through this little hole in the internet.
answered 2 days ago
isherwood
43.3k453108
1
Thanks for feedback! Appreciate it. I will have my handyman check it out next time as well. Just moved into older house so checking off some things I see. We had water in crawl space (same area) this week due to heavy rain. Not standing but just wanted to make sure structure is sound.
– Mike C
2 days ago
add a comment |
up vote
6
down vote
tl;dr It's probably just a localized weakness and not a serious problem.
I suspect that the joist cracked due to 1) the off-color streak we see, which may be heartwood, and 2) the knot. Both are very weak points in the wood that wouldn't normally be a problem, but their unfortunate proximity combined to dramatically weaken the wood.
The outstanding question is whether there's undue stress on that particular joist, causing sag and severe tension on the bottom edge. We can't say much about that through this little hole in the internet.
answered 2 days ago
isherwood
43.3k453108
1
Thanks for feedback! Appreciate it. I will have my handyman check it out next time as well. Just moved into older house so checking off some things I see. We had water in crawl space (same area) this week due to heavy rain. Not standing but just wanted to make sure structure is sound.
– Mike C
2 days ago
add a comment |
up vote
6
down vote
up vote
6
down vote
tl;dr It's probably just a localized weakness and not a serious problem.
I suspect that the joist cracked due to 1) the off-color streak we see, which may be heartwood, and 2) the knot. Both are very weak points in the wood that wouldn't normally be a problem, but their unfortunate proximity combined to dramatically weaken the wood.
The outstanding question is whether there's undue stress on that particular joist, causing sag and severe tension on the bottom edge. We can't say much about that through this little hole in the internet.
answered 2 days ago
isherwood
43.3k453108
tl;dr It's probably just a localized weakness and not a serious problem.
I suspect that the joist cracked due to 1) the off-color streak we see, which may be heartwood, and 2) the knot. Both are very weak points in the wood that wouldn't normally be a problem, but their unfortunate proximity combined to dramatically weaken the wood.
The outstanding question is whether there's undue stress on that particular joist, causing sag and severe tension on the bottom edge. We can't say much about that through this little hole in the internet.
answered 2 days ago
isherwood
43.3k453108
answered 2 days ago
isherwood
43.3k453108
answered 2 days ago
isherwood
43.3k453108
answered 2 days ago
isherwood
43.3k453108
43.3k453108
1
Thanks for feedback! Appreciate it. I will have my handyman check it out next time as well. Just moved into older house so checking off some things I see. We had water in crawl space (same area) this week due to heavy rain. Not standing but just wanted to make sure structure is sound.
– Mike C
2 days ago
add a comment |
1
Thanks for feedback! Appreciate it. I will have my handyman check it out next time as well. Just moved into older house so checking off some things I see. We had water in crawl space (same area) this week due to heavy rain. Not standing but just wanted to make sure structure is sound.
– Mike C
2 days ago
1
1
Thanks for feedback! Appreciate it. I will have my handyman check it out next time as well. Just moved into older house so checking off some things I see. We had water in crawl space (same area) this week due to heavy rain. Not standing but just wanted to make sure structure is sound.
– Mike C
2 days ago
Thanks for feedback! Appreciate it. I will have my handyman check it out next time as well. Just moved into older house so checking off some things I see. We had water in crawl space (same area) this week due to heavy rain. Not standing but just wanted to make sure structure is sound.
– Mike C
2 days ago
add a comment |
up vote
0
down vote
I’m always surprised how people can look at a structural failure and determine that it’s “not a serious problem.” I have to calculate the load to determine if it’s serious. YOU HAVE A FAILURE. Do not ignore it.
A 12’ span is not extreme, but those joist seem extra large for normal construction. If they’re more than 2x12 at 16” o.c., then the designer was trying to do something special.
Is there something special above those joist: like a hot tub, waterbed, etc.? Make sure you follow through and have it checked out. At a minimum I’d fix the support for the pipe. That sagging could put stress on other joints.
answered 14 hours ago
Lee Sam
8,5503613
add a comment |
up vote
0
down vote
I’m always surprised how people can look at a structural failure and determine that it’s “not a serious problem.” I have to calculate the load to determine if it’s serious. YOU HAVE A FAILURE. Do not ignore it.
A 12’ span is not extreme, but those joist seem extra large for normal construction. If they’re more than 2x12 at 16” o.c., then the designer was trying to do something special.
Is there something special above those joist: like a hot tub, waterbed, etc.? Make sure you follow through and have it checked out. At a minimum I’d fix the support for the pipe. That sagging could put stress on other joints.
answered 14 hours ago
Lee Sam
8,5503613
add a comment |
up vote
0
down vote
up vote
0
down vote
I’m always surprised how people can look at a structural failure and determine that it’s “not a serious problem.” I have to calculate the load to determine if it’s serious. YOU HAVE A FAILURE. Do not ignore it.
A 12’ span is not extreme, but those joist seem extra large for normal construction. If they’re more than 2x12 at 16” o.c., then the designer was trying to do something special.
Is there something special above those joist: like a hot tub, waterbed, etc.? Make sure you follow through and have it checked out. At a minimum I’d fix the support for the pipe. That sagging could put stress on other joints.
answered 14 hours ago
Lee Sam
8,5503613
I’m always surprised how people can look at a structural failure and determine that it’s “not a serious problem.” I have to calculate the load to determine if it’s serious. YOU HAVE A FAILURE. Do not ignore it.
A 12’ span is not extreme, but those joist seem extra large for normal construction. If they’re more than 2x12 at 16” o.c., then the designer was trying to do something special.
Is there something special above those joist: like a hot tub, waterbed, etc.? Make sure you follow through and have it checked out. At a minimum I’d fix the support for the pipe. That sagging could put stress on other joints.
answered 14 hours ago
Lee Sam
8,5503613
answered 14 hours ago
Lee Sam
8,5503613
answered 14 hours ago
Lee Sam
8,5503613
answered 14 hours ago
Lee Sam
8,5503613
8,5503613
add a comment |
add a comment |
Mike C is a new contributor. Be nice, and check out our Code of Conduct.
Mike C is a new contributor. Be nice, and check out our Code of Conduct.
Mike C is a new contributor. Be nice, and check out our Code of Conduct.
Mike C is a new contributor. Be nice, and check out our Code of Conduct.
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1
I doubt it's 2 inches thick unless your home is more than 80 years old. What am I seeing along the bottom if not a rabbet? Just a dirt line?
– isherwood
2 days ago
1
"It's the soup of the day." I realize the joist spans the house. How many feet and inches is that?
– isherwood
2 days ago
2
Also curious about the dirt line to the left...
– Aloysius Defenestrate
2 days ago
2
I didn't mean the pipe. There's a brownish horizontal line that corresponds with the crack. I initially saw that as a shadow in a rabbet. Now I see that it's just discoloration or maybe the crack itself.
– isherwood
2 days ago
3
If it's sagging you can just use a jack with a post to carefully lift the joist back to level (make a T-bar to cross several joists and lift until they come to the same plane). You can then sister a joist to one or both sides - drill and lag bolt with big washers and construction adhesive. Job done. From the pictures it doesn't look worth the effort, to be honest.
– J...
2 days ago