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Horizontal support structures beneath the floor running between load bearing walls.

1 vote
Accepted

Are outer joists a different distance in "on center" floor framing?

Framing a wall or floor the two outer studs or joists are moved in to compensate for the end of the interval. If you are going for an exact dimension divisible by 4'. …
ArchonOSX's user avatar
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2 votes

How to improve wooden joists without removing them

No matter what method you use to strengthen these joists, you will have to jack them up from down below before adding your sister joists or maybe flat steel to the sides of them. …
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1 vote

Cracked Rim Joist, Not Sure if I Should Care?

The perimeter board on my house is just OSB attached to the ends of the floor joists. … The floor joists carry the load of the floor to the sill plate that is then transferred to the foundation for the structural load of the house. …
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3 votes

Can I run NM 12 ga circuits on a running board or MultiCable Staples across floor joists use...

According to NEC 334.15(C) you can run NM cable on running boards exposed in a basement. 304.4(D) refers to running parallel to framing members but the stackable cable clamps could be consider support …
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17 votes
Accepted

Is notching a flange on an I-Joist ever acceptable?

Point your home builder to page 9 of Weyerhauser's I-joist document. See the bottom right of the page where it says "DO NOT cut or notch flange". It is typical of all I-joist manufacturers' installati …
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0 votes

Fixing noise from floor framing

It is normally there just to stabilize the joists and keep them plumb before the subfloor sheathing is attached to the joists. … I would make sure the blocking is screwed tightly to the joists before closing up the floor. Then glue and screw the subfloor sheathing down tight to the joists. …
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3 votes

Load capacity of 2x4s spaced 16"

Span tables or the referenced calculator include standard dead load and live load weights per square foot and standard deflections for floor joists to keep the floor from flexing too much as you walk across …
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1 vote

How Do Houses Prevent a Water Buildup in the Flooring?

How does this standard design allow this excess water to be shed by the house? You are correct in seeing the flaw in a plastic vapor barrier. It doesn't allow the house to breathe. I personally d …
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