We’re finally doing it!!

[dukeboy440]

Not a carpenter or framer, but are you talking about these?

View attachment 1716487941

If so, I've had two houses with 'em (which includes the current place), and two without. Both places that had/have 'em have creaking and sagging floors, while the floors were dead silent and level in the homes that had "standard" 2x floor joists and/or "floor trusses" (if that's the right term).

I really don’t mean to add to Duke's workload, but if this were my place, I'd cross-bridge the hell out of 'em (because they DO twist under a load), and hope like hell they don't sag and/or crack with age.

They’ll do that if they’re undersized for the span.

These are 14 7/8 vs the 11 7/8 the plans called for and they’re supported every 15 feet by load bearing walls. That’s roughly 1/3rd of their rated max span.

I also modified the plans for the walls above to be directly on top of the load bearing walls underneath the joists.

That said, yes they’ll get braced laterally as well

 

[ProjectBazza]

They’ll do that if they’re undersized for the span.

These are 14 7/8 vs the 11 7/8 the plans called for and they’re supported every 15 feet by load bearing walls. That’s roughly 1/3rd of their rated max span.

I also modified the plans for the walls above to be directly on top of the load bearing walls underneath the joists.

That said, yes they’ll get braced laterally as well

God, I sure hope you have better luck with them than we have! In our current place we have the 12” beams spaced 16” OC, and in a 12’ wide span (mechanical room) I’ve had to cut “inserts” and glue and nail them to the beams directly underneath both the fridge and the washer & drier, as they had twisted, cracked, and popped. Maybe they got wet before we bought the place, I don’t know, but I’m certainly not a fan of them.

Sincerely hope they perform better for you than they have for us!

 

[RustyRatRod]

Comin along real nice! ...and quick!

 

[dukeboy440]

God, I sure hope you have better luck with them than we have! In our current place we have the 12” beams spaced 16” OC, and in a 12’ wide span (mechanical room) I’ve had to cut “inserts” and glue and nail them to the beams directly underneath both the fridge and the washer & drier, as they had twisted, cracked, and popped. Maybe they got wet before we bought the place, I don’t know, but I’m certainly not a fan of them.

Sincerely hope they perform better for you than they have for us!

View attachment 1716488037

They should have X bracing under appliance areas. And yeah, it’s possible they got wet.

Guess we shall see.