Here's How Carpenters Used 48 Inch on Center Floor Joist - Old House Construction

[@RLTango]

Subscribed! Thanks for the content. My 1966 home has 4x6 at 48" oc, with 1-1/8 T&G. It's a beast to work on and expensive to repair. The matrrial choice is a sign of the times unfortunately. All my studs are labeled "Kiln Dried" too.

[@wintercook2]

My 1959 redwood framed house has 4 X 6 girders 48" oc, 2 X 6 t & g subfloor. There is a concrete perimeter foundation, but my 17 lb dog shakes the table when she trots by. We live in a wet area, so there may be some foundation settling, but I'm thinking I will do 16" oc floor joists for the next house I build.

[@BlumpkinSpiceLatte]

I've seen this with log houses where they'll use log joists 48"OC and the t&g subfloor above will double as the ceiling below so you get a t&g ceiling with an exposed log joist. Looks fantastic when done right but I don't know that I could think of a reason to do anything like that on a stick built.

[@gregvancom]

Yes it does:)

[@SaerTurner-wn2qh]

19.2 is engineered joists only using 19/32 ply wood tung and groove only .. teh 4 foot on center goes back to the roman days full stock lumber and was used up to the mid 70s and it was cost of lumber that put an end to that but also we stopped doing balloon construction where all the load was carried on the center line wall and the exterior walls ..

[@Davey768]

48"oc maybe kinda excessive, but I don't see why you'd go below 24"oc.

[@Carl-LaFong1618]

I'm thinking of adding on a family room with a 10ft ceiling. (rest of the house is 8ft) How will I tie in the new roof to the original if it's going to be higher? Thanks.

[@rack9458]

In regards to floor systems, dont skimp on framing!

[@jamesoncross7494]

NOPE!

[@Jay-tk7ib]

Not for me.