Originally Posted by oh'mike
You need to get us some sort of drawing and a photo----
We need to know the unsupported span length---and a good photo of the wood framing---cedar is weak and seldom used for structural framing---
where are you? is cedar a local wood?
Hard to know what the framing material was....no markings. It just smells like cedar and looks pinkish in color when boring through it.
The "unsupported" length would only be around 38" on the 2x8's with all the vertical framing around the doors. There are also other perpendicular walls under this floor ....the far side of the stairway at 38" from the center line of the house and another 1st floor bathroom wall about 70" from the center line, so there are many 2x4's transferring load down to the 2x10's on the first floor under the 2x8's that will support the tub.