Timeline for Can my house support a bathroom addition?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Feb 28, 2020 at 17:33 | comment | added | badfun | 2x10's will definitely make a difference, but you still need to calculate the load based on both tubs being full at the same time, to be on the safe side. Also you need to consider deflection if you are going to be laying tiles. Take a look at the discussion here: forums.jlconline.com/forums/forum/jlc-online-expert-forums/… | |
| Feb 13, 2020 at 21:04 | comment | added | isherwood | You'd think the tub is only being supported by two until you realize that the subfloor (and any X-bracing below) help transfer load to the adjacent joists, too. | |
| Feb 13, 2020 at 21:02 | comment | added | clwhoops44 | @isherwood and crew, I was mistaken when I said 2x8s. I just measured them and they are 2x10s, spanning 14 feet. If the bathtub is laid parallel with the joists, so that it is being supported by only two, do you feel that is acceptable? | |
| Jan 17, 2020 at 22:53 | comment | added | Jasen | over time? most tubs spend 90% of the time empty. | |
| Jan 17, 2020 at 22:40 | comment | added | Sherwood Botsford | Also depends on the joist spacing. Part of our house has 2x8 joists 12 foot span, but they are on 12" centres. 16" is more common. I did one house with 4 foot span -- wanted the look for the main room below: But I did the floor with 2" T&G pine. | |
| Jan 17, 2020 at 21:45 | comment | added | isherwood | It really depends on span. Most homes from the 1950s to the 1980s had 2x8 or 2x10 joists, and they aren't all sway-backed. I'd consider 2x8s fine out to about 10 feet. | |
| Jan 17, 2020 at 21:26 | history | answered | badfun | CC BY-SA 4.0 |