Freestanding bath.

[darren6645]

Looking at fitting the bath below. It will be going where the previous bath was which was p shape with a sliding enclosed screen fitted adding approx 20kgs to the weight of the bath. The bath was sat on a timber support on three sides as well as the 4 supporting feet below.
This bath is 1500mm so it will be freestanding. There's a joist running against the back wall the length of the bath and another just outside the outer edge of the bath but they both run parallel to the bath.
Floor is in good condition, osb boards and I will be fitting laminate on top of this.
The bath is acrylic and with the frame weighs 40kg empty. The frame has three feet on each end and the frame sits on the floor below these feet.
Would or should I need any floor reinforcement to take this bath, thinking about it with water and a person in, it will be on the first floor.

 

[denso13]

Would or should I need any floor reinforcement to take this bath, thinking about it with water and a person in, it will be on the first floor.

No, only if the floor is in really poor condition.

 

[Madrab]

Is the OSB, OSB3 and is it 22mm?

I presume there is a joist running the length of the middle of the bath too? So say 400mm joist centres?

 

[foxhole]

You are swopping baths , very little difference in the load.

 

[darren6645]

Is the OSB, OSB3 and is it 22mm?

I presume there is a joist running the length of the middle of the bath too? So say 400mm joist centres?

I don't think there is but I'll check that and the osb when I'm home, thanks.

 

[darren6645]

You are swopping baths , very little difference in the load.

Yeah the bath will be similar weight but with this being free standing and the other bath sitting on a frame around three walls, I was thinking the load would be different or maybe I'm not understanding it properly?

 

[denso13]

Yeah the bath will be similar weight but with this being free standing and the other bath sitting on a frame around three walls, I was thinking the load would be different or maybe I'm not understanding it properly?

It will be fine. A lot of baths only sit on 4 small legs with no issues, generally.

 

[arpit]

You probably don’t need full reinforcement, but adding ply and making sure the load is well distributed is good practice and gives peace of mind.

If it were mine, I’d add ply + noggins and call it done.

 

[Madrab]

I don't think there is but I'll check that and the osb when I'm home, thanks.

I wouldn't think that the joists centres would be 800mm which is what they would be roughly, if the bath width is 750mm and the joist is sitting just outside the edge of it and they are running in line with the bath. So would think there would be another between the one @ the wall and the one on the outside edge.

If there isn't then I'd look to add braces between them to avoid deflection.

 

[foxhole]

Frame is for stability, legs take weight .

 

[darren6645]

I wouldn't think that the joists centres would be 800mm which is what they would be roughly, if the bath width is 750mm and the joist is sitting just outside the edge of it and they are running in line with the bath. So would think there would be another between the one @ the wall and the one on the outside edge.

If there isn't then I'd look to add braces between them to avoid deflection.

I agree with what your say I'll check tonight when I'm home. Thanks.

 

[denso13]

I agree with what your say I'll check tonight when I'm home. Thanks.

A normal domestic floor is designed to easily carry the weight. Again, unless the floor is sub-standard, it is absolutely fine.

 

[Madrab]

A normal domestic floor

Cant say I've seen many domestic floors done in OSB, maybe different down south tho

 

[denso13]

Cant say I've seen many domestic floors done in OSB, maybe different down south tho

Neither have I, but UK domestic floors have design loads which make the OP's bath ok.

Unless, again, the floor is sub-standard of course.

 

[Madrab]

There's a joist running against the back wall the length of the bath and another just outside the outer edge of the bath but they both run parallel to the bath.

Hence the question to check there's is a joist in between for all it takes. I would presume there is one but always best to check. Wouldn't be the first time I've seen dodgy floor joist spacing though. Seeing what I've seen in my time, personally I would never assume.