Do i need to glue plywood on top of wooden floor for Toilet

[lianne143]

Hi

When we moved into this semi detached house. The childs bedroom was already converted into toilet in the first floor. So we were happy to live with this two bedroom house.Now we are in need of another bed room. so iam planning to convert the existig toilet back to childs bed room and move the toilet to the bolier room where there is sufficient space to install a shower and toilet.

When i removed the carpet in the boiler room i noticed a wooden sub floor.
I intrested in having a vinyl flooring after i build the new toliet room.

1) Do i need to install a plywood on the top of the wooden floor, and then the vinyl flooring. If thats the case do i need to glue the plywood to the wooden floor?
2) If i glue the plywood ,how do i access the shower and toilet if there is a leak.
3) What size of plywood is recommended?

Please give me some good ideas. This is the first DIY whic iam doing it
myself.

Thanks

Lianne

 

[foxhole]

You would screw the ply to boards, the shower cubicle would be above the floor , but if installed correctly then there will be no leaks.

 

[JohnD]

"if"

 

[lianne143]

What size of plywood would be better. Also i have to run a common sewage pipe for toilet shower and wash basin.Please let me know the size of the sewage pipe that needs to be installed under the wooden subfloor.The distance between the new toilet and the sewage exit that connects outside drain is about 20 feet.



Thanks

 

[foxhole]

Depends if you have sufficient drop to run the waste pipe, bit of a risk for a first diy project, you would be wise to consult a local plumber for advice as to whether what you propose is feasible.

 

[lianne143]

At first instance i had called in a local plumber and quoted too much which i cant really spend on it. During his visit he lifted the carpet had a look the wooden floor and told me that it is possible to run sewage pipe under the floor. Pls tell me what pipe size would be normally suitable to run below the floor.

 

[foxhole]

110mm soil pipe.
http://www.bes.co.uk/products/130a.asp