Raising Bathroom floor on existing joists and floorboards
 

We have just stripped out our old exisiting bath suite. (All was leaking).
We are rearranging the location of bath, sink and loo to accomodate new
suite.

The bathroom is quite small, and to be able to hide soil, waste and copper
pipes the walls would need to be built out.

If we raised the floor by 20cms this would hide all pipes.
(The existing floor is joists and floorboards. The old bath suite had a
cast iron bath, so can take weight.)

How do we do this?

Raising Bathroom floor on existing joists and floorboards
 

On Sat, 6 Jan 2007 02:16:39 +0800 Lisa Bates wrote :
If we raised the floor by 20cms this would hide all pipes.
(The existing floor is joists and floorboards. The old bath
suite had a cast iron bath, so can take weight.)

How do we do this?

The easiest way will be to fix some bearers, say 50x75, across the
existing joists (i.e following the line of the floorboards) at
900-1200c/s and then 50x100 joists above them at right angles. You
can then run pipes under the floor in either direction without
notching. Finish with moisture resisting chipboard or ply.

If you need to lose a WC branch within the floor adjust the sizes
accordingly.

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk

Raising Bathroom floor on existing joists and floorboards
 

On Fri, 05 Jan 2007 19:47:07 GMT, Tony Bryer wrote:

|On Sat, 6 Jan 2007 02:16:39 +0800 Lisa Bates wrote :
| If we raised the floor by 20cms this would hide all pipes.
| (The existing floor is joists and floorboards. The old bath
| suite had a cast iron bath, so can take weight.)
|
| How do we do this?
|
|The easiest way will be to fix some bearers, say 50x75, across the
|existing joists (i.e following the line of the floorboards) at
|900-1200c/s and then 50x100 joists above them at right angles. You
|can then run pipes under the floor in either direction without
|notching. Finish with moisture resisting chipboard or ply.
|
|If you need to lose a WC branch within the floor adjust the sizes
|accordingly.

But remember that there are limits to the height of a step you can have.
Can't remember offhand if 8 inches is within the limit, but I think it must
be as my domestic steps are 8 inches, but check when you have full
drawings/details of the step.
Also you must leave a certain height of ceiling.
--
Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst*
method of accessing usenet. GG subscribers would be well advised get a
newsreader, say Agent, and a newsserver, say news.individual.net. These
will allow them: to see only *new* posts, a killfile, and other goodies.

Raising Bathroom floor on existing joists and floorboards
 

On Fri, 05 Jan 2007 19:58:12 +0000 Dave Fawthrop wrote :
But remember that there are limits to the height of a step you can have.
Can't remember offhand if 8 inches is within the limit, but I think it
must be as my domestic steps are 8 inches, but check when you have full
drawings/details of the step.

220mm used to be the maximum rise

Also you must leave a certain height of ceiling.

No that no longer applies. But equally from a practical pov you do want to
make sure that you can stand up in the bath and walk under light fittings.

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk

Raising Bathroom floor on existing joists and floorboards
 

Thank you very much your info. was very helpful.

Raising Bathroom floor on existing joists and floorboards
 

Thank you to, will bear all of your points in mind.

Wish me Luck!

Raising Bathroom floor on existing joists and floorboards
 

Lisa Bates wrote:
We have just stripped out our old exisiting bath suite. (All was leaking).
We are rearranging the location of bath, sink and loo to accomodate new
suite.

The bathroom is quite small, and to be able to hide soil, waste and copper
pipes the walls would need to be built out.

If we raised the floor by 20cms this would hide all pipes.
(The existing floor is joists and floorboards. The old bath suite had a
cast iron bath, so can take weight.)

How do we do this?

? just shove some new joists across the old and get flooring ?

You DO understand about plumbing 'falls' and so on don't you..relocating
a toilet is NON trivial to say the least.

Raising Bathroom floor on existing joists and floorboards
 

yes, I do, thank you for your valuable coment!