Home made wet room tray

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quintain

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Hi, has anyone got advice on how I can put in a purpose/home made wet room floor or a shower tray in my 1840s UK house rather than paying many £100s for it. Size of tray about 30" wide and 8' long (750mm x 2.4m) but can be altered to suit materials and best practice.
It will sit at ground floor level onto 6" x 1" (150 x 25mm) butt jointed floorboards which are supported by 7 " x 2" (175 x 50mm) joists which are just above ground/dirt level.
It will be located in a corner of a room adjacent to plastered stone walls.
Space allows 1 1/2" or 2" drain pipe run of about 10ft (3m) to outside wall.
I am imagining a tile floor with shower wall boards but I am interested in all ideas.

Please forgive me for picking your brains on this matter.
 

Bingy man

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Although I’ve done a multitude of showers I’ve never done a wet room as such due the majority being on the 1st or second floor : for that reason I’d go with a shower tray of a suitable size for your needs . I would tile the floor 1st using the appropriate adhesive for a wooden floor ( 12 mm ply over the existing flooring) unless it’s sound and solid ( good condition etc) screwed every 12-14 inches- take care to check for existing pipes and cables. You will probably need to prime the plywood prior to laying tiles- Most showers run of a 1.1/2 waste pipe so make allowance for this . Tile the floor and grout it 24/48 hrs after laying tiles . Install shower tray on a raised platform ( so you can access the trap for maintenance) -as for the walls if again the plaster is in sound condition I would again prime the walls with a suitable primer ( not Pva) then tile walls using water proof adhesive/ waterproof grout install shower cubicle/ shower and your done . You will have a shower that you can maintain and should give you years of service. One final point is if you are in a hard water area then consider fitting a ( whole house ) lime scale reducer.. hope this is of use to your project.😊😊
 

Jameshow

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Useful reliable advice here ..

Fall should be at least 1% but I would go for 2% tbh. Or 20mm per meter.

If the joists are well supported you can cut the joists by an inch or so.

Marine ply floor with rubber waterproofing running up under tiles over cement boards (not plasterboard)
Waterproof tile adhesive.


Or use one of these??
 
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