Guide 1 - Wetroom Design Planner

Wetrooms are the modern, stylish, minimalist way to add a shower to virtually any space.   Many Wetroom designs can be seen in glossy magazines, on-line or on TV that can give the impression you need loads of space and will have to spend many thousands to get your dream shower space.

DIY Wetroom is here to show you how you can transform even the most modest space in to the luxurious bathroom or en-suite.

Planning the Perfect Wetroom

Conventional bathroom design can be thrown out of the window, with a Wetroom your imagination can run wild.  The options are wide and variable and here is a way your designs can be created.  Simply download and print out the two page pdf to get started.

Print out the Wetroom designer planner sheets

Download and print the Wetroom planner PDF.

Draw you room size, door and windows 

Cut out and position the wetroom items

Plan and position a screen (if you need one)

Find all the correct items you need in the DIY Wetroom store.


See Below for some practical wetroom design guidance 


Wetroom Design Inspiration

Here are a few designs to show what can be done in a variety of rooms to give you a few ideas.


Conversion of an existing bathroom

wetroom shower replacing bathA wetroom shower replacing a bath in a typical bathroom

Take out tank to have shower and bathHot Water tank removed to have both

Corner bath and wetroom showerCorner bath leaves a large shower area

A few step down to tiny

Keeping a bath in a smaller roomWith no shower tray space is maximised

Folding screens give more roomScreens can fold away leaving the full floor area clear

No bath for a ensuiteA large shower area in a small space

Even smaller wetroomYes you can go even smaller

Wetroom in corner of built in cupbardsBeing creative in the width of built in wardrobes

Long and narrow wetroomWash and Go in your fitted bedroom

Corner toilet and sink wetroomTiny wetroom but practical


You could even fit a wetroom shower under your stairs! 


A few more ideas for inspiration


Using screens to keep areas dryNo need to shower in a corner, hinged flippers on screens

Simple free standing wetroom screenKeeping it simple in a small space

Shower screen door making a cubicleMake a cubicle by adding a glass screen door

large bath possible with wetroom showerWetroom design to allow space for large whirlpool bath

Free standing bath in wet roomGet really creative with the possibilities



Don't limit your imagination

Wetroom in a bedroomWet spaces in rooms rather than separate wetrooms


Practical Wetroom Design Considerations

Guiding Principles for Wetroom Design

These are not “hard and fast” rules but a few things you might want to consider are: 

  • Windows are best kept outside the “wet area” this is for privacy as well practicalities.
  • Try and avoid having the toilet as the first thing you see when you come through the door. 
  • If possible try and keep access to the toilet and sink as a dry space.
  • A large shower area is also comfortable to dry off in so you don’t need a separate space for this.



Don’t worry about the practicalities of the drainage and pipe runs etc. at this early stage our kits handle most situations.  Virtually anything is possible.  Drainage details and options are discussed in GUIDE 4.

Plumbing and the Wetroom Shower

DIY Wetroom does not supply the hardware for the shower mixers or heads. What we do is supply the materials you might need to free your imagination. With our tile board you can construct “false walls” easily.

Type of floor – Suspended timber, floor boards, chipboard, solid concrete, don’t worry about that yet, there are options for all types. Read more about wet room floors GUIDE 2.

Splashing where you don’t want it  

If you have a big big room you might not need a screen.

In smaller rooms a screen (or wall) will keep your other fittings, towels and toilet paper dry. 

Sinks and toilets can be in wet areas, but most people prefer a screen to separate them from the splash zone. 

Free standing baths can be and often are in the splash zone. Baths with side panels are best kept out of the splash zone so water doesn’t get trapped behind the panels

Wetroom Splash pattern radius

Main wet drainage area size – where does most of the water go? What floor area needs to slope towards the drain? 

The shower pressure and head size and the mounting of the head e.g.Wall mounted or overhead influence where the showering water goes.

With so many variables, we have used the typical spread from a ceiling mounted, “monsoon” type head as a working guide. The stream of water flowing from the shower and off the body is approximately 1m diameter (500mm radius) at floor level.  The Splashing area is approximately 2m diameter at floor level.

See the guide to wetroom floors for more details GUIDE 2. 

Minimum showering area

The bigger the showering area the more luxurious.  Most people will feel able to shower in a 700mm x 700mm area.  A rectangular area 700mm x 900m is much more comfortable. On the Wetroom design PDF guide we indicate an 800 x 800mm square

Wet Room Floor Former size

The smallest floor former (sloping deck to give a fall to the drain) is 800 x 800mm and may be cut to size.

The total wet floor area can be reduced by walls or screens.  When the screen is not sealed to the floor it is recommended that the sloping floor area extends 30mm beyond the screen

The splash zone 1m radius can be flat but must be tanked and tiled.

Wetroom Screens

Simple glass screens reduce the wet floor area and splash zones.  A screen is used to keep the rest of the room dry it could be a short screen to stop most splashing on to toilets and basins etc.

Or a medium sized screen to keep the most of the floor space dry.

Or large screens with flippers or doors to construct a cubicle.  

See The DIYWetroom Screen Range

short screenSmall screen - keeps towels dry

Shower screenLarger screens - drier floor area

Shower screen away from a cornerScreens can go anywhere

Added flipper screenIncrease screen cover with a hinged flipper

Shower cubicleAdd a door to make cubicle

Fold away showerHinged screens to free the space


Lose a bath or have both

With a wetroom you might be able to retain the bath (unlike with a shower cubicle). Free standing baths can be included in the wet area.

En-suite or in the bedroom. 

A wetroom with screen or wall allows the creation of practical en-suite without constructing a separate room.  It is possible to create an en-suite in a very small area.



Print off the PDF and play around with  your wetroom ideas.


All kits, tanking /waterproofing products screens and doors are available from the DIYwetroom store


Other wetroom guides here