Planning Your Bathroom Layout | More Bathrooms

21 April 2021

The first point of call when renovating your bathroom or shower room is deciding your bathroom layout.

Depending on your bathroom shape and size but also your wants and needs, your bathroom layout design should work with you to meet all of your requirements.

To help you make the most of your available space, this article breaks down how to plan a bathroom layout and all of the bathroom layout factors you need to consider.


How to plan a bathroom layout

When planning a bathroom layout there are several factors you will need to consider including the bathroom size, your budget, and preferred design.

Initially, you will need to measure your bathroom and its permanent fixtures such as your doorway, shelves and windows to find out the exact space available.

How to measure your bathroom

1.Using a measuring tape, choose your first wall and measure from the left to the right corner. Draw a line on a piece of graph paper and note down the measurement.

2.Moving clockwise, do the same for the rest of the walls in your bathroom.

3.If you have an irregular shaped bathroom e.g. L shaped, measure these areas as individual rectangles and add the measurements to your sketch.

4.Now you have your floor plan measurements, measure the height of your walls from floor to ceiling.

5.Finally measure any permanent fixtures including the doorway, windows, and shelves.

Once you have your bathroom dimensions you can play around with fixture locations, using a simple sketch. An example of a small enclosed shower room can be seen below:

You will also need to know the standard fixture sizes which can be found below:

Fixture measurements

When choosing your sanitaryware you will need to consider the following measurements:

Bath sizes

The average bath size is 1700mm x 700mm. You can get smaller baths that start from 1400mm x 700mm to fit in your bathroom layout but you will need to consider which size will suit the bathing needs of the users of your bathroom.

Shower sizes

Walk-in showers

Often used as a direct bath replacement the average walk-in shower size is also 1700mm x 700mm, although there is a range of sizes are available.Find out more in our walk-in shower dimensions article.


Shower room enclosures

Smaller shower trays can help to free up floor space in your bathroom layout. Available in a square, rectangle and quadrant shape shower room enclosures are available in a wide range in sizes starting from 700mm x 700mm.


Bespoke Wet Rooms

An ideal solution where space is limited, wet rooms are custom built to meet the size requirements of your bathroom layout.

To find out if a wet room is right for your space read our complete guide to wet rooms & wet room installation.


Basins & WC

- Dependent on your choice of basin shape and style sizes can vary from 480mm to 610 mm in width 405mm to 580 mm in depth with an average height of 800-850mm.

- The average toilet height is 760mm in height & width and 480mm in depth. To find out more about the different toilets sizes available read our toilet buying guide.

Semi-recessed basins and Short projection and wall hung toilets are also available allowing you to save space on your bathroom layout floor plan.

Bathroom Layout top tip

Don’t forget to leave space enough space for an inward opening door!


Bathroom Storage Furniture

Often forgotten when planning a bathroom layout, you will also need to allow space for bathroom storage furniture if it is a requirement in your bathroom.

There are several storage options available that will allow you to save space including;

-Back-to-wall storage furniture

-Wall hung bathroom storage

-And wall niches

How to design a bathroom layout

When designing your bathroom layout there are several factors you will need to consider to ensure you have a bathroom that both looks great and you and members in your household can use safely and comfortably.

You will need to consider the following:

1. Waste + soil pipe location

The first bathroom layout factor you will need to consider is the location of your waste and soil pipe in your bathroom as this often dictates where your sanitaryware can be placed.

Soil pipes drain toilets, urinals and bidets whilst waste pipes drain sinks, showers and baths.

If you are fixed on a particular fixture location or your waste and soil pipes need to be recentred you can move your waste and soil pipe but you will need to consider this will add to the cost of your bathroom renovation due to the additional labour time required.

2. Bathroom shape and size

The next bathroom layout factor you will need to consider is your bathroom shape and size.

Bathroom Storage Furniture

Often forgotten when planning a bathroom layout, you will also need to allow space for bathroom storage furniture if it is a requirement in your bathroom.

There are several storage options available that will allow you to save space including;

- Back-to-wall storage furniture

- Wall hung bathroom storage

- And wall niches

How to design a bathroom layout

When designing your bathroom layout there are several factors you will need to consider to ensure you have a bathroom that both looks great and you and members in your household can use safely and comfortably.

You will need to consider the following:

1. Waste + soil pipe location

The first bathroom layout factor you will need to consider is the location of your waste and soil pipe in your bathroom as this often dictates where your sanitaryware can be placed.

Soil pipes drain toilets, urinals and bidets whilst waste pipes drain sinks, showers and baths.

If you are fixed on a particular fixture location or your waste and soil pipes need to be recentred you can move your waste and soil pipe but you will need to consider this will add to the cost of your bathroom renovation due to the additional labour time required.

2. Bathroom shape and size

The next bathroom layout factor you will need to consider is your bathroom shape and size.

If you have a small bathroom you will need to ensure you have adequate space for your fixtures and fittings and enough floor space to comfortably use your bathroom, whether stepping in and out of your shower and bath or using your basin to brush your teeth.

To find out more about how to make the most of a small space take a read of our guide on How To Remodel A Small Bathroom.

If you have an awkwardly shaped bathroom consider where you can make the most of unused space, for example, the installation of storage or shelving in an unused corner or installing an enclosed shower in the area.

3. Fixture choices

Your fixture choices play a big part in your bathroom layout design.There are several aspects to consider to make the best use of your available space:


Bathroom layout top tip

Regardless of your bathroom size, you should try to keep a minimum of 400 mm from the centre line of your toilet to the nearest bathroom wall.

Bathroom layout designer recommendation

More Bathroom Senior Designer Garry recommends that those who wish to renovate their bathroom should consider how their bathroom is used and whether they think it will change over the coming years.

For instance, Garry Explains “If your bathroom layout is limited in space, consider whether you need a bath in the room, as the removal can create needed floor space also consider whether your bath could replace your shower”


To find out more about How to design a bathroom layout or if you wish to gather further information on our full-service design of bathroom and shower room renovations. We are here to help any way we can call us or book a free design appointment online with one of our friendly senior designers – Including Garry!

Share this Post