Guide: How to plan dimensions in your bathroom

Bathroom idea from Villeroy & Boch

Space is a scarce commodity in many houses and apartments. The bathroom is therefore often the first place where people seek to save space.. It is important to remember that this room is a well-being haven that should allow enough space for beauty routines, relaxation and daily cleansing routines. So this makes it even more important to calculate the dimensions of your bathroom at the start and plan correctly. We show you the essential points to note. 

How big does a bathroom need to be?

Bathrooms can be divided into three categories based on different standard dimensions. The average size of a bathroom in Germany is just 7.8 square metres. Which means most people have a small bathroom. The broad categories in the sanitary sector are as follows: 

  • Three to six square metres: small bathroom 
  • Six to ten square metres: medium-size bathroom 
  • More than ten square metres: large bathroom 

How you plan your bathroom will, of course, depend on the available space. If you want to install a washing machine in your bathroom as well as sanitary fittings, the room will need to be designed somewhat larger to accommodate this. A small bathroom can be all you need in some cases – for example, in a household of one or two people. The more people who use the space, the bigger it should be. For example, with four people or more, it is advisable to have two washbasins and a separate toilet in a different room. 

Planning the bathroom floor plan correctly

Measuring a bathroom using a laser measurement device

Once the location of the bathroom in the house has been decided, the next step is to draw up the floor plan. There are a few things to watch out for here. For example, it’s important to measure as accurately as possible. A folding ruler is not the best tool for the job. For millimetre-precise results, use a laser measuring device instead. Flues for water or heating pipes also need to be included in the floor plan so these need to be measured too. 

Another important factor to be considered when drawing up the floor plan is sanitary installations. Would you like a shower, a bath or both? Would you prefer a built-in bath or a freestanding bath? What size should these installations be? Will you choose a freestanding or wall-mounted toilet? And should the cistern be concealed behind the plaster? All these choices will affect the required space. If connections for sanitary installations are already available in the bathroom, it is essential to include these in the floor plan and incorporate them in your planning. 

In the first floor plan sketch, mark the locations of windows, doors, connections, flues and the desired layout of sanitary installations. To do this, you will of course need to know the precise dimensions of everything or measure them yourself. You can either draw up the floor plan using graph paper and a pencil or using online planning tools in which you enter the correct dimensions. The other advantage of these tools is that they allow you to adapt the draft at any time. 

Use our Bathroom Planner for this!

Open the Bathroom Planner

Think ahead to the future and ageing too

The ViCare collection from Villeroy & Boch

It is extremely important to think ahead to the future when planning a new bathroom. Users may become less mobile at some point, but not necessarily want to move home simply because the bathroom no longer meets their needs. An accessible bathroom is therefore the right solution and it doesn’t need to look like a hospital room. An attic is not particularly suitable for a new bathroom as the location poses too many obstacles. It must be possible to access the room easily using a walking frame or wheelchair. It is important to install wide doors to allow for this. A small bathroom of up to six square metres is less suitable for an accessible design than a significantly larger space. 

The ViCare collection from Villeroy & Boch

A shower with level access can also be used by people with reduced mobility. The larger the shower, the more space there is for a shower seat. It should also be possible to place a commode over the toilet and install support handles on both sides. An integrated cabinet under the washbasin is impractical as this means wheelchair users can then no longer wash their hands. In general, all important features such as taps, light switches, toilet flush and toilet paper should be within easy reach when seated.