How to build a camper bathroom?

In this blog post, we will answer the question: “How to build a camper bathroom?” We will discuss the steps to build a camper bathroom and the storage and shelving options. We will touch upon the ventilation, lighting, and important aspects required to build a camper bathroom successfully.

How to build a camper bathroom?

To build a camper bathroom, you must follow the steps described below.

  • Determine the layout
  • Plan the plumbing system
  • Install the bathroom wall
  • Fix the floor
  • Install the toilet
  • Install the shower and sink
  • Add storage and shelving
  • Add ventilation and lighting
  • Install the door
  • Waterproof the interiors

Determine the layout

  • First, you must determine the camper’s layout to build the bathroom. Select the area where you plan on building the bathroom. Ensure there is enough space for the toilet and the shower area.
  • Some campers have their bathroom at the rear, while some have them at the front. If it fits the layout, you can build the bathroom in the camper.

Plan the plumbing system

  • The most important step is to plan the plumbing system. Design the plumbing system of the camper bathroom based on the layout. This also depends on the location of the whitewater, greywater, and blackwater tanks in the camper.
  • It is advised to draw a plan of the pipes and their connections to the respective tanks. Remember that the freshwater tank is the source connected to the sink and shower. The wastewater from the shower and sink must be connected to the greywater tank. The black water tank is where the toilet waste needs to be connected.
  • Ensure that the plumbing lines are all connected to the right water tanks, and ensure they are secured properly.
  • Use flexible and lightweight plumbing materials that are suitable for campers. Installing proper ventilation to prevent moisture buildup and bad odour is also important. Install the pipelines in the right manner and make sure that the joints are fixed well.

Install the bathroom wall

  • You must install the bathroom walls from the bottom to the top of the roof. There are plenty of options when it comes to installing bathroom walls. Composite plywood or medium-density waterproof boards are some of the common options to consider.
  • Make sure that the bathroom walls are cut and fixed according to the right dimensions of the area. Ensure that the walls are fixed from the floor to the top of the roof and are secured properly. Make sure that the bathroom walls are properly sealed to prevent water damage.
  • Use waterproof materials on the walls, floor and other areas that are usually susceptible to water exposure.
  • Use waterproof paint and sealants where the walls meet. For flooring, the best option is to consider using bathroom vinyl flooring. These are specifically designed for camper bathrooms with water-resistant and slip-resistant features. Vinyl bathroom flooring is durable and widely used by campers.

Install the toilet

  • The next step is to install the toilet. While installing the toilet, make sure that a hole is connected to the pipes and runs to the black water tank. Some camper keeps it small by using a cassette toilet. However, the choice is yours, as you get to choose the toilet based on the space in the bathroom.
  • Ensure that the toilet is fastened, secured properly, and sealed. Follow the manufacturer’s instructions to ensure the toilet is installed correctly. The most important part is selecting the right toilet based on the available space for water supply in the camper.

Install the shower and sink

  • A camper bathroom with a shower will make life more comfortable on the road. Some campers might not have enough space to install a shower. In that case, an external shower will be the other option. Install a shower stall if there is enough space in the bathroom.
  • Ensure there is a hole for draining the shower water, and ensure it is protected with waterproof elements. While installing a shower, install compact and light mobile applications.
  • For the sink, it is best to select a compact sink that is suitable for the camper bathroom. Remember to keep it small since camper bathrooms are limited in space. Select a neat, compact sink that fits well in the available space.
  • Install the faucet and the sink and connect the plumbing line to the outlet. The sink inlet must be connected to the whitewater tank, while the outlet must be connected to the greywater tank. Check if the sealing is proper to prevent leaks.

Add storage and shelving

  • The camper bathroom will require a couple of storage shelves. Consider using built-in cabinets or wall-mounted shelves. These are easy to install and are lightweight. They also arrive at a reasonable price.
  • While purchasing or constructing storage shelves, ensure that they are waterproof. Storage shelves help to keep the camper bathroom organized. There are also portable shelves that are available online for camper bathrooms.

Add ventilation and lighting

  • Next, adding ventilation and lighting to the camper bathroom is important. Make sure that there is adequate lighting inside the bathroom during the day and night. Install light fixtures and include ventilation to minimize the humidity and prevent odours. Install a vent fan or window to have proper airflow in the bathroom.

Install the door

  • Next, you must install a bathroom door with the same waterproof material. Ensure that the bathroom door is coated with moisture-resistant paint or wall coverings.

Waterproof the interiors

  • The entire interiors of the camper bathroom must be waterproof irrespective of the materials you use. The walls, floor, and other areas must be waterproof with the right paint, sealants, and membranes. Add a shower curtain to prevent the water from the shower from passing to the bathroom.

Test the bathroom

  • Finally, you must inspect the bathroom for leaks and other issues. Ensure that the drainage is working properly and that there are no leaks or other damage. Test the functionality of the toilet, shower, and sink.
  • It is recommended to conduct a thorough inspection to ensure all the components are installed properly and functioning well.

It is easy to build a camper bathroom, but this project requires time, skill, and effort. Make sure you are comfortable working with plumbing and electrical systems. If you are not confident in working with these areas, be sure to get in touch with a professional or seek help for an expert to help you with this project.


In this blog post, we have answered the question: “How to build a camper bathroom?” We discussed the steps to build a camper bathroom and the storage and shelving options. We have touched upon the ventilation, lighting, and important aspects required to build a camper bathroom successfully.

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