Size Matters: The Importance of Considering Bathroom Size in Renovations

Small Bathroom? No Problem! How to Make the Most of Limited Space

Bathroom renovation is a popular home improvement project, second only to kitchens. Designing a bathroom with size limitations can present unique challenges, but it should not compromise the quality of the design. Learning some key bathroom dimensions and fixture sizes, understanding that a small space can work to your advantage, and careful planning will inspire the creation of unique and delightful bathrooms. This article will discuss eight critical points to consider when planning a bathroom renovation.

small bathroom renovation with wall cabinet shower and builtin bath combined with shower rail oval mirro and a classic toilet under benchtop basin and all black fittings


The size of the bathtub is an essential factor in the bathroom renovation. Standard bathtubs range from 1500 to 1700mm in length and 750mm to 800mm in width. However, many beautiful designs deviate from these dimensions. When selecting a bathtub, consider the depth, which can be as little as 350mm or as much as 500mm. Other bathtub features, such as built-in storage or spa, will also impact the size of the bathtub. A bathtub is a luxurious addition to any bathroom, but it can take up a lot of space. Consider whether you really need a bathtub or whether a shower would be more practical.


A minimum of 900mm x 900mm of space is required for a shower, but many people believe that the bigger the shower, the better. Some families even prefer dual-shower set-ups. If you have a small bathroom, a shower screen or a nib wall that only extends part-way into the room can provide privacy without taking up too much space. If you choose a glass shower screen, consider how high you would like the glass to reach. Showers with a steam function need to be completely enclosed, while for other types of showers, the top of the glass should reach at least 1900 mm above the floor as an Australian Standard.


The placement of the toilet is another essential aspect of bathroom renovation. At least 700mm of clear space is required in front of the toilet for ease of movement, and 200mm on either side. When planning for the toilet, it is essential to choose a design that fits within the available space while providing adequate room for other fixtures.


A bathroom vanity is a piece of furniture that houses your basin and provides storage. They come in different sizes, ranging from 600mm to 1800mm or even larger, and are made from various materials like wood, metal, or stone. You can also have a custom-made vanity to fit your bathroom's specific dimensions and style. When planning for a vanity, you need to consider the size of your bathroom, the size of your washing basin, and your storage needs. A vanity that is too large can overwhelm a small bathroom, while a tiny vanity can make a large bathroom feel cramped. The ideal size for a bathroom vanity is one that complements the size of the bathroom and the basin you intend to use. Generally, a single basin vanity requires at least 600mm of space, but 900mm wide vanities are preferred. If you are considering a double basin vanity, you will need at least 1500mm of space to accommodate it.

Mirror Cabinet and Storage

Bathroom mirror cabinets are a practical and stylish addition to any bathroom. They provide a space to store your toiletries, while also offering a mirror for grooming. When choosing a mirror cabinet, you need to consider the size of your bathroom and the amount of storage you need. Mirror cabinets come in different sizes, ranging from 600mm to 1500mm. If you have a small bathroom, a 600mm cabinet may be sufficient, while a larger bathroom can accommodate a 1200mm cabinet. You can also have a custom-made mirror cabinet to fit your bathroom's specific dimensions and style.

Bathroom Accessories

Bathroom accessories are the finishing touches that can make a big difference in the overall look and feel of your bathroom. They include towel rails, toilet roll holders, and soap dishes. When planning for bathroom accessories, you need to consider the size of your bathroom and the style you want to achieve. Towel rails come in different sizes, ranging from 600mm to 800mm. A 600mm towel rail is suitable for a small bathroom, while an 800mm towel rail is ideal for a larger bathroom. Toilet roll holders and soap dishes also come in different sizes, and you can choose one that complements the style of your bathroom.

Popular Layouts

When it comes to bathroom layouts, there are many options to choose from, depending on the size and shape of your bathroom. The most common layout is the single-walled layout, where all fixtures are lined up against one wall. This layout is suitable for small bathrooms and can save on plumbing installation. Another popular layout is the U-shaped layout, where the toilet is at one end of the room, and the vanity and shower or bath are at the other end. This layout is ideal for larger bathrooms and can provide more space for storage and movement.

Plumbing Locations

When planning for a bathroom renovation, it's essential to consider the existing plumbing locations to keep the cost down. Moving plumbing fixtures like the toilet, sink, or shower can be costly and time-consuming. Therefore, it's advisable to work with the existing plumbing layout, if possible, and make minor adjustments to suit your new fixtures.

In conclusion, bathroom renovations require careful planning, and considering the size is critical to achieving a functional and aesthetically pleasing space. When planning for a bathroom renovation, consider the size of your bathroom, the size of your fixtures, and your storage needs. Work with a professional designer or contractor to help you make the most of your bathroom's size and create a space that meets your needs and preferences. At Sydney Budget Kitchens, we offer a range of bathroom renovation services to help you achieve your dream bathroom. Contact us today to schedule a consultation.


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