For Small Bathrooms Keep in mind that the shower enclosure should be wide enough to allow easy movements. So the smallest possible walk-in shower dimensions for a square shower layout is 32” by 32”. While 30” to 35” is the smallest size for a rectangular walk-in shower.
For a small space, you might choose a walk-in shower with dimensions of around 35 x 35 inches (90 x 90 cm).
The good news is that most people have at least that much space for a shower in their bathroom! The International Residential Code deems 30” by 30” as the smallest permissible footprint for a walk-in shower. The National Kitchen and Bath Association recommends a larger size; 36” by 36”, to be exact.
The minimum walk-in shower size, or should we say shower tray, is 900mm in length and 760mm in width.
How Big Should a Doorless Shower Be? A doorless shower layout requires a larger footprint than a standard tub or shower stall. Building codes may specify that a standard shower stall must be a minimum of 36 inches by 36 inches while the average doorless shower is about seven feet by four feet with many much larger.
What is the smallest recommended size for a shower? A shower should be 36 inches square (36 inches x 36 inches). For tiny spaces, 30 inches square (30 inches x 30 inches) is the smallest space that can be used for a shower.
A corner walk-in shower is a great option for small bathrooms because it takes up minimal floor space. You can either install a glass enclosure or a doorless entry walk-in shower, tucked in the corner away from the toilet and sinks as well as vanity areas.
Dimensions for a corner walk-in shower may be 1100 x 700 mm (42” x 27”), 1200 x 750 mm (47” x 30”), or 1200 x 800mm (47” x 32”). Depending on the bathroom layout and availability of the space, you may also choose slightly bigger sizes of 1200 x 900mm (47" x36") or 1300x800mm (50" x 32").
Prefab Walk-In Showers
These showers are typically manufactured as single units or in several easy-to-assemble pieces, making them an ideal option for homeowners on a budget. Prefab units, available in durable materials like acrylic or fiberglass, can be installed quickly, which helps reduce labor costs.
IRC. The minimum interior shower size is 30" x 30" or 900 square inches, in which a disk of 30" in diameter must fit. (In most places, the shower head must also be inside this imaginary disk.)
If you plan to apply some of the principles of “universal design” in your shower project, the stall should be at least 36-by-36 inches, or optimally a minimum of 42-by-60 inches. This no-threshold walk-in shower was designed for an individual with compromised mobility.
If you are someone who only requires the classic standing shower, then the size of your ensuite can be reduced to about 0.7m by 2m. Although this sounds like a little space, look at design ideas to incorporate everything you need with careful planning.
The smallest possible shower size is 32 inches by 32 inches. This is pretty tiny and can be rather uncomfortable for longer showers. It might also not be suitable for those who are tall or carry extra weight. A compromise is a bit larger standard shower size of 36 inches by 36 inches, or even 42 inches by 42 inches.
A small bathroom with a walk-in shower starts at around 36 square feet, with 8×4 being a typical size. For the purposes of most walk-in showers, the length needs to be around 4 yards at least to support the walk-in shower.
Keep in mind that the shower enclosure should be wide enough to allow easy movements. So the smallest possible walk-in shower dimensions for a square shower layout is 32” by 32”. While 30” to 35” is the smallest size for a rectangular walk-in shower.
Width: A comfortable width for a double shower is typically between 48 and 60 inches. This allows two people to use the shower at the same time without feeling cramped. Length: The length (or depth, depending on your bathroom design) of a double shower is usually at least 36 inches, but it can be more if space allows.
The average cost of a walk-in shower can vary widely depending on design preferences and material quality. Nationally, the cost typically falls between $4,200 and $8,500, with more luxurious designs reaching upwards of $15,000.
Tip. The minimum allowable shower door width is 22 inches wide: Anything narrower than that may not be up to code.
Clearance: At least 24" of space is needed in front of a shower or tub entry. Leave at least 15" of space between the shower and toilet or other obstacle. If you have a swinging door, take into consideration nearby fixtures.
Square shower enclosures
Bifold doors are perhaps the best option for a small bathroom as they only take up a small amount of space when open. You can also choose to have them open towards a wall too, making it easier to get into your shower enclosure.
Typically, the smallest shower size is 32 inches wide by 32 inches deep. However, the International Residential Code (which regulates houses, duplexes, and townhouses) allows for showers as small as 30 inches x 30 inches. Measurements go up incrementally from there, usually to about 36 inches by 60 inches.
A 30-inch x 48-inch clear floor space must be provided at shower stalls, parallel to the fixture and flush with the control wall. In 36-inch x 36-inch showers, the clear floor space must be positioned exactly as shown in the upper right diagram, with 12 inches offset behind the wall opposite the control wall.
Don't underestimate your door size. Space may be limited but if your shower has a door make sure you can still fit through it! I would aim for 550mm at an absolute minimum, but just make sure it's designed with the main user in mind. You don't want to walk sideways into your shower everyday.