The average size for a full bathroom is around 60 square feet (6×10), which is considered the most efficient size for a bathroom.
A standard guest bathroom includes a sink and a commode, which request about 20 square feet (sqft) of space. A medium-sized bathroom will need about 30-40 sqft to accommodate a sink, commode, and shower area, while a full-sized bathroom with all these elements and a bathtub requires an area of 50 sqft.
In newer homes, a typical master bathroom occupies an area ranging from 115 to 210 square feet. The master bathroom in older houses was considerably smaller and used to occupy a modest 75 to 100 square feet. A typical master bathroom design has room for the toilet, a bathtub, a shower stall, and a double sink.
The average full bathroom is typically about 40 square feet in size. They include all the fixtures needed in a bathroom such as a toilet, sink, and shower tub combination.
The minimum size of a small bathroom ranges between 35 and 40 square feet. Note that these bathrooms are just enough for incorporating a standard-sized sink, commode and shower area. The most prevalent dimensions of small bathrooms are approximately 6x6 feet and 8x5 feet.
Is a 5X8 bathroom too small? No, a 5×8 bathroom is the minimal size for a full bathroom, which includes a shower and a bathtub. Although the space might seem cramped, 40 square feet is still a good size for a bathroom.
A 5×7 bathroom is often thought of as the minimum size for a bathroom. It's just big enough to fit a toilet, shower, and vanity sink. However, maneuverability will be extremely limited and a bathroom of this size isn't very accessible to those with mobility issues.
However, the space is large enough to fit a shower/bathtub, a sink, a toilet, and a small vanity, although the space will feel fairly cramped. The advantage of a 5×7 bathroom is that you can enjoy the functionality of a larger bathroom at a reduced price which can make up for the lack of space.
It could be a single three-quarter bath with three fixtures like a toilet, sink, shower, or tub. Or it could mean a half bath with a toilet and sink plus a quarter bath with one fixture like a toilet, shower, or sink. Even the “one” in 1.75 is not so cut and dry.
A full bathroom is made up of four parts: a sink, a shower, a bathtub, and a toilet. Anything less than that, and you can't officially consider it a full bath. Therefore, a bathroom with a sink, toilet, and shower is considered a three-quarter bath. A bathroom with just a sink and a toilet is a half-bath.
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.
With shower installation, the minimum shower size is 32 x 32 inches. However, most typical shower sizes are 36 x 36 inches.
Many ¾ bathroom floor plans come in at an average size of 40 sq ft (just under 4 m2), although they can be smaller or larger. A standard ¾ bath floor plan in that size range uses a rectangle shape with 5 ft by 8 ft (about 1.5 m x 2.4 m) wall lengths.
Three-Quarter Bath
A three-quarter bathroom will have three of the four key components. Most commonly, these rooms will include a toilet, sink, and a shower stall without a bathtub (or in some cases, a bathtub without a shower).
A small Jack and Jill bathroom will need at least 40 square feet. The average, medium size is about 110 to 160 square feet. This is large enough for two sinks, two commodes, and a tub shower. One vanity may provide two sinks in the same style as a master bathroom.
The dimensions are 6' X 6' or 36 square feet.
Another common small-size bathroom is the 6X6. Although this meets the minimum requirement of a full bath, it's a more spacious approach to make it a ¾ bath.
A 2.5 bath would mean two full bathrooms, and one half bathroom.
Fortunately, many homes have relatively simple combinations of full- and half-baths. So, for example, if there are two full bathrooms upstairs and a half-bath powder room downstairs, that would be a 2.5-bathroom home— even though there are three rooms in the house that most people would identify as bathrooms.
To create a luxurious small bathroom look, use white bath towels and a light neutral color. If you spend more on high-quality white towels and rugs, your casual bathroom can appear more luxurious. Also, make everything look cohesive and accessorize with natural materials to go with your white linens.
A family of 5 would need at least 2 bathrooms. 1 for the parents and 1 for the kids unless you want to have 3 bathrooms.
As you can see in the above example, 5x7 and 8x10 prints (often referred to as 'gift prints') are best for displaying on a table or desk. They are typically considered too small for a wall print. For your wall, go big or go home!
Plan a clear floor space of at least 30 inches from the front edge of all fixtures (lavatory, toilet, bidet, tub, and shower) to any opposite bath fixture, wall, or obstacle. Code Requirements: A minimum space of 21 inches must be planned in front of the lavatory, toilet, bidet, and tub.
A half-bath is typically 3-4 feet wide and 6-8 feet long, according to Redfin.