Bathrooms are rooms used for personal hygiene and include specific bathroom fixtures such as sinks, toilets, bathtubs and showers. Variations of bathroom layouts include minimal utility bathrooms, full bathrooms with included bathtubs or showers, ensuite bathrooms attached directly to private bedrooms, and jack-and-jill bathrooms split between two separate bedrooms. In real estate, a full bathroom contains four fixtures, a three-quarter bath contains three fixtures, and a half bathroom is limited to only a toilet and sink. Bathroom layouts should take into consideration additional spaces required bathroom accessories such as towel bars, mirrors, and storage, while also providing comfortable and safe clearances for general movement and usage. Bathroom dimensions will vary on a case-by-case basis due to variations in actual sizes of fixture.

What factors should you consider when designing a bathroom layout?

A bathroom layout design will be constrained by the size of the space and should ultimately place function over form in order of priorities. How a bathroom lays out will revolve around the toilet, the maximization of space, and the functionality of all elements. Other factors to consider include: number of regular users, regulations and standards, adequate lighting, efficient ventilation, and the incorporation of storage.

How do you design a small bathroom?

Choosing the right types of necessary elements is the best way to go about designing a small bathroom. These small-space friendly kinds include: a corner or trough sink to maximize the floor area, a shower-tub combo or walk-in shower, and an expansive mirror to make the bathroom appear larger. Wall mounting a vanity, sink, etc. can open up the bathroom to include more shelving for storage purposes.

What is a Jack and Jill bathroom layout?

A Jack and Jill bathroom layout refers to a bathroom placed between two bedrooms. It can be entered in through both doors of either bedroom usually with locks on both the inside and outside to ensure privacy when in use. It has one bath/shower and toilet to be shared, and can have more than one sink in accordance with the implied two users.

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Split Entry Bathrooms
Drawing of a dimensioned bathroom layout with a split entry door separating the bathroom into two zones

Split entry bathrooms are designed to separate the bathroom into two separate compartments dedicated to discrete functions. Split into a wet full-bath zone and a dry storage and entry area, the split entry bathroom is an efficient layout that adds additional function to the standard central full-bath plan.

Consult local building codes for accessibility requirements.
Overall bathroom sizes will vary based on the actual dimensions of bathroom fixtures.

Smaller than split bathrooms, split entry bathrooms have a typical minimal length of 8’2 (2.49 m) and width of 7’ (2.13 m).

Split entry bathrooms are designed to separate the bathroom into two separate compartments dedicated to discrete functions. Split into a wet full-bath zone and a dry storage and entry area, the split entry bathroom is an efficient layout that adds additional function to the standard full-bath plan.

Smaller than split bathrooms, split entry bathrooms have a typical minimal length of 8’2 (2.49 m) and width of 7’ (2.13 m).

Split Entry Bathrooms
Height:
Width:
Length:
Depth:
Weight:
Area:

Length: 8’2” | 2.49 m
Width: 7’ | 2.13 m
Area: 57.2 ft2 | 5.3 m2

Drawings include:
Split Entry Bathroom plan

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Full Bath - Side

Full-baths with a side layout consist of a toilet, sink, and bathtub/shower combination with the fixtures located along a single wall. Commonly sized with a width based on a typical alcove bathtub, the full-bath side floor plan provides an efficient and functional clearance space for easy usage of all fixtures.

Consult local building codes for accessibility requirements.
Overall bathroom sizes will vary based on the actual dimensions of bathroom fixtures.

Like full-bath central layouts, full-bath side layouts are often designed with typical lengths of 8’ (2.44 m) and widths of 5’ (1.52 m).

Plan drawings of door variations of Full Bath bathroom layouts with fixtures aligned to the side with dimensions
Full-baths with a side layout consist of a toilet, sink, and bathtub/shower combination with the fixtures located along a single wall.

Like full-bath central layouts, full-bath side layouts are often designed with typical lengths of 8’ (2.44 m) and widths of 5’ (1.52 m).

Plan drawings of door variations of Full Bath bathroom layouts with fixtures aligned to the side with dimensions
Full Bath - Side
Height:
Width:
Length:
Depth:
Weight:
Area:

Length: 8’ | 2.44 m
Width: 5’ | 1.52 m
Area: 40 ft2 | 3.7 m2

Drawings include:
Full Bath Side Layout (Corner door) plan, Full Bath Side Layout (Center door) plan

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Corner Shower Bathrooms

Corner shower bathrooms are three-quarter baths consisting of a toilet, sink and shower stall. With variations of floor plans that consistently place the shower stall in the corner before varying based on the choice of either a central aisle or side layout, corner shower bathrooms are popular for guest rooms or dedicated shower rooms.

Consult local building codes for accessibility requirements.
Overall bathroom sizes will vary based on the actual dimensions of bathroom fixtures.

Corner shower bathrooms with a side layout are more efficient with a tighter 5’11” x 5’3” (1.8 x 1.6 m) floor plan, while corner showers with a central aisle are larger at 6’6” x 7’2” (1.98 x 2.18 m).

Measured layouts for small bathrooms that incorporate a corner shower
Corner shower bathrooms are three-quarter baths consisting of a toilet, sink and shower stall. With variations placing the shower stall in the corner before varying based on the choice of either a central aisle or side layout, corner shower bathrooms are popular for guest rooms and shower rooms.

Corner shower bathrooms with a side layout are more efficient with a tighter 5’11” x 5’3” (1.8 x 1.6 m) floor plan, while corner showers with a central aisle are larger at 6’6” x 7’2” (1.98 x 2.18 m).

Measured layouts for small bathrooms that incorporate a corner shower
Corner Shower Bathrooms
Height:
Width:
Length:
Depth:
Weight:
Area:

Side Layout
Length: 5’11” | 1.8 m
Width: 5’3” | 1.6 m
Area: 31 ft2 | 2.9 m2

Central Layout
Length: 6’6” | 1.98 m
Width: 7’2” | 2.18 m
Area: 46.6 ft2 | 4.3 m2

Drawings include:
Corner Shower Bathroom (Side) plan, Corner Shower (Central) plan

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Full Bath Center Bathrooms
Dimensioned drawing of a bathroom layout with centered entry splitting the fixtures

Full-baths with central layouts split the bathroom into two separate fixture walls that pair the toilet and sink on one side and the bathtub isolated on the other. Typically sized based on the width of an alcove bathtub, central full-baths dedicate a central aisle that can easily access both the bathtub and/or the toilet and sink.

Consult local building codes for accessibility requirements.
Overall bathroom sizes will vary based on the actual dimensions of bathroom fixtures.

Like full-bath side layouts, full-bath central layouts are commonly designed with lengths of 8’ (2.44 m) and widths of 5’ (1.52 m).

Full-baths with central layouts split the bathroom into two separate fixture walls that pair the toilet and sink on one side and the bathtub isolated on the other.

Like full-bath side layouts, full-bath central layouts are commonly designed with lengths of 8’ (2.44 m) and widths of 5’ (1.52 m).

Full Bath Center Bathrooms
Height:
Width:
Length:
Depth:
Weight:
Area:

Length: 8’ | 2.44 m
Width: 5’ | 1.52 m
Area: 40 ft2 | 3.7 m2

Drawings include:
Full Bath Centered Bathroom plan

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Accessible Residential Bathrooms
Dimensioned drawings of layouts for accessible residential bathrooms with center and corner entries

Accessible residential bathrooms are bathrooms designed for wheelchair users in residential zones that provide enough clear floor space for a wheelchair to turn. Consult local building codes for accessibility requirements. Overall bathroom sizes will vary based on the actual dimensions of bathroom fixtures.

Requiring enough internal clear floor space for a wheelchair to make a 180° turn, accessible bathrooms must have either a 60” (152.5 cm) diameter turning circle or a T-shaped turning space located within a 60” (152.5 cm) square with a minimum of 36” (91.4 cm) wide arms. Doors should have a minimum width of 32” (81.3 cm) and cannot swing into the required clear space of the accessible bathroom. Clear floor spaces at fixtures and entry routes are allowed to overlap with the wheelchair turning space. Similar to other bathroom designs, accessible bathrooms have multiple layouts differentiated based on split or side fixtures and vary in size with minimal lengths between 8’4”-9’8” (2.54-2.95 m) and widths in the range of 5’4”-6’10” (1.63-2.08 m).

Accessible residential bathrooms are bathrooms designed for wheelchair users in residential spaces that provide enough clear floor space for a wheelchair to turn.

Requiring enough internal clear floor space for a wheelchair to make a 180° turn, accessible bathrooms must have either a 60” (152.5 cm) diameter turning circle or a T-shaped turning space located within a 60” (152.5 cm) square with a minimum of 36” (91.4 cm) wide arms. Doors should have a minimum width of 32” (81.3 cm) and cannot swing into the required clear space of the accessible bathroom. Clear floor spaces at fixtures and entry routes are allowed to overlap with the wheelchair turning space. Similar to other bathroom designs, accessible bathrooms have multiple layouts differentiated based on split or side fixtures and vary in size with minimal lengths between 8’4”-9’8” (2.54-2.95 m) and widths in the range of 5’4”-6’10” (1.63-2.08 m).

Accessible Residential Bathrooms
Height:
Width:
Length:
Depth:
Weight:
Area:

Accessible Clear Floor Space:
Circle: 60” | 152.5 cm diameter
T-Shape (Width): 60” | 152.5 cm
T-Shape (Arms): 36” | 91.4 cm
Door: 32” | 81.3 cm minimum; opens out

Split Layout

Length: 9’8” | 2.95 m
Width: 5’4” | 1.63 m
Area: 52 ft2 | 4.8 m2

Side Layout
Length: 8’4” | 2.54 m
Width: 6’10” | 2.08 m
Area: 53 ft2 | 4.9 m2

Drawings include:
Accessible Bathroom (Split) plan, Accessible Bathroom (Side) plan, Accessible clear floor space diagram

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