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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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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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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Split Bathrooms

Split bathrooms are designed to further separate bathroom uses into a primary sink and entry area and a more private bathtub and toilet zone. Divided by a central pocket or swing door, the split bathroom is ideal for shared bathrooms where one user desires additional privacy without restricting another persons access to the entry sink and vanity area.

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

With multiple floor plan strategies based on either side or split fixture layouts, split bathrooms have lengths between 11’-12’2” (3.37-3.71 m) and widths between 5’-7’ (1.52-2.13 m) respectively.

Pair of dimensioned layouts for bathroom designs that split the bathroom into two separate spaces
Split bathrooms are designed to further separate bathroom uses into a primary sink and entry area and a more private bathtub and toilet zone. Divided by a central pocket or swing door, the split bathroom is ideal for shared bathrooms where one user desires additional privacy.

With multiple floor plan strategies based on either side or split fixture layouts, split bathrooms have lengths between 11’-12’2” (3.37-3.71 m) and widths between 5’-7’ (1.52-2.13 m) respectively.

Pair of dimensioned layouts for bathroom designs that split the bathroom into two separate spaces
Split Bathrooms
Height:
Width:
Length:
Depth:
Weight:
Area:

Side Fixture Layout
Length: 12’2” | 3.71 m
Width: 5’ | 1.52 m
Area: 60.8 ft2 | 5.6 m2

Split Fixture Layout
Length: 11’ | 3.37 m
Width: 7’ | 2.13 m
Area: 77.3 ft2 | 7.2 m2

Drawings include:
Split Bathroom (Side Fixture) plan, Split Bathroom (Split Fixture) plan

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Half-Baths | Utility Bathrooms

Half-baths, also known as utility bathrooms or powder rooms, are minimum bathrooms that have two of the four main bathroom fixtures—typically a toilet and sink. Used primarily for short term visitors, half-baths are often found near the main entrance of a space and offer guests an easily accessed bathroom. When laying out a new floorpan or renovating an existing space, it is commonly recommended that adding half-baths, or converting existing closets into half-baths, is a strategy that adds higher value to real estate. Half-baths are designed with a variety of layouts that can be differentiated as linear, single wall, or split plans.

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

Bathroom layouts illustrating the dimensions of utility bathroom floorplans with linear, single wall, and split layouts
Half-baths, also known as utility bathrooms or powder rooms, are minimum bathrooms that have two of the four main bathroom fixtures—typically a toilet and sink. Half-baths are designed with a variety of layouts that can be differentiated as linear, single wall, or split plans.

Bathroom layouts illustrating the dimensions of utility bathroom floorplans with linear, single wall, and split layouts
Half-Baths | Utility Bathrooms
Height:
Width:
Length:
Depth:
Weight:
Area:

Linear Utility Bathroom:
Width: 2’6”-3’ | .76-.92 m
Length:
6’3”-8’6” | 1.9-2.6 m
Area:
18.75 ft2 | 1.75 m2

Linear Utility Shower:

Width: 2’8”-3’ | .81-.91 m
Length:
8’-9’ | 2.44-2.74 m
Area:
18.67 ft2 | 1.73 m2

Single Wall Utility Bathroom:
Width: 4’6”-6’ | 1.37-1.83 m
Length:
4’-5’6” | 1.22-1.68 m
Area:
21 ft2 | 1.95 m2

Split Utility Bathroom:
Width: 4’-5’6” | 1.22-1.68 m
Length:
4’8”-6’ | 1.42-1.83 m
Area:
22.3 ft2 | 2.07 m2

Drawings include:
Utility Bathroom Layouts Linear plan, Linear shower plan, Single Wall plan, Split 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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