Showers require a minimum of 30 inches of space into which a 30 inch diameter circle could be drawn. Because this is a very tight fit for most people, the recommended space for a shower is 36 inches. The ceiling in your bathroom must be at least 80 inches at the front of the sink or toilet and inside the shower.
http://homeguides.sfgate.com/dimensions-building-regulations-small-bathroom-68909.html
The first size consideration to make when designing a bathroom is the entry and the amount of clear space required. Code for the doorway opening to the bathroom is 32 inches, with 34 inches being the recommendation.
http://homeguides.sfgate.com/dimensions-building-regulations-small-bathroom-68909.html
Small Full Bathroom. Dimensions: 40 square feet (5’ x 8’) Fixtures: Sink, toilet and tub shower combo or luxury shower. A full bathroom usually requires a minimum of 36 to 40 square feet. A 5’ x 8’ is the most common dimensions of a guest bathroom or a master bathroom in a small house. If you happen to have this standard-sized small bathroom, there are two different layouts you can consider.
http://www.improvenet.com/a/7-awesome-layouts-that-will-make-your-small-bathroom-more-usable
Recommended: The distance from the centerline of a toilet and/or bidet to any bath fixture, wall, or other obstacle should be at least 18 inches. Code Requirement: A minimum distance of 15 inches is required from the centerline of a toilet and/or bidet to any bath fixture, wall, or other obstacle.
http://www.bhg.com/bathroom/remodeling/planning/bathroom-layout-guidelines-and-requirements/
The section is a bit small (6'x21'). What is the minimum... show more I have a section of my backyard patio that we are considering enclosing and adding to the home as a home office. Ideally I'd like to put a bathroom in there so that our guests can use that after swimming. (rather than walking through the home). The section is a bit small (6'x21'). What is the minimum square footage required for a 1/2 bathroom (toilet/sink only) or for a bathroom (toilet/sink/stand-up shower)?
https://answers.yahoo.com/question/index?qid=20080302173325AAXWuAG
Three-quarter bath (no tub) With only one sink and a shower, this is a hardworking plan for a guest bathroom. All plumbing on the same wall saves labor and supply expenses. If visitors will use or see your bathroom, consider what they will first notice from the doorway.
http://www.bhg.com/bathroom/remodeling/planning/bathroom-layout-guidelines-and-requirements/
Small Full Bathroom. A full bathroom usually requires a minimum of 36 to 40 square feet. A 5’ x 8’ is the most common dimensions of a guest bathroom or a master bathroom in a small house. If you happen to have this standard-sized small bathroom, there are two different layouts you can consider.
http://www.improvenet.com/a/7-awesome-layouts-that-will-make-your-small-bathroom-more-usable
Full bath. A tub/shower combination is a good choice for many baths, especially a space that may be used by children as well as adults. The tub's end wall and the way the door opens is a way to help keep the toilet separate from the rest of the space. Often a full bath has space for a roomy vanity, or double vanity.
http://www.bhg.com/bathroom/remodeling/planning/bathroom-layout-guidelines-and-requirements/
Distances should allow for common usage by people with a limited range of motion. Dimension guidelines when dispensers. protrude from the wall in toilet rooms and. toilet compartments. Anything that a person might need to reach. should be a maximum of 48 (1220 mm) off of. the finished floor. Toilet tissue needs to be easily within arm’s. reach. The outlet of a tissue dispenser must. be between 24 (610 mm) minimum and. 42 (1070 mm) maximum from the back.
https://www.bradleycorp.com/download/2066/3931_ADA_Design_Guide.pdf
This means that if the door width is 32 inches, you must have a passage of 32 inches wide and 32 inches long of clear space leading into the bathroom. Once inside the bathroom, you will need a minimum of 21 inches of space in front of the toilet, sink, tub or bidet and 24 inches of clear space in front of a shower.
http://homeguides.sfgate.com/dimensions-building-regulations-small-bathroom-68909.html
what is the minimum area needed for a full bathroom
The minimum area needed for a full bathroom is 36 to 40 square feet.   The minimum area needed for a full bathroom is 36 to 40 square feet.