If you happen to have this standard sized small bathroom there are two different layouts you can consider.
Standard shower size floor plan.
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Medium size bath floor plan a second common floor plan places plumbing fixtures on two walls with the vanity and toilet on one side of the room and the tub or shower on the opposite wall.
The shower room section has a good size shower and room for a seat a little luxury to my mind which fits comfortably in the small space.
Full bathroom dimensions bath shower combination with toilet and sink 5ft x 8ft 1 5m x 2 4m.
This is one of the standard layouts for small bathroom floor plans.
Based on your bathing habits you can either go with a modest tub shower combo or opt for a fancy shower with multiple shower heads.
More floor space in a bathroom remodel gives you more design options.
Really really small bathroom floor plan if you have a really small bathroom space 5ft x 4ft the answer might be to have a small room big enough for a toilet and a washbasin and for this space to do.
This bathroom plan can accommodate a single or double sink a full size tub or large shower and a full height linen cabinet or storage closet and it still manages to create a private corner for the toilet.
If your home has a little more space available a very common recommendation is to have a shower with minimum dimensions of 60 x 36.
While you can see standard shower sizes as small as 32 x 32 most people would feel comfortable in a 48 x 36 size shower.