Bathroom Code

[Billisnice]

What type of layout will meet code in a full bathroom? Will a 5 x7 be to small? What about a 5x8?

ty

[MikeT]

If you want a bathtub, toilet and lav, then the minimum is 5'x7'.  You might be quite limited in your selection of fixtures, but that is about as small as you can go, I believe....

[MountainDon]

IRC, Chapter 3, section R307

https://www2.iccsafe.org/states/Virginia/Residential/Res-Frameset.html
It's specific to VA, but most info is common.

They don't spell out a room size, but there are clearances for the various bathroom fixtures. Line drawings included.

Have a look there and with the dimensions of what you want to include and lay it out on paper.

[MikeT]

Here is a link with some specifications:

http://www.nachi.org/forum/attachments/f11/30027d1247281268-toilet-clearance-plumb-fixture-clearances.jpg

I think as Don mentions, it is a matter of addition and layout.

I still say 5 x 7 is a good practical minimum.....

[davidj]

I think 5x7 is the practical minimum (if the door is in the right place). 5x7ft6 gives you considerably more options - you need minimum 30" width for each fixture and with 7ft6 length you can put them all side by side with a door at one end.  And with 5x8 you can put everything in a line and get 32" width per fixture, which is more spacious and gives you many more options for the bath (e.g. it's really tough to find a deep 30" wide bath).