I have a room in my carport and there is a storage room in the back... would need a door, toilet, sink, shower stall, - - there is water to the unit, and septic is not far away... approx how much would it cost to finish this into a decent bathroom... labor included. I know there is a range of costs for fixtures, but lets assume mid-range... nothing too pricey but decent and adequate. 

Sq. Mtr ???? Size of this room ?

5 minutes ago, CharlieH said:

Sq. Mtr ???? Size of this room ?

I would guess maybe 2x5 meters?? 

Subject to your location and quality of fixtures fittings /tiles about 40k-60k is my guesstimate.

You could save money by not having an official shower stall/enclosure.  Just a shower set up on the wall to the side and drain in the floor.  You could still make the rest of it look nice with proper flooring, etc.

1 minute ago, bkk6060 said:

You could save money by not having an official shower stall/enclosure.  Just a shower set up on the wall to the side and drain in the floor.  You could still make the rest of it look nice with proper flooring, etc.

Yep a "wet room" is the way to go. If you wanted a degree of priviacy just a a single block "nib" in the wall that gives a visual break.

Labor is going to be the big variable.  Tile and fixtures can be priced out for what you want but guessing that would run B15K - B25K.  If you can find a decent tiler versus a "company" you might get a price break now that construction is almost non-existent.  Tilers will quote as low as a few hundred baht per m² up to B2000 and my guess is you have about 43m² of wall and floor to tile.  Add another 7m² or so for a shower wall.

The prices above are about right, our outside toilet/shower is a bit smaller about 2x3 & is in the background here.and was around 25,000

 

What make of toilet & sink can anyone recommend?

 

Some are way too cheap & others,eye wateringly expensive.

 

 

25 minutes ago, faraday said:

What make of toilet & sink can anyone recommend?

American Standard and Cotto seem to have the most shelf space.  Both brands have !K toilets up to 20-30K.