By Suzana Mikolova 
Most homes in America have a bathtub that doubles as a shower. Not that many homes have a separate shower stall and a separate bathtub. You may be remodeling your bathroom and feel that it would be a nice option to have a separate shower stall rather than a combined shower/bath.
Your first consideration when thinking of installing a separate shower stall in addition to your bathtub is whether you have enough room. If you are doing a major bathroom remodel then you can plan it down on paper, all the measurements of the various items like the shower, bath, toilet and cabinets so that you can fit these items in your bathroom.
If you’re not doing a major bathroom remodel, you’ll have to evaluate any spare space you have in the bathroom, measure it up, and do some research to find a shower stall with those dimensions that will fit easily into the bathroom.
Once you have your measurements for your new shower stall it’s time to go shopping. You can find complete shower stalls at most home improvement stores. These usually come with a molded shower floor and walls and the shower door. These all in one shower stalls are quite easy to install as everything you need is built into it.
However you may want to make use of the tiles you’ve already got laid on your bathroom floor and use those as the shower floor. You’d obviously have to put in a drain and build up the sides of the area to create the base of the shower, and then buy some sliding doors to finish it off.
This entails a lot more work than just buying the all in one shower stall, so it comes down to weighing up the amount of money you have to spend versus the amount of time you have to build a shower from the ground up yourself, or have it done for the professionally.