Don't settle for a wimpy flusher. Maximum Performance testing (MaP) gauges a toilet's ability to get the job done with just one push of the handle. Look for a loo with a MaP score of 500 or higher; this group includes many WaterSense-rated toilets, high-efficiency models that use as little as half of the 1.6-gallon-per-flush legal limit. Go to map-testing.com for more info.
The special-order fixtures, fittings, shower pan, tile and glass block panel can take weeks to get in hand, so do the necessary legwork and ordering well in advance. Before gutting the bathroom, check to make sure that there are shutoffs for all the fixtures or a master shutoff for the entire bathroom. If not, buy ball valve shutoffs sized to fit your pipes. Then turn off the main water supply line where it comes into the house from outside, cut the pipes feeding the bathroom and install the new shutoffs right away (see Photo 7).
A one-piece shower pan is the key to a leakproof shower. We opted for an easily installed fiberglass shower pan. Forty-eight inch wide pans are common and will work well; 60-in. units like we used must be special-ordered. The shower pan has to fit into the space left by the removed bathtub. Most bathtubs are 60 in. long, perfect for a 60-in. shower base.
A one-piece shower pan is the key to a leakproof shower. We opted for an easily installed fiberglass shower pan. Forty-eight inch wide pans are common and will work well; 60-in. units like we used must be special-ordered. The shower pan has to fit into the space left by the removed bathtub. Most bathtubs are 60 in. long, perfect for a 60-in. shower base.
Although this new bathroom is a bit smaller because of additional plumbing walls, it appears larger. Substituting a shower for the bathtub, adding a large mirror, and using a wall-hung sink and toilet all contribute to the spacious feeling. This big-picture stuff is striking, but it’s the step-by-step details that make this small bathroom remodel work. We cover the little kernels of information that will help your project go more smoothly and with fewer headaches.
Interior bathroom demolition costs $1,000 to $2,300. Prices can go higher if you’re removing and moving walls to create a different footprint. For the experienced DIYer, this is a good place to save money by doing it yourself or assisting the contractor. However, demo can get expensive quickly if you take out a load bearing wall, cut electrical lines or break a water pipe. Avoid the risk by hiring a pro. 
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