Key Measurements to Make the Most of Your Bathroom
Fit everything comfortably in a small or medium-size bath by knowing standard dimensions for fixtures and clearances
Despite the modest dimensions of this space, the custom-designed medicine cabinet stretches over the toilet, providing generous storage. Note that the lighting built into the cabinet is a tall and narrow strip. Lighting fixtures placed on both sides of mirrors are ideal. You want even illumination from each side when grooming, and this arrangement is a good solution.
Tubs. Standard tubs with apron fronts are 60 inches (152 centimetres) long and 30 to 32 inches (76 to 81 centimetres) wide. The depth can be as little as 14 inches (35 centimetres) and as much as 20 inches (50 centimetres).
Toilets. You need at least 30 inches (76 centimetres) of clear width for toilets, but 32 to 36 inches (81 to 91 centimetres) is much better for most people.
Single sinks. For a single sink, you need at least 30 inches (76 centimetres) of width, but 36 to 48 inches (91 to 107 centimetres) is more comfortable.
Double sinks. You can squeeze two sinks into 60 inches (152 centimetres) of width, but 72 inches (183 centimetres) or more is preferred.
Note: Metric dimensions are close translations of U.S. standards and do not represent the standardised dimensions that may apply to your country.
A double vanity makes this bath comfortable for two. Also, the tub is deeper than average. While 5-foot tubs are easy to come by, deeper tubs can be harder to find. If you intend to use it primarily for taking showers, a shallower tub might be best. But if you intend to use the tub frequently, you might want a deeper one for better soaking.
Should you choose to have a glass enclosure, as in this bath, consider how high you would like to have the glass reach. Showers that have a steam function need to be completely enclosed, as seen here. Otherwise, the top of the glass should reach at least 76 inches (193 centimetres) above the floor. You may want to coordinate the height with the tiles or other wall finishes, or with the height of the windows and doors in the room.
More common is to have a curb to define the shower’s parameters, as in the bath here. This curb is normally 3 to 4 inches (8 to 10 centimetres) high and 4 to 6 inches (10 to 15 centimetres) wide. Though it’s not as sleek as the previous design, practical limitations may make this the better choice for you.
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In a slight twist on the conventional layout, the toilet and the sink have traded places here. Either arrangement works, but the position of doors can dictate the best solution for you. Consider where doors swing into the room and whether they will open on to a wall or a fixture. A wall is better.
There are standard-size toilets and elongated configurations. The elongated type will extend into the room by another 2 to 3 inches (5 to 8 centimetres).
Sinks will be the most versatile bathroom element with respect to different sizes that can work. Standard tubs are 32 inches wide (81.3 centimetres) and 60 inches (152.4 centimetres) long, but you can find many variations in length, width, depth and shape. Showers are required to have a minimum of 1,024 square inches, which is 32 inches by 32 inches of interior space — although it’s best to aim for at least 36 inches (91.4 centimetres) by 36 inches. Toilets can fit into spaces as small as 30 inches (76.2 centimetres) wide and 54 inches (137.2 centimetres) long, but at least 36 inches wide and 60 inches deep is much more comfortable.
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