Double vanities are generally between 60 inches and 72 inches wide. For a guest bath, you likely need a single-sink vanity, which ranges in width from 18 to 48 inches.
Double sink vanities, on the other hand, usually measure 60 to 72 inches. There are some 60 to 72 inch vanities that also come in a single sink version. The determining factor should be how you plan on using the space.
60-Inch: If you've been wanting his and hers sinks, the 60-inch bathroom vanity is the ideal size for it. Offering two sinks, a generous amount of countertop space, and plenty of storage space, it is perfect for couples.
Standard Double Sink Vanity Sizes
If you are going to have two sinks, experts recommend the following vanity sizes: 48 inches (much less common, but available with limited counter space) 60 inches (very common) 72 inches (very common) 84 inches (growing in popularity for larger spaces)
Double Sink Vanity Sizes
The vanities usually start at a minimum of 60 inches wide and can go to 84 inches at the extreme. Average double sink: The average sink size for this style is usually round or circular with an average measurement of 19 inches by 19 inches with a standard height of 8 inches.
The standard length is 30-33 inches, but varies whether you have 1 or 2 bowls. Some double bowl models range up to 48 inches.
So if your vanity space is limited then there are more things to consider. Two sinks will physically fit in a 48” wide space, however, having the second sink will use all of your counter space and will eliminate your ability to have under counter drawers because of the space needed for the plumbing under the sink.
For a single vanity, the most popular widths are 24", 30", 36", 48", and for double vanities the most popular widths are 60" and 72", but start at 48". The standard depth of a vanity is typically around 20", but narrower options are available. The standard vanity height is 32", but ranges from 30" – 36".
More counter space means more room to do makeup, style hair, and use all the rest of the tools you need daily. This point can vary depending on the type of counter you choose, though. If the sinks are close together, you may not have as much counterspace. In larger bathrooms, double sinks tend to look nicer.
Less Clutter
A single sink vanity might provide a little more countertop space but you also increase the chance of cluttering the countertop. Having a double sink vanity will encourage you to tidy up your countertop better.
And 5 feet really isn't enough for comfortable, simultaneous use of both lavs. Six feet is a real-world comfort minimum, with 36 inches between lav centers. In fact, most research suggests that a 42-inch-wide single vanity is the perfect size for most users.
Dual Basins in the Master Bathroom
The most common place to see a dual-basin design is in the master bathroom. These are sometimes called a his-and-hers vanity design. The basic idea is easy to see: one sink for each half of the couple so that they can use the bathroom vanity at the same time.
Vanities come in a variety of sizes with the most common widths being 24", 30", 36", 48", 60" and 72". A 24" vanity is perfect for a powder room or guest bathroom with limited space while a 48" vanity may be suitable for a medium-sized bathroom.
72 inch vanities are among the largest, with a few people going up to 84 inches or larger when they have the space. You'll want to think about how much space you have to work with. Consider how each size of vanity (48, 60, 72 inches, etc.) will look in the space.
Instead, think about the overall size of your new bathroom and plan to install a vanity that will fit comfortably within it. Having a vanity that's too large in a smaller bathroom will make the entire room less functional and comfortable.
Toilet placement
A toilet should have some elbow room between it and another fixture or vanity. The NKBA's recommendation is at least 18″. Codes allow a minimum distance of 15″.
Double Bowl Kitchen Sink Cons
For one, double bowl sinks do take up more countertop real estate. What's more, then also eat away at your under counter storage space. While they take up more room in the kitchen, a double sink doesn't necessarily allow for easy washing of large items, such as casserole dishes and pans.
Bright shades, like a peachy pink or wispy lavender, are in vogue this year, as are darker shades, like deep-ocean blues and bold olive greens. It is fashionable to combine these with more neutral colors, like creams or beiges, for the countertops and vanities.
Just look at the before and after. However, double sinks aren't always outdated. Double bowl sinks have become increasingly less popular since the beauty of the dishwasher became a thing. Double sinks used to mainly serve the purpose of cleaning on one side, and drying on the other side.
With the most common design being a top-mount or under-mount sink, that means most vanities will be measured to the surface of the countertop. Standard bathroom vanity height starts at 32” and goes up to 36”, with 34” typically leaning towards the new universal average.
Common Dimensions for a Full Bath
While 40 square feet (8×5) is the minimum size for a full bathroom, it is fairly small and most layouts make it seem cramped. The average size for a full bathroom is around 60 square feet (6×10), which is considered the most efficient size for a bathroom.
For couples who share a bathroom, double vanities are ideal. By installing two sinks in your bathroom, you can avoid bickering over who gets to use the sink first.
While having two sinks can be a nice feature, you really have to ask yourself how often there are two people in the same bathroom needing to use a sink at the same time. Some spaces might be better suited for just one sink.
Double Bowl Sinks Allow You to Separate Clean and Dirty Dishes. People who enjoy cooking or baking and also hand wash dishes afterwards often choose double-bowl kitchen sinks because it allows them to do both at once and splitting up tasks between two bowls.