For more comfortable use, allow at least 3 feet of wall space per user and 42 inches for a single vanity width. If you do the math, that calls for a minimum of 60 inches, or 5 feet of wall space. And 5 feet really isn't enough for comfortable, simultaneous use of both lavs.
Clearance in front of the vanity: 21" minimum, although 30" is recommended for a total of 51" from the wall.
Place bathroom sinks 20 inches from the back wall, recommended. The bare minimum is 15 inches. This is measured from the sink's center point to the wall. Bathroom vanities with precut sinks should already meet the spacing guidelines.
Recommended Clear Bathroom Space
Plan a clear floor space of at least 30 inches from the front edge of all fixtures (lavatory, toilet, bidet, tub, and shower) to any opposite bath fixture, wall, or obstacle.
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)
A 60” vanity space will allow for about 12” of counter space as well as a small 12” set of drawers in between the two sinks.
The 30-inch bathroom vanity size is a smart choice for tight areas, particularly guest bathrooms and powder rooms that have limited space. This modest width can only accommodate a single sink, and it offers less room for toiletries and storage in general.
Small-Bathroom Vanity Placement
Placing a vanity in a corner takes advantage of every inch of floor space and also allows for storage options on two walls. A recessed cabinet installed into a sidewall is a smart way to capture space that is typically overlooked.
Yes, Vanities Should Be Attached to the Wall
Most of the time, plumbing comes through the wall underneath the sink, and the vanity's cabinet keeps it hidden. A vanity that isn't attached to the wall could shift, either with time or because you've accidentally bumped into it.
If you're building in your bath, you've got more flexibility with the depth of tiling around the edge. Make sure your door swings clear of your vanity and that you allow at least 100mm–200mm between a shower screen and vanity for cleaning.
Most codes require at least 15 inches (measured from the center of the toilet) from any side wall or obstruction and not closer than 30 inches center to center to any other sanitary fixture. (The NKBA actually recommends 32 inches.) There should be at least 24 inches of clear space in front of a toilet or bidet.
Guidelines recommend including at least a 24” wide landing area to one side of the sink, and at least an 18” wide landing area on the other side. Notice the sink can be close to a corner, as long as the return has 21” of frontage.
If a 1-inch buffer of counter space is left in front of the sink, 3 inches more is available behind it to mount the faucet. As long as the faucet base is less than 3 inches wide and the total width of the sink is 20 inches or less, the faucet will comfortably fit on the countertop.
Having a vanity that's too large in a smaller bathroom will make the entire room less functional and comfortable. Additionally, a vanity that is too small for the room it sits in will often get lost in its surroundings. Another size consideration for your new vanity is height.
Measure the depth of the available space for bathroom vanity
A helpful tip is to open the door, mark it with a coin and take your measure from that point. If space is at a premium, try to leave a minimum of an inch or two between all of the bathroom items. Bathroom vanities typically have a depth of 18 to 22 inches.
If you do not measure the space correctly, there might be small or large gaps between the vanity and the wall. While installing the vanity, it should be carefully flush against the wall to avoid gaps. Failing to do that could be another reason. You are selecting the inadequate vanity style.
Many would-be renovators will prefer to begin upgrading their bathroom by first tiling the wall before adding a bathroom vanity unit to complete the look.
When preparing to install the light fixtures and mirror above a bathroom vanity, the easiest way to start is with the mirror, as you want to center it on the wall. Standard spacing for a vanity mirror(s) is 5-10 inches from the vanity sink to the bottom of the mirror.
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".
Typically a custom vanity costs about twice as much as a prefab vanity because there are more subcontractors involved in making and putting the vanity together.
Water control: If water collects on the surface of your countertop, it's important that the surface is as level as possible so the water can pool in place instead of spreading across the surface. That water can drip onto the floor and make the surface unexpectedly slippery.
Is a 5X8 bathroom too small? No, a 5×8 bathroom is the minimal size for a full bathroom, which includes a shower and a bathtub. Although the space might seem cramped, 40 square feet is still a good size for a bathroom.
One of the easiest ways to give your room a spacious look is to use lots of white — white tile, white paint, a white vanity and so on. This noncolor-color naturally recedes, making the space look bigger. It also reflects any available light, rather than absorbing it.
18inchvanities are a great option for small bathrooms because they offer plenty of storage space without taking up too much room.