Fabulous Furniture – How to Measure for Bathroom Cabinets

It might be daunting to plan your first bathroom project that involves cabinetry. It doesn’t need to be complicated, though! This time, we are going to give you some top design tips on how to measure for bathroom cabinets.

1 – Measure your Floor Area

The first step is to know how much floor area you have to work with. Draw a floor plan, marking door, window, soil pipe, existing taps, shower or bath etc. Measure each wall, marking it on the plan. Graph paper is easiest, although there are lots of bathroom planning tools available online, or visit one of our showrooms with your basic floorplan and our advisors will be able to create a layout for you. Measure the height of the room, too, and the height of the windows/windowsills. This will be useful information if you want to include wall cabinets. Shown here, our 1200mm wide double Cashmere Pink Vanity with Marble Top and Curved Counter Top Basins.

A stylish and contemporary bathroom featuring a soft pink double vanity unit with shaker style cabinetry and a white marble countertop, topped with two sleek, rectangular vessel basins and chrome mixer taps. Above the vanity, a round black-framed mirror is centred on a feature wall adorned with with tropical flamingo-themed wallpaper in shades of pink, grey, and beige. The lower half of the wall is finished with dark navy panelling, adding a bold contrast. Minimalist black wall sconces with globe bulbs flank the mirror, while chrome towel rings with white hand towels are mounted on either side of the vanity. A basket filled with rolled towels sits to the right on a light herringbone-patterned floor, contributing to the rooms clean and inviting aesthetic.
Above, Bermuda Cashmere Pink with Marble Top Curved Counter Top Basin 1200mm

2 – Short Projection Cabinets for Small Bathrooms

If you feel your bathroom is on the small side, consider utilising our clever Short Projection vanity cabinets. This is our Corsica Inky Blue design, which measures 350mm from front to back, rather than the usual 400mm. 50mm may not sound like a big difference, but it can really help when designing a small space and needing to allow for doors to open and close or drawers to be used conveniently and without overwhelming a limited floor area.

A compact and modern bathroom vanity unit in a rich inky blue finish with a sleek, short projection design, featuring two soft-close handle less drawers for streamlined storage. The unit is topped with a crisp white ceramic basin with gentle contours and an integrated overflow. A brushed gold square mixer tap adds a luxurious contrast, complemented by a black soap dispenser placed neatly beside it. The vanity stands against a vertically ridged white wall, adding texture and interest, while the concrete-look flooring grounds the scene with a contemporary feel. A black ladder towel rack with a folded white towel and a lush green plant complete the stylish and minimalist aesthetic.
Above, Corsica Inky Blue Short Projection Basin Drawer Vanity 600mm wide

3 – Save Space with a Combination Unit

Measure your floor area to see if you can accommodate a Combination Unit. Shown here, our Capri Mystic Green combi! Combis are a good choice if you want to have a very neat, fitted look and don’t want to have a space between the toilet and basin. This means that a 1350mm wide Combination still has a spacious basin area, combined with a standard-sized toilet. This layout also works for a cloakroom. When measuring for plumbing, make sure that the unit sits centrally on the wall, with an equal space at both right and left-hand sides.

A chic and coordinated bathroom setup featuring a 1350mm wide combination vanity unit in a rich mystic green finish, incorporating a sleek white ceramic semi-recessed basin and a modern back-to-wall toilet with smooth, clean lines. The shaker-style cabinetry includes chrome knob handles and a concealed cistern unit with a push button flush for a seamless look. Above the vanity hangs a large round mirror framed in black, flanked by two contemporary wall sconces with globe lights, set against a bold black and white graphic leaf patterned wallpaper. The lower half of the wall is finished with elegant charcoal grey panelling, complementing the natural herringbone style flooring. A small wooden side table with decorative accessories and a leafy green plant add a touch of warmth and character to the space.
Above, Capri Mystic Green Combination Vanity Basin & Miami Toilet

4 – Measure the Drawer Projection

One important thing to consider when starting to measure for bathroom cabinets is the space available for opening cabinet doors (which tend to need less space) versus the room needed to fully open a cabinet drawer. So always measure the drawer extension when drawing up a floor plan, leaving enough ‘moving around’ floor space to allow the bathroom to be used comfortably and safely. Our Elba Oak Wall Hung Basin Drawer Vanity is 800mm wide and 395mm deep, so allow about another 300mm-400mm in front of the drawers as usable floor space. If you’re unsure, visit one of our showrooms to see the furniture item in real life.

A contemporary wall-hung vanity unit in a natural dawn oak finish, featuring two spacious soft-close drawers with sleek black bar handles for stylish and practical storage. The  unit is mounted on a minimalistic matt black metal frame, giving it a modern floating appearance. The white ceramic basin has a gently sloped design with integrated overflow and is paired with a matt black mixer tap for a bold contrast. The open drawers reveal neatly organized bathroom essentials including towels, toiletries, and grooming items. The vanity is set against glossy white marble-effect tiles on both the wall and floor, enhancing the clean and luxurious aesthetic. A small yellow reed diffuser sits atop the basin, adding a touch of elegance and fragrance to the space.
Above, Elba Dawn Oak Wall Hung Basin Drawer Vanity 800mm

5 – Consider your Corners!

Corner cabinets are a popular and logical way of making good use of unused corner space – particularly in a small cloakroom. But there’s no reason why they can’t be included in a small bathroom or shower room too, perhaps combined with a corner or quadrant shower. The important measurement to consider is the projection along each wall, which will also give you the width of the front face section. All our cabinets have detailed measurements shown, along with top, side and front diagrams if you click on the Dimensions button in the description. Tape measures at the ready! This is our Lucia Chalk White Basin Vanity, which has a front-facing width of 592mm.

A compact and charming corner vanity unit in a soft chalk white finish, designed to maximise space in small bathrooms or cloakrooms. The unit features a classic panelled design with a single door that opens to reveal two internal shelves stocked with neatly arranged toiletries, folded towels, and beauty accessories. It is topped with a sleek white ceramic corner basin paired with a chrome mixer tap. The vanity stands against a textured light grey wall ad deep charcoal tongue and groove panelling, while the geometric pink, white and beige floor tiles add a playful yet stylish touch. A chrome towel ring with a patterned pink hand towel is mounted nearby, completing the fresh and feminine look. This image offers a good visualisation on how to measure for bathroom cabinets.
Above, Lucia Chalk White Basin Vanity

6 – Assess your Wall Space

If you are working out how to measure for bathroom cabinets, remember to assess your available wall space as well. Most of us tend to focus on how much floor space is available when measuring up for cabinets, but you can also use ‘eye level’ wall space to accommodate a tall cabinet, adding oodles of extra storage to your new bathroom. This is the Midnight Green Wall Hung Tall Cabinet, which measures just 350mm wide. It’s also available in Inky Blue, and there’s a fluted version too.

A sleek, wall hung tall bathroom cabinet in a striking midnight green finish, measuring 1400x350mm. The cabinet features a modern handle less design with smooth, flat-front doors, offering ample vertical storage while maintaining a clean, minimalist aesthetic. It is mounted on a white fluted wall that adds subtle texture and depth to the space. To the left, a coordinating vanity unit with a gold tap and a white ceramic basin is partially visible beneath a round mirror with a gold rim, tying the scheme together. A large leafy palm plant to the right adds a natural element, and the polished concrete floor enhances the rooms modern, spa-like feel. This image offers a good visualisation on how to measure for bathroom cabinets.
Above, Midnight Green Wall Hung Tall Cabinet

7 – Measure up for a Vanity Unit

A Vanity Unit, such as our Quartz Stone Grey Cloakroom Vanity, which has a semi-recessed basin, is modestly sized, so it can make a huge difference in a small bathroom or tiny cloakroom. As it’s semi-recessed, the basin is very usable, whilst the shallow-depth cabinet avoids taking up too much floor space. When drawing your floor plan, take into account the projection of the basin as well as the floor-standing cabinet. Here, the overall width is 450mm and the depth of the cabinet itself is just 195mm, the basin projection is 337mm.

A compact cloakroom vanity unit in a smooth quartz stone grey finish, designed to fit smaller spaces at just 450mm wide. The unit features a minimalist, flat fronted door with a slim chrome handle, and is topped with a crisp white ceramic semi-recessed basin that curves outward for added practicality. A chrome single lever mixer tap and amber toned soap dispenser sit neatly on the basin. The vanity is set against a white painted brick wall, paired with a white herringbone patterned floor tile for a clean, contemporary look. A round wooden side table with a ribbed glass vase, candles, and greenery adds a soft, natural touch to this stylish and space-efficient bathroom setup. This image offers a good visualisation on how to measure for bathroom cabinets.
Above, Quartz Stone Grey Vanity with Semi-Recessed Basin

8 – Pick a Back-to-Wall Toilet Unit

Work out your bathroom layout and think about choosing a Back to Wall Toilet Unit, shown here with the Tuscan toilet. It makes a bathroom look a little more pulled together and neater, and makes the floor space look more defined and easy to keep clean. As before, measure the front-to-back projection to assess your floor space. This unit, combined with the toilet itself, has a front-to-back projection of 250mm for the cabinet and 480mm for the Tuscan toilet.

A stylish slimline back to wall toilet unit in a soft cashmere pink finish, paired with a sleek, modern Tuscan toilet. The unit features a traditional style panelled design with a recessed push-button chrome flush plate, offering a subtle blend of classic contemporary aesthetics. The compact form is ideal for space-saving layouts, while the white toilet has a smooth, rounded silhouette and a slim seat for a clean, modern look. The unit is set against a dark navy wall with decorative panelling, complemented by light herringbone wood-effect flooring. A chrome toilet paper holder and matching towel ring with a neatly folded white towel complete with refined, coordinated setting. This image offers a good visualisation on how to measure for bathroom cabinets.
Above, Traditional Cashmere Pink Slimline Back to Wall Unit and Tuscan Toilet

Conclusion

When you are at the crucial planning layout stage, it’s important to be very precise with your measurements – millimetres matter! Too many cabinets can look crowded, but at the same time, work out what storage you need. (A declutter before you start is always useful!). As we mention frequently, moving around space is vital, not just to get in and out of the shower whilst avoiding bumping into the shower door, but to be able to open drawers and cabinet doors easily without encroaching on the flow of the floor area. Don’t forget, we would also love to see your new bathroom designs over on Instagram, @Bathroommountainuk!

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