Bathroom furniture buying guide

Plumbworld bathroom team  ·  Last updated June 2026  ·  Reviewed by our bathroom product specialists

Measure first.

Everything else in buying bathroom furniture comes after that. The style you want, the brand you trust, the finish you fall for, the price you can stretch to. None of it matters if the vanity doesn’t fit the wall or the door swing blocks the basin. This guide is the practical walkthrough for UK buyers: how to measure properly, how to choose the right sizes for your bathroom type, how to think about wall-hung versus freestanding, what arrives on delivery day, how the install works, and what to do if anything goes wrong. By the end you’ll know exactly what to buy and exactly what to expect when it shows up.

Start with the room: measure first

The single biggest cause of bathroom-furniture returns is buying for a wall you haven’t measured properly. The product photos look great. The dimensions on the listing look fine. The piece arrives and it’s 30mm too wide for the gap, or the door fouls the radiator, or the basin sits behind the toilet tank cover.

Measuring takes 10 minutes and saves an entire return cycle. The next section walks through exactly what to measure and why.

How to measure for bathroom furniture

Use a metal tape measure (cloth ones stretch and give wrong readings) and write the numbers down rather than trusting memory. Six measurements, in this order:

Step 1. The width of the wall where the furniture will sit. Floor-to-floor, including any radiator pipes, skirting boards or obstacles along the run. Note the narrowest point if the wall isn’t completely straight.

Step 2. The depth available from the wall into the room. Allow for door swings if a doorway opens toward the furniture wall. The vanity depth (front-to-back) needs to fit comfortably without obstructing the room.

Step 3. The height from floor to ceiling (and floor to any window sill that limits the height of a tall unit). Standard vanities are 800–850mm tall to the basin rim; tall units are usually 1700–2000mm.

Step 4. The clearance around the basin position. The basin needs space for the taps to operate (typically 50–100mm behind), space for elbows when washing (typically 200mm each side), and clear approach from the front.

Step 5. The door swing arc. If the bathroom door opens inward, mark on the floor with masking tape where the door swings to. The vanity has to clear that arc, including its handles and the open-cupboard position.

Step 6. The plumbing position. Note where the existing waste and supply pipes come from (floor or wall) and at what height. The new vanity has to accommodate the existing plumbing or you’ll need a plumber to reroute pipes, which adds cost and time.

With those six measurements written down, you can shop with confidence. Without them, you’re guessing.

Choosing the right sizes

Bathroom furniture comes in standardised widths, mapped to UK bathroom types:

Bathroom type	Vanity width	Mirror cabinet width	Tall unit width
Cloakroom (under 2m²)	400–500mm	400–500mm	300mm (slim)
Small bathroom (2–4m²)	500–600mm	500–600mm	300–400mm
Standard family (4–6m²)	600–800mm	600–800mm	400–500mm
Large family (6m²+)	800–1000mm	800–1000mm	500–600mm
Master / ensuite (shared)	1200mm+ (double)	800–1200mm	500–600mm

Two principles for sizing. Match the width of the vanity and the mirror cabinet above it. Different widths read as accidental. And size to the room, not just to the gap. A 1000mm vanity squeezed into a 1200mm wall feels cramped even though it fits; a 800mm vanity in the same wall leaves comfortable margins.

Wall-hung or freestanding?

The mounting decision affects how the bathroom feels and how much install work is involved.

• Wall-hung. Pieces attach directly to the wall with no contact to the floor. The cleared floor underneath makes the bathroom feel meaningfully more open in small rooms, and the cleaning is dramatically easier (no grout joint at the base to collect dust and water). The trade-off: the wall has to take the loaded weight (a 600mm vanity full of contents is typically 30–40kg), so stud walls usually need timber reinforcement before the install. For brick and block walls, no additional preparation needed.
• Freestanding. Pieces sit on the floor with a kickplate at the base, like fitted kitchen units. Simpler to install (no wall reinforcement needed), pipework hides completely behind the cabinet back, and the style reads as warmer in traditional or country bathrooms. The trade-off: slightly harder to clean around the base over years of use, and the floor footprint is fully occupied rather than visible.

For most modern UK bathrooms, wall-hung is the standard choice for vanities and mirror cabinets. For traditional or country bathrooms, freestanding pieces often suit the style better. For households with limited DIY experience and no plans to hire a professional installer, freestanding is the lower-risk install.

For the full comparison, read wall-hung vs freestanding bathroom furniture.

Budgeting beyond the furniture itself

The furniture price isn’t the all-in cost. Three other line items typically need budgeting for, separately from the unit itself:

• Taps and wastes for the basin in a vanity. These are almost always sold separately. Budget £40–£200 for a mono mixer tap (chrome at the lower end, brushed brass or matt black at the higher end) plus £15–£40 for the matching pop-up waste. Twin-lever traditional taps cost slightly more.
• Fitting and plumbing. A plumber charges roughly £250–£500 to fit a vanity (including connecting supply pipes, fitting the waste, mounting the unit, sealing the basin). Wall-hung vanities at the higher end of the range because the wall preparation takes longer. Add £100–£250 if pipework needs rerouting because the new vanity doesn’t align with existing connections.
• Fixings and silicone. Bathroom-grade silicone for sealing the basin and the unit-to-wall join (£10–£20 per tube; two or three needed for a typical install). Wall plugs and screws appropriate for the wall type. Most installers carry these but it’s worth confirming.

On a typical UK vanity-and-mirror-cabinet install, expect £100–£300 of extras on top of the furniture price itself. Plan for these rather than discovering them at checkout or on install day.

Delivery, fitting and what to check on arrival

Plumbworld delivers UK-wide with free delivery on qualifying furniture orders. Larger items (vanities, tall units) ship on a two-person delivery service to the front door; smaller items (cabinets, mirror cabinets) come by standard courier. You’ll get a delivery slot the day before so you know roughly when to be in.

On the day, three things to do before signing for the delivery:

• Check the packaging condition. Visible damage (crushed corners, water damage, tears) should be noted on the delivery paperwork before signing. If the driver won’t wait, refuse the delivery and contact us.
• Count the boxes against the order confirmation. Sets ship in coordinated drops but the boxes still need to add up. A missing box is much easier to flag at the door than after the driver has left.
• Move the boxes to a dry indoor area, not the garage or a porch. Bathroom furniture is sensitive to humidity changes, and a few days in a damp garage can warp panels before the install even starts.

Fitting is usually done by your own plumber or bathroom installer, especially for vanities (where the basin and supply pipes need to be connected). Cabinets and mirror cabinets can be fitted by a competent DIYer; vanities are easier to leave to the plumber.

Common buying mistakes (and how to avoid them)

Five mistakes account for most bathroom furniture returns and post-install regrets. Worth knowing them before you order:

• Buying for the gap rather than the room. A 1000mm vanity fits a 1000mm gap but feels claustrophobic in a 4m² bathroom. Size to the room as a whole, not just to the wall measurement. A piece can fit and still be wrong.
• Forgetting the door swing. The bathroom door opens. The vanity doors open. The cabinet doors open. If three things open into the same airspace, two of them are going to collide. Map the swings before you commit.
• Mismatching finishes across separately-bought pieces. A vanity in "matt white" from one brand isn’t the same matt white as a mirror cabinet from another. Either buy as a set, or buy multiple pieces from the same range, or accept that the mismatch will quietly bother you for years.
• Ignoring the existing plumbing position. A new vanity is much cheaper if it accommodates the existing supply and waste pipework. Rerouting pipework adds £100–£250 and an extra day to the install. Where possible, choose a vanity whose plumbing position matches what’s already there.
• Underestimating delivery and storage. Vanities ship in heavy boxes that need somewhere safe and dry between delivery and install. If your bathroom is being renovated, the boxes shouldn’t live in the bathroom. Plan a storage location, ideally a heated indoor space.

Returns and guarantees

Plumbworld offers 365-day returns on unused furniture in its original condition with all packaging. That gives you a full year to plan, fit and confirm everything works before the return window closes. Returns can be arranged through your account or by contacting customer support.

Manufacturer guarantees vary by range. Most cabinet bodies and door fronts are guaranteed for 5–10 years against manufacturing defects; hinges and runners for 10 years; basins (when included with vanities) for the lifetime of the ceramic. Check the specific guarantee on the product listing before ordering.

Buying guide FAQs

How do I measure for a vanity unit?

Six measurements: the wall width, the available depth, the floor-to-ceiling height (and any window sill that limits height), the clearance around the basin position (for taps, elbows and approach), the door swing arc, and the existing plumbing position. With those written down, you can shop confidently; without them, you’re guessing.

What size bathroom furniture do I need?

Cloakrooms suit 400–500mm vanities and 300mm slim tall units. Small bathrooms (2–4m²) suit 500–600mm. Standard family bathrooms (4–6m²) suit 600–800mm vanities and 400–500mm tall units. Large family bathrooms and master ensuites suit 800–1000mm or double vanities. Match the vanity and mirror cabinet widths within the same bathroom.

Does Plumbworld deliver and fit bathroom furniture?

We deliver UK-wide with free delivery on qualifying orders. Larger items come on a two-person service to the front door; smaller items by standard courier. Fitting is usually done by your own plumber or bathroom installer. We don’t provide a fitting service, but our customer support can advise on installer requirements.

What if it doesn’t fit or I change my mind?

We offer 365-day returns on unused furniture in original condition with all packaging. That gives you a year to plan, fit and confirm everything works. Returns can be arranged through your account or by contacting customer support. The full returns terms are on our policy page.

How long does bathroom furniture last?

Most cabinet bodies and door fronts are guaranteed for 5–10 years against manufacturing defects, and last considerably longer in normal use. Hinges and runners (which see daily use) typically last 10–15 years. Basins integrated into vanities last the lifetime of the ceramic, which is decades. The first part to fail in any bathroom furniture is usually the soft-close mechanism on drawers or doors; this is replaceable rather than a whole-unit replacement.

Can I install bathroom furniture myself?

Some of it. Floor-standing cabinets and tall units are reasonable DIY jobs that need basic assembly and levelling. Wall-mounted cabinets and mirror cabinets are more involved (accurate fixings into the right wall type, ideally a second person to hold the unit). Vanities almost always need a plumber, because the basin and supply pipes need professional connection. Most UK buyers DIY the cabinets and hire a plumber for the vanity.

Ready to start? Browse the bathroom furniture hub for the full range, or jump straight to vanity units if you know what you want.

Plumbworld has supplied UK bathrooms since 1999, with a 4.8/5 rating from over 60,000 Trustpilot reviews, free UK delivery, a price match promise, and 365-day returns. A careful buying decision is a low-risk one to commit to.

Big brands, small prices.