Standard Kitchen Base Cabinet Sizes and Dimensions Guide

Key takeaways

• Most UK base cabinets are around 720 mm high, 560–580 mm deep and come in set width increments such as 300, 400, 500, 600, 800 and 1000 mm.
• The finished worktop height is usually 890–920 mm once you add plinths and worktops on top of the cabinet carcass.
• Allow extra space at corners and beside appliances so doors, drawers and handles can open fully without clashing.
• Freestanding cupboards, such as a tall kitchen pantry cabinet with adjustable shelves, can be a useful way to add base-level storage where fitted units will not work.
• Comfortable working height depends on your own height, so consider small adjustments to plinth height to suit the main cook in the household.

Standard UK base cabinet heights

In the UK, most manufacturers follow broadly similar base unit heights so that worktops and appliances can line up in a neat run. When people talk about ‘standard 720 mm cabinets’, they are usually referring to the height of the cabinet carcass itself, without plinth or worktop.

A typical modern kitchen run is built from a 720 mm tall carcass sitting on adjustable legs, with a plinth in front and a worktop on top. This modular approach lets fitters fine‑tune the final worktop height to suit uneven floors or personal preference.

Typical height breakdown

Although there is no single legal standard, many UK set‑ups look like this:

• Cabinet carcass height: 720 mm (common), sometimes 700 or 750 mm on certain ranges.
• Plinth (kickboard): around 100–170 mm, with 150 mm very common.
• Worktop thickness: 28–40 mm for laminate and compact tops, 20–30 mm for some solid surfaces.

Put together, that gives a finished worktop height of roughly 890–920 mm in many homes. Taller ranges or higher plinths can nudge that a little higher, which some taller cooks find more comfortable for food prep.

If you are replacing cabinets but keeping existing appliances, always measure the current worktop height and aim to match it, so built‑in appliances, windowsills and splashbacks still line up cleanly.

Ergonomic height guidelines

Standard sizes suit most people, but they are not perfect for everyone. A simple rule of thumb is that your worktop should sit somewhere near wrist height when your arms are relaxed by your sides. For many adults this falls in the 900–950 mm range.

Because cabinet carcasses are usually fixed heights, the easier way to adjust is by choosing taller or shorter legs and plinths. A few extra millimetres can make a real difference to back comfort, especially at prep zones where you spend longer periods chopping or mixing.

Standard depths for base cabinets

Depth is just as important as height. Too shallow and you lose storage and worktop space; too deep and you struggle to reach the back or align built‑in appliances with the cabinet fronts.

Most UK base units are designed to sit under a standard 600 mm deep worktop, with a little overhang at the front. The cabinet box itself is slightly shallower, and the doors and handles bring the overall depth closer to the front edge of the work surface.

Typical depth measurements

• Cabinet carcass depth (without door): usually around 560 mm or 570 mm.
• Door thickness: commonly 18–22 mm for slab or shaker doors.
• Total depth including door (no handle): around 580–600 mm.

Worktops are then cut to around 600–620 mm, leaving a slight front overhang and sometimes a small overhang at the back for scribing to uneven walls. Deeper worktops are sometimes used on island units or breakfast bars, but the cabinet depth behind them is usually still standard.

Reduced depth and shallow units

For narrow galley kitchens or around door openings, you might see reduced‑depth base units, commonly around 300–450 mm deep. These provide a handy ledge and storage without eating too far into the floor space.

Freestanding storage cupboards can be even shallower. For example, a compact freestanding floor cupboard with open shelving and a small drawer tends to have a slimmer profile than full‑depth fitted cabinets, making it easier to position in tight corners, hallways or utility areas.

Common base cabinet widths

Widths are where you see the clearest ‘grid’ system. Most UK manufacturers offer base cabinets in set width increments so they can be combined into neat runs that match typical appliance sizes.

Although ranges differ slightly, these widths are very common for single units:

• 150 mm – pull‑out spice or bottle racks.
• 300 mm – narrow base units or pull‑outs.
• 400 mm – small cupboards or drawer stacks.
• 500 mm – mid‑size cupboard or drawer base.
• 600 mm – standard single cupboard or drawer unit, also the typical slot for integrated ovens and dishwashers.
• 800 mm – wide double‑door cupboard.
• 900–1000 mm – extra‑wide cupboards or pan‑drawer units.

Wider units often use two doors or a set of large drawers and are ideal for heavy pots, pans and crockery. Narrow 150–300 mm units are useful for filling gaps and maximising storage in tight spaces, though they can be less efficient for bulky items.

Base cabinet width quick‑reference

As a simple rule when sketching a layout:

• 300–400 mm: good for tall baking trays, chopping boards, spices and bottles.
• 500–600 mm: versatile all‑rounders for everyday crockery, food storage or a drawer stack.
• 800–1000 mm: ideal for heavy cookware, wide pan drawers and large mixing bowls.

If you are combining several widths along a wall, it can be helpful to note them as a quick string (for example, 600 + 800 + 400) and compare that against your wall length. This makes it easier to see where fillers or narrow pull‑outs might be needed.

Sink base units and appliance gaps

Sink base cabinets follow broadly the same sizes as standard bases, but there are a few extra points to consider around plumbing, clearances and the relationship with appliances such as dishwashers or washing machines.

Typical sink unit sizes

Common sink base widths include 500, 600, 800 and 1000 mm. The one you choose depends partly on the sink bowl size and whether you want a drainer to one side. A single bowl sink with drainer often works well in a 600 or 800 mm cabinet; larger double bowls usually need 800 mm or more.

Depth is usually standard, but the back of the cabinet may be cut away or set back to allow room for waste pipes and taps. This means interior storage is sometimes a little compromised compared with a plain cupboard, so many people combine a sink base with a roomy drawer unit nearby for pans and stacking dishes.

Clearances around appliances

Integrated or freestanding appliances are usually designed to slide under a standard‑height worktop and line up with surrounding cabinets. Common widths include 600 mm for dishwashers and washing machines, and 600 or 900 mm for range‑style cookers.

Allow for the following when planning gaps between base units:

• Always check the appliance manufacturer’s recommended gap, then add a small tolerance (often 5–10 mm) for ease of installation.
• Remember that appliance doors need room to swing open, so avoid placing them too close to a corner or another projecting handle.
• Ensure water and electrical connections fit within the depth behind or beside the appliance without forcing it to stick out past the cabinet fronts.

If you are short on cabinet space between appliances, an extra freestanding floor cabinet such as a slim louvered‑door storage unit can help bridge gaps in storage without having to rework the main fitted layout.

Corner base cabinet dimensions

Corners are where kitchen planning often gets tricky. You need enough space for doors or pull‑outs to open without clashing, while also making the most of deep corner storage. There are several common approaches to corner base cabinets, each with different dimensional quirks.

Blind corners and L‑shaped units

A blind corner cabinet sits in the angle of an L‑shaped layout, with a section of the unit hidden behind the adjoining cabinet. These are popular because they work with standard cabinet widths and can be fitted with pull‑out mechanisms to access the hidden space.

Typical arrangements might use a 600 mm cabinet on one leg of the L and a 1000 mm cabinet on the other, with part of the 1000 mm run forming the hidden ‘blind’ section. Manufacturers often provide specific measurements for how far each cabinet must extend along each wall to make the corner work.

Corner carousels and diagonal cabinets

Some ranges offer dedicated corner units with diagonal or curved doors. Inside, a carousel or pull‑out baskets make use of the deep, otherwise awkward space. These cabinets are usually marked with two leg measurements (for example, 900 x 900 mm) indicating how far they project along each wall from the corner.

Because the door is angled or curved, you need to leave enough space on each side for it to swing open. This can reduce the usable straight‑run width on each wall slightly but may make the corner much more practical day‑to‑day.

Plinths, kickboards and leg adjustment

Plinths (also called kickboards) cover the gap between the bottom of the cabinet carcass and the floor. They hide adjustable legs, create a neat finish, and give your toes somewhere to go when you stand up close to the worktop.

Standard plinth height is often around 150 mm, but ranges of 100–170 mm are widely available. The legs behind are adjustable within a certain range, letting fitters tweak the cabinet level to cope with uneven floors and set the final worktop height.

How plinths affect finished height

A taller plinth plus standard 720 mm cabinet might give a worktop height close to 920 mm, while a shorter plinth might bring that closer to 890 mm. In most cases you will want the same plinth height all around the room so the runs look continuous.

In more flexible or mixed spaces – for example, if you are combining fitted cabinets with a tall freestanding cupboard like a 51‑inch kitchen pantry unit with doors – you might choose a deliberate height difference so the tall piece reads as a separate furniture element rather than a mismatched run.

Door swing and handle clearances

Even if the basic cabinet sizes fit on paper, it is the door and drawer movements that make or break how usable a kitchen feels. You need enough clearance to open everything fully, without knocking into walls, appliances or other doors.

Allowing space for door swing

As a minimum, try to keep at least 50 mm of space between a hinged door and a side wall or tall cabinet, especially if the hinges do not allow the door to open a full 180 degrees. Without that gap, the door might not open fully, and the handle can bang into the wall.

In tight galley kitchens, pay close attention to doors on opposite sides of the room. You may want to avoid placing two large base cabinet doors directly opposite each other, or choose drawers on one side so you can open one run at a time without collisions.

Handles and protrusions

Handles and knobs add a little extra projection beyond the cabinet door. While this is usually only 20–40 mm, in very tight corners it can still cause issues, especially near door architraves or window reveals.

Where clearances are marginal, consider slimmer handles, handle‑less designs, or switching to a piece of multifunctional freestanding storage, like a compact floor cupboard with open shelves, which you can nudge into the best position after fitting the main cabinets.

Ergonomic rules for different layouts

Cabinet dimensions do not exist in isolation – they are part of a wider layout. The same 600 mm deep base unit will feel quite different in a narrow galley kitchen compared with a large U‑shaped or island layout. A few ergonomic guidelines can help keep things comfortable regardless of room shape.

Galley and narrow kitchens

In a galley layout with cabinets on two facing walls, aim to keep at least 900 mm of clear walkway between worktop fronts. If space allows, 1000–1200 mm is more comfortable, especially if more than one person will be in the kitchen at once.

To preserve this, you might combine one full‑depth run with a shallower run opposite, making use of reduced‑depth base cabinets or slim freestanding pieces such as a narrow floor‑standing larder.

L‑shaped, U‑shaped and islands

In L‑ and U‑shaped layouts, the main consideration is how far you have to walk between sink, hob and fridge – the classic ‘working triangle’. Cabinet widths and corner choices influence where each of these can sit comfortably.

Islands introduce circulation space all around. Here, the standard 600 mm cabinet depth is often combined with a 900–1200 mm deep worktop, creating an overhang for seating on one side. Make sure you leave at least 900–1000 mm of clear space between the island and surrounding base cabinets so drawers and appliance doors can open without blocking the route.

Freestanding vs fitted base‑level storage

While fitted base cabinets provide the backbone of most kitchens, freestanding floor cupboards can be invaluable for adding extra storage, breaking up long runs, or working around awkward architectural features.

Because they are not tied to strict kitchen grid sizes, freestanding units vary more widely in height, depth and width. When choosing one to sit alongside fitted cabinets, measure carefully so the top surface works with your existing worktop height, or accept a deliberate difference and treat it like a separate furniture piece – for example, a dresser‑style pantry or a sideboard for crockery.

Examples of freestanding floor cabinets

A few common types of freestanding base‑level storage include:

• Compact multi‑purpose cupboards – slim units with a mix of shelves, a drawer and a small two‑door cupboard can tuck into spare wall space in a kitchen or hallway and provide handy extra storage.
• Tall pantry cupboards – floor‑standing larder units with adjustable shelves offer generous vertical storage for dry goods, cookware or serving dishes.
• Bookcase‑style kitchen cupboards – open cubbies above and a closed cupboard below, such as a rustic louvered‑door design, work well for cookbooks and display pieces while still providing concealed storage at the base.

If you want ideas, browsing the current bestsellers in kitchen floor cabinets can give a sense of typical dimensions and storage formats available in freestanding options.

Conclusion

Once you break kitchen base units down into their basic components – carcass height, plinth, worktop thickness, depth and common widths – the whole subject becomes much more manageable. With a handful of standard sizes in mind, you can sketch out accurate runs, check appliance gaps, and understand where you may need specialist corner units or reduced‑depth bases.

From there, it is a case of fine‑tuning: adjusting plinth heights for comfort, ensuring doors can swing freely, and topping up with freestanding storage where fixed units will not fit. Whether that means a slim extra cupboard with open compartments and concealed storage or a full‑height pantry cabinet, the same dimensional thinking applies.

With a clear grasp of these standard sizes and how they interact, you can approach any kitchen project – from a simple refit to a complete redesign – with far more confidence that everything will line up and work comfortably day after day.