Kitchen Drawer Units: Sizes, Weight Limits, What to Buy

Kitchen drawer units cost more than the equivalent cupboard, and they are worth it for one reason that has nothing to do with looks: you can see everything without kneeling on the floor. A base cupboard buries its contents in a dark box behind a door, so the back third holds whatever you gave up on years ago. A drawer brings the whole footprint out to you at waist height. That is the entire argument, and it is a good one.

What follows is the practical version: which widths make sense as drawers, how much weight the runners will actually take, where pull-outs beat drawers, and the two places drawers are the wrong answer.

Start with the widths you actually have

British base units come in a fixed set of widths, and drawer units use exactly the same carcasses as cupboards. Nothing exotic is involved: 150, 300, 400, 500, 600, 800 and 1000mm, sitting on adjustable legs of roughly 150mm with a carcass around 720mm tall and 560 to 570mm deep. Doors and drawer fronts take the finished depth to about 580 to 600mm.

Our kitchen base units guide covers the full range. The relevant part for drawers is which of those widths earn their keep:

• 150mm. Too narrow for a useful drawer. This width belongs to a pull-out for trays, baking sheets or bottles, on runners rather than as a drawer box.
• 300 and 400mm. Good for cutlery, utensils, tea towels and wraps. Perfectly usable as a three-drawer stack, though the top drawer of a 300mm unit fills up fast.
• 500 and 600mm. The sweet spot for a pan drawer stack. Wide enough that a stockpot goes in flat rather than at an angle.
• 800 and 1000mm. The best storage in the kitchen and the one place drawer hardware genuinely matters, because a 1000mm drawer full of cast iron is a serious load on the runners.

If you are laying out the whole kitchen rather than replacing one unit, our guide to kitchen cabinet sizes sets out how these widths tessellate against appliances.

Drawer stacks: what goes where

A “pan drawer” is not a different product, just a deep drawer. The choice is how you divide the 720mm of carcass height.

Three-drawer stack. A shallow top drawer with two deeper ones below. This is the standard configuration, and the shallow top drawer is why it works: cutlery and utensils need depth of about a hand, not a saucepan.

Two-drawer stack. Two deep drawers, no shallow top. Better for pans and appliances, worse for everything small, because a fish slice at the bottom of a 250mm-deep drawer is a lost fish slice.

Drawer over cupboard. One shallow drawer above a door. Cheaper, and reasonable under a run where you need the cupboard for a bin or a boiler pipe.

Blum, the Austrian hardware maker whose runners sit under a large share of British kitchens, publishes three side heights for its LEGRABOX system: height M at 90.5mm, height C at 177mm and height F at 241mm, in nominal lengths from 350 to 550mm. Those numbers are worth knowing because they map directly onto the stack above. M is your cutlery drawer. C is a general drawer. F is the pan drawer.

The trick most kitchens miss: internal drawers

An internal drawer is a second drawer hidden behind a single tall front, sliding out on top of the main box. From the outside the kitchen still reads as clean, wide drawer fronts. Inside, a 600mm pan drawer gains a shallow tray for lids, spice jars or utensils that would otherwise be buried under the pans.

They cost a fraction of an extra unit and they solve the classic complaint about deep drawers, which is that everything ends up in one heap. If you are specifying a kitchen and the quote does not mention them, ask.

Weight limits, and why they are not a detail

This is the specification that separates a drawer that still runs sweetly in ten years from one that starts to sag and catch.

Blum rates LEGRABOX in two load classes, 40kg and 70kg. Its older Tandembox system is commonly listed by UK suppliers at up to 30kg. Those are full-drawer figures, not per-item.

Do the sum before you dismiss it. A cast iron casserole is easily 5 to 7kg. A stack of three, plus a stockpot, a couple of frying pans and their lids, and a 1000mm pan drawer is well past 30kg without anything unusual in it. On a wide pan drawer, specify the higher load class. On a cutlery drawer it makes no practical difference.

Two related points worth checking in a quote:

Whose runners are they? “Soft-close drawers” tells you nothing. Blum, Hettich and Grass are the three names that indicate a real hardware budget. An unbranded runner is where a cheap kitchen hides its cost saving, and it is the part you cannot easily upgrade later.

Full extension or partial? A partial-extension runner leaves the back 100mm or so of the drawer under the worktop, which quietly undoes the reason you bought drawers. Full extension should be the default.

Soft-close is close to standard now. Push-to-open, for handleless kitchens, is a separate mechanism and worth trying in a showroom before committing, because opinions on it divide sharply and it behaves differently when the drawer is heavily loaded. Our guide to in-frame versus handleless kitchens covers that decision properly.

Pull-outs: where they beat a drawer

A pull-out is a shelf or basket assembly on runners inside a cupboard, rather than a drawer box with its own front. Four situations where it is the better answer.

The corner. Blind corner units are the worst storage in any kitchen, and this is the problem the German maker Kesseböhmer built its business on. The LeMans system uses kidney-shaped shelves that swing right out of the cabinet, and Kesseböhmer states it increases the usable storage area by up to 70%. UK suppliers list it to suit 400, 450, 500 and 600mm doors, with each tray rated to around 25kg and swinging out independently. The Magic Corner works differently, pulling a front basket out and drawing a rear one sideways into the gap, and is typically listed for 900 and 1000mm blind corners with a higher load rating.

Both are expensive. Both are still cheaper than losing half a cubic metre of a kitchen you paid for. See kitchen corner units for how the different corner arrangements compare.

The tall larder. A larder pull-out brings the entire contents of a tall unit forward on runners, so the back of the top shelf stops being a graveyard for tinned goods. In a tall kitchen unit this is transformative, because the alternative is reaching over your own head into a dark shelf.

The 150mm gap. A tray or bottle pull-out, usually in the awkward filler width beside an appliance. Baking sheets, chopping boards and roasting tins stand on edge, which is the only sensible way to store them.

Bins and recycling. A pull-out bin unit under the sink or beside it, usually in a 400, 500 or 600mm carcass, splitting into two or three compartments. Fitting this at the design stage rather than living with a freestanding bin is one of the cheapest good decisions in a kitchen.

Two places drawers are the wrong answer

Under the sink. The waste trap and the water supply run straight through the space a drawer box needs. Some manufacturers sell a U-shaped drawer that clears the plumbing, and they work, but they cost more and hold less than the cupboard they replace. A pull-out bin or a simple cupboard is usually the better call.

Anywhere the run is under about 300mm. Below that width the drawer box and runners eat too much of the internal space to be worth the hardware. Use a pull-out.

Organising them once they are in

Deep drawers turn into pits without dividers, and the divider system is a real decision rather than an afterthought.

• Fixed inserts cut to the drawer are tidiest and least flexible.
• Adjustable dividers that clamp or peg into position handle changing needs and are the right default for a pan drawer.
• Peg systems, a base board with movable pegs, hold plates and bowls upright in a deep drawer, which is the only way to store crockery in a drawer without it sliding around.

The other half of the job is where things live. Put pans in the drawer next to the hob, plates and bowls in the drawer nearest where you plate up, and cutlery next to the dishwasher so unloading is a single turn. It sounds obvious and it is routinely got wrong, because kitchens tend to be filled in the order the boxes were unpacked.

Frequently asked questions

What widths do kitchen drawer units come in? The same as base cupboards: 150, 300, 400, 500, 600, 800 and 1000mm, on a carcass roughly 720mm tall and 560 to 570mm deep. Below 300mm a drawer box is not worth the hardware, so those widths are normally fitted as pull-outs instead.

How much weight can a kitchen drawer hold? It depends on the runner. Blum rates LEGRABOX at 40kg or 70kg per drawer, and its Tandembox system is commonly listed at up to 30kg. A wide pan drawer with cast iron in it can reach 30kg without trying, so specify the higher class on 800 and 1000mm units.

Are pan drawers better than cupboards? For pans, yes. A drawer brings the full depth out to you so nothing gets lost at the back, and it saves you kneeling. The trade-off is cost, since a drawer stack is more expensive than a door and shelf, and drawers are the wrong answer under the sink where the plumbing is in the way.

What is an internal drawer? A second, shallower drawer hidden behind a single tall drawer front, sliding out above the main box. It gives you a tray for lids, utensils or spices inside a deep pan drawer while keeping the clean look of wide fronts outside. Cheap to add at the design stage, awkward to retrofit.

What is the best solution for a corner kitchen cabinet? A pull-out mechanism rather than a fixed shelf. LeMans swings kidney-shaped trays fully out of the cabinet and suits 400 to 600mm doors; Magic Corner style systems draw a rear basket sideways into the gap and suit 900 to 1000mm blind corners. Both cost real money and both beat losing the corner entirely.

Should I choose soft-close or push-to-open drawers? Soft-close is effectively standard and suits almost everyone. Push-to-open exists mainly to serve handleless designs, and it feels different under load, so try a heavily loaded drawer in a showroom before you commit the whole kitchen to it.