Standard Metric Lockers

Standard metric lockers are Probe's solid-door steel lockers built to metric compartment sizes — 300, 380 and 450 mm — in 1800 mm full-height banks. Thirteen listings cover eleven configurations: 5, 6, 8 and 10 doors per column, in double-width (two columns) and triple-width (three columns) bodies, with flat or sloping tops. Every compartment carries a Type A cam lock as standard.

This is the range to specify when you are buying by compartment count rather than by compartment size — a nest of small lockers for a school corridor, a bank of daily-use lockers for a shift changeover, PPE storage where each user needs a slot rather than a wardrobe. If you need fewer, larger compartments, the sibling range is the standard imperial lockers, and the reason why is set out below.

The metric range at a glance

Every configuration we stock, with its total compartment count and the lowest published price for that listing. "Doors" is doors per column; a triple-width 10-door bank is 10 × 3 = 30 compartments in one carcass.

Doors per column	Width	Top	Total compartments	From
5	Triple	Sloping	15	£992.59
6	Triple	Flat	18	£990.64
6	Triple	Sloping	18	£1,064.95
8	Double	Flat	16	£1,035.41
8	Double	Sloping	16	£973.13
8	Triple	Flat	24	£1,322.62
8	Triple	Sloping	24	£1,396.93
10	Double	Flat	20	£1,057.87
10	Double	Sloping	20	£1,107.42
10	Triple	Flat	30	£1,621.61
10	Triple	Sloping	30	£1,695.92

Prices shown are the lowest variant on each listing at the time of writing and vary by compartment width and depth. The 10-door double-width appears twice in the table above because it is split across two separate listings — see the warning below before you compare them.

The range starts at five doors — and that is the most important thing on this page

There is no 2, 3 or 4-door locker in the standard metric range, and the 5-door exists in one configuration only. Checked against the two ranges side by side: the metric range holds eleven configurations, the imperial range holds nineteen, and every metric configuration has an imperial counterpart while eight imperial configurations have no metric equivalent at all. Those eight are 2, 3, 4 and 5-door triple-width and 6-door double-width — in other words, the whole large-compartment end of the range.

The practical consequence: if you are specifying a 2-door, 3-door or 4-door locker — full-length hanging space for coats, a wardrobe compartment, a bag-and-boots locker — you have two options, and neither is this range.

The first is the standard imperial range, where compartment sizes are 305, 381 and 457 mm. The difference is a few millimetres; the difference in what you can buy is the entire bottom half of the door-count range.

The second is metric after all, but in a different door style. The Vision Panel metric range does cover 2, 3 and 4 doors, and the perforated metric range covers 4 and 5 — both in metric compartment sizes. The catch is body width: those are single-column and wide-format bodies, not the multi-column nests sold here. A Vision Panel 2-door starts at £369.17 against £889.85 for the imperial standard 2-door, but that is two compartments against six, so per compartment the imperial triple is the cheaper of the two — £148.31 against £184.59. Compare on compartments, not on the headline. Vision panel doors also mean the contents are visible, which suits schools and shared kit and rules the range out where privacy matters.

One further quirk worth knowing before you plan a run: the 5-door triple-width is sold with a sloping top only. It is the single configuration in either range with no flat-top counterpart, so a 5-door metric bank cannot be specified flat-topped. If you need a flat top at low door counts, the nearest metric option is the 6-door triple at £990.64 — which is, oddly, £1.95 cheaper than the 5-door and gives you three more compartments.

Sizing: read the two numbers on the dropdown

Every variant is labelled with two dimensions — for example 300 × 450 mm. The first is the nominal compartment width; the second is the depth of the carcass. Height is fixed at 1800 mm across the entire range, so the only thing that changes as you move up the door count is how tall each individual compartment is, not how tall the bank is.

• 300 mm wide — the standard column width, and the only width offered on triple-width bodies. Fine for a coat on a hook, a bag, a helmet, PPE.
• 380 and 450 mm wide — offered on double-width bodies only. Worth the money where users bring bulky kit, or where a bag has to go in alongside a coat rather than on top of it.
• 300 mm deep — the shallow option. Suits corridors and any run where projection into a walkway matters.
• 380 mm deep — the sensible default for most workplaces.
• 450 mm deep — for hard hats, boots, folded hi-vis and anything that will not sit flat.

Not every listing offers every size. The triple-width bodies are all 300 mm wide with a choice of three depths. The double-width bodies mix widths and depths, and — as covered below — do not all start in the same place.

What each configuration actually costs per compartment

Buying lockers by headline price is misleading, because a bigger number frequently buys more spaces. Divide instead. Taking the cheapest published variant of each flat-top listing:

Configuration	Compartments	From	Per compartment
10-door double width	20	£1,057.87	£52.89
10-door triple width	30	£1,621.61	£54.05
6-door triple width	18	£990.64	£55.04
8-door triple width	24	£1,322.62	£55.11
8-door double width	16	£1,035.41	£64.71
5-door triple width (sloping only)	15	£992.59	£66.17

The spread is 25 per cent — £52.89 to £66.17 for a compartment in the same range, from the same manufacturer, in the same steel. Door count is what drives it. Each extra door in a column adds a shelf and a door, not a new carcass, so the marginal cost of the ninth and tenth compartment is far below the average cost of the first.

Two honest caveats on that table. The 8-door double-width figure is inflated because its cheapest variant is a 380 mm-wide compartment, not a 300 mm one — you are paying for width, not being overcharged. And the 5-door figure includes the sloping-top fee, because no flat-top 5-door exists to compare against.

Three things that move the price, and one that does not

Colour is free

Three carcass colours (silver/grey, black, white) and seven door colours (red, yellow, blue, green, black, white, silver) give 21 combinations, and every one is the same price — checked across all 63 variants on each listing. Colour-coding a changing room by department, shift or year group costs nothing. Specify it.

The sloping top is a flat fee per column

A sloping top costs £24.77 per column, every time — £74.31 on a triple-width bank, £49.53 to £49.55 on a double. It does not scale with door count or with price: the fee on the £990.64 6-door triple is identical to the fee on the £1,621.61 10-door triple. Buy it where the tops would otherwise collect dust, bags or bottles, or where you need to stop people climbing; skip it where the bank sits under a low soffit.

Worth knowing what you are and are not buying: ours is a factory-fitted sloping top, part of the carcass. We do not sell a retrofit sloping-top accessory that clips onto an existing flat-top locker — a large share of what is sold under the term "sloping top lockers" is that accessory rather than a complete locker. If you already own flat-top lockers and simply want the tops angled, we are not the supplier for that job.

Depth pricing is not proportional — and often reverses

Stepping up a size does not cost a consistent amount. Across the twelve metric listings that offer more than one size, a single step ranges from £6.40 to £129.09 — a twentyfold spread for what is nominally the same kind of change. On the 6-door triple, going from 300 to 380 mm deep costs £6.40 and the next step to 450 mm costs £62.21. On the 8-door triple the same two steps are £6.58 and £129.09.

And on eight of those twelve listings the second step costs less than the first. The 10-door triple goes up £51.71 for the first depth increase and only £31.56 for the second. The 10-door double does the same, £37.32 then £21.28.

Price the size you want against the one immediately below it. Do not assume a percentage, and do not assume that the biggest option carries the biggest jump — on two thirds of this range, it does not.

Two published prices that will mislead you if you compare them straight

Both of these are real, both are on this collection, and both invert the answer.

1. The 8-door double-width sloping top looks cheaper than the flat top. It is listed from £973.13 and the flat-top version from £1,035.41 — the sloping top appearing to save £62.28. It does not. The sloping listing includes a 300 mm-wide compartment option and the flat-top listing has no 300 mm option at all — it starts at 380 mm. Compare like for like at 380 × 380 mm and the flat top is £1,035.41 against the sloping top's £1,084.94. The sloping top costs £49.53 more, exactly as it should. The two "from" prices are wrong by £111.81 in the direction that flatters the more expensive product.

2. The 10-door double-width is split across two near-identically-named listings, £154.48 apart. One covers the 300 mm compartment widths and starts at £1,057.87; the other covers 380 and 450 mm and starts at £1,212.35. Both are titled "10 Door … Double Width" with only a bracketed size range to tell them apart. If you land on the second and not the first, the 10-door double looks £154.48 dearer than it needs to be. Check both before you price a 10-door double-width bank.

Metric or imperial? The 20 per cent rule, and the one exception

The two ranges are the same lockers in slightly different sizes, and the pricing relationship between them is exact. Across eighteen matched flat-top pairs — same door count, width, compartment width, depth and colour — the imperial carcass is 1.2000 times the metric price, to the penny, every time. The metric 10-door triple at £1,621.61 becomes £1,945.93 in imperial; the 6-door triple at £990.64 becomes £1,188.77.

The sloping top is the exception. It is priced outside the uplift: the £24.77-per-column fee is the same on both ranges, so on a sloping-top locker only the carcass carries the 20 per cent. Confirmed on six matched sloping pairs to within a penny. In practice, the sloping top is the only part of an imperial locker you do not pay 20 per cent more for.

So metric is cheaper like for like — but there is a trap in the other direction, and it is worth stating plainly. The cheapest complete locker bank in either range is an imperial one: the 6-door double-width flat top at £801.18. That is £171.95 below anything in the metric range, for the simple reason that the 6-door double does not exist in metric. It gives you 12 compartments at £66.77 each — the dearest per compartment on either range. Cheapest bank, dearest spaces. Which of those two numbers matters depends entirely on whether you need 12 lockers or 20.

Locking: one option, stated honestly

Every compartment across this range is fitted with a Type A cam lock as standard, keyed differently, with a coat hook inside each compartment and ventilation slots in the reinforced door. The product data lists no padlock hasp, no coin-return, no combination and no electronic locking option on any locker in this range, so none should be assumed or quoted to a client. If your specification calls for coin-return or digital locks, this range will not meet it. Our guide to locker lock types covers what each mechanism suits.

Tiers, nests and banks — the same thing, three words

Locker terminology is inconsistent across the trade, which makes specifying harder than it should be. For clarity:

• A tier is a horizontal level of compartments. A "5 tier locker" is what we list as a 5-door locker — five compartments stacked in one column.
• A nest is the number of columns joined side by side. A nest of 3 is what we call triple width; a nest of 2 is double width.
• A bank is the complete assembled unit as delivered — so a 10-door triple-width locker is a 30-compartment bank, or "10 tier, nest of 3".

Nested columns share internal carcass walls, which is why the cost per compartment falls as the nest widens: you buy one set of ends rather than three. It is also why a nest cannot be split later — plan the run before you order.

Specifying a run

1. Count users, not lockers. Allocated storage needs one compartment per person; daily-use storage in a shift environment can run at a lower ratio.
2. Decide compartment size first, door count second. Size is a comfort and fit decision; door count is a cost decision, and the cost decision has a 25 per cent spread.
3. Measure the wall, then divide by 300 mm. Triple-width bodies are 300 mm per column, so a 2.7 m clear run takes three triple-width banks exactly.
4. Check the depth against the walkway. A 450 mm carcass with a door swing needs meaningfully more clearance than a 300 mm one.
5. Add seating. Changing areas with lockers and no bench get congested — see the cloakroom benches range.

For the wider context, browse the full metal lockers range, the complete Probe collection, or read our guides to choosing metal lockers for the workplace, school lockers, staff and workplace lockers and gym and changing-room lockers. Where users need to charge devices while they are stored, see the PowerBox charging lockers. Where visibility into the compartment is required, see the vision panel and perforated ranges — noting that the perforated option is triple-width only.

Frequently asked questions

What is the difference between metric and imperial Probe lockers?

Compartment sizes. Metric lockers use 300, 380 and 450 mm; imperial use 305, 381 and 457 mm. Both are 1800 mm tall. The imperial carcass is priced at exactly 1.2000 times the metric equivalent, verified across eighteen matched pairs, but the imperial range offers eight configurations that metric does not — all at the low-door-count, large-compartment end.

How many doors can I get in a metric locker?

Five, six, eight or ten per column in this standard metric range, and the 5-door is sloping-top only. For 2, 3 or 4 doors you need either the standard imperial range or the Vision Panel metric range, which covers those door counts in single-column and wide-format bodies rather than nests.

What is a 6 tier locker?

The same thing as a 6-door locker — six compartments stacked in a single column. "Tier" counts levels; "nest" counts columns joined side by side. A 6-door triple-width bank is 6 tier, nest of 3, giving 18 compartments.

How tall are these lockers?

1800 mm across the entire range, in every door count and both top styles. A sloping top is measured to the highest point of the slope. Door count changes the height of each compartment, not the height of the bank.

How much does a sloping top add?

£24.77 per column — £49.53 to £49.55 on a double-width bank, £74.31 on a triple. It is a flat fee, identical on the cheapest and the most expensive locker in the range, and it is priced the same on the imperial range.

Do coloured doors cost more?

No. Three carcass colours and seven door colours give 21 combinations at an identical price on every variant of every listing. Colour-coding costs nothing.

Which metric locker gives the most storage for the money?

The 10-door double-width, at £52.89 per compartment from £1,057.87 for 20 spaces. The dearest is the 5-door triple at £66.17 per compartment — a 25 per cent spread within one range.

Can I fit a padlock to these lockers?

No. Every compartment comes with a Type A cam lock and the product data lists no padlock hasp, coin-return, combination or electronic option anywhere in this range. If a specification calls for those, this range does not meet it.