You’re staring at a box supplier’s website wondering why anyone needs five different sizes. The short version: each removal box size is built for a specific job, and using the right one keeps your belongings safe and your back in one piece. Pack heavy items in oversized boxes and the bottom blows out. Pack light items in small boxes and you’ll triple the box count for no good reason. This guide explains the standard removal box sizes used in the UK, what to pack in each, and why double-walled cartons earn their keep.
The standard removal box sizes
Most UK removals firms and box suppliers stock five core sizes, plus a couple of specialist boxes. Sizes vary slightly between suppliers but the categories are consistent. Approximate dimensions are given for reference.
- Small box (book box, approx 30 x 30 x 40cm): for heavy, dense items. Books, vinyl records, magazines, hand tools, tinned food, small appliances, anything where the weight builds up fast. Cap weight at around 15kg per box so it stays liftable.
- Medium box (general purpose, approx 45 x 45 x 45cm): the workhorse box. Pots and pans, small kitchen kit, toys, shoes, mixed household goods, lighter food cupboard items. Cap at around 18kg.
- Large box (light bulky, approx 50 x 45 x 60cm): for lightweight bulky items only. Bedding, pillows, duvets, soft toys, lampshades, light winter coats, plastic kitchen items. Don’t be tempted to fill the space with books, you’ll be sorry on stair five.
- Extra-large or “tea-chest” box (approx 50 x 50 x 75cm): the largest standard box, used for very bulky lightweight items: cushions, coats on hangers (without a wardrobe box), bulky duvets and bedding sets. Heavy but liftable when packed correctly with light items only.
- Wardrobe box (approx 50 x 60 x 110cm): a tall box with a hanging rail at the top. Clothes go straight from the wardrobe onto the rail without folding or wrinkling. Indispensable for anyone with formal wear, suits, or dresses they’d rather not iron at the new property.
- Dish-pack or cell box (approx 45 x 45 x 50cm with internal dividers): a reinforced box with cardboard dividers creating individual cells. Built for glassware, stemware, vases, and china. The dividers stop items knocking together. Our guide to packing fragile items covers the wrapping techniques that go alongside the right box.
- Picture or mirror box (approx 90 x 5 x 80cm, expandable): flat boxes designed to take framed art, mirrors, and large prints on edge. Far safer than improvising with cardboard sheets.
A typical 3-bed UK move uses around 50 to 80 boxes total, mostly mediums and smalls, with a handful of larges and a few specialist boxes thrown in. Bigger or more book-heavy households go higher.
What to pack where: a quick rule
When you’re standing in a room wondering which box size to grab, the rule is simple: dense items go in small boxes, bulky items go in large boxes, fragile items go in the right specialist box. The size of the box should match the weight of the contents, not the size of the items. For room-specific advice on what to pack first and how to label as you go, see our room-by-room packing guide.
Two common mistakes:
- Packing books in a large box. A large box of books weighs 35kg and ruptures at the bottom seam. Use small boxes, full to the brim, capped at 15kg. The box count will be high; that’s the right answer.
- Packing duvets in a small box. Small boxes are wasted on bulky soft items. Use large or tea-chest boxes for anything voluminous and light, and pack them tightly so they don’t shift.
Tea-chest vs corrugated double-walled
The “tea-chest” name comes from the original wooden tea chests used by removals firms decades ago. Today the term refers to a specific size of corrugated cardboard box, but the underlying material question still matters: single-walled or double-walled.
Single-walled cartons have one layer of corrugated cardboard. They’re cheaper, lighter, and fine for very light contents (cushions, soft toys, empty plastic containers). For most items they’re not up to the job. The bottom flexes, the sides crush, and stacking three single-walled boxes results in a sad pile of crumpled cardboard.
Double-walled cartons have two layers of corrugated cardboard with a flute between them. They’re stronger, stack reliably, and survive being moved several times if you’re going via storage. Almost every box used by a professional removals crew is double-walled, and it’s worth paying the small premium for self-packers too.
Buy or hire double-walled boxes from your removals firm or a dedicated supplier. Our packaging materials range covers all the standard sizes plus wardrobe, dish-pack, and picture boxes, all double-walled and all sized to UK industry standards.
Avoid supermarket boxes. They’re free, but they’ve already had one life carrying produce, they’re often single-walled, and they vary wildly in size, which makes stacking in the van inefficient.
How many boxes you’ll need
Rough guidance for a typical UK move, assuming a sensible amount of decluttering beforehand:
- 1-bed flat: 20 to 35 boxes
- 2-bed house: 35 to 55 boxes
- 3-bed house: 50 to 80 boxes
- 4-bed house: 70 to 110 boxes
- 5-bed house: 100 boxes and up
These figures are total box count across all sizes, leaning more heavily on small and medium for most households. Add wardrobe boxes based on how much hanging clothing you have (usually two to four per wardrobe in the house). Add picture boxes for any framed art over A3 size.
Most suppliers will let you over-order and return unused boxes for a small restocking fee. If you’re hiring rather than buying, that’s even simpler.
Reusing, hiring, or buying
Three options for sourcing boxes:
Buy new. Roughly £2 to £4 per medium box, slightly more for specialist sizes. Yours to keep, useful for storage afterwards.
Hire. Many removals firms offer box hire, sometimes for plastic crates that stack neatly and don’t degrade. Cheaper than buying for a one-off move, and the firm collects them after.
Reuse. If a friend has just moved, ask. Used double-walled boxes that have only been packed once are still good for a second move, particularly for non-fragile items. Inspect for water damage and crushed corners before relying on them.
For most movers, a mix works best: hire or buy the bulk of mediums and smalls, splurge on new for fragile or specialist boxes, and reuse anything sound that comes your way.
When a packing service makes more sense
If the prospect of ordering, assembling, packing, labelling, and unpacking 70 boxes feels like a part-time job you don’t have time for, it is. A professional packing service handles all of that, and our crews arrive on packing day with the right boxes, the right materials, and the experience to pack faster and tighter than most self-packers. The same team packs, loads, and delivers, so nothing gets lost in the handover.
It’s not the right answer for every budget, but for time-poor households, families with young children, or anyone moving with a lot of fragile or valuable items, the cost is often less than people expect.
Get a quote for your move
The right boxes, in the right sizes, packed to the right weight: most of packing well is just that. Double-walled, sized to the contents, and labelled clearly will see your belongings through the move with minimal drama.
For a free, no-obligation quote on your move, with or without a packing service quoted alongside, fill in our contact form or call us on 0800 043 5393 to speak to one of our team. We’ll talk you through what’s involved, give you a clear quote, and answer any questions before you commit. No pressure either way.