What can I fit in a 10x20?

Large sofas, wardrobes, appliances, mattresses, shelving, and plenty of boxes. It also suits business stock, racking, and seasonal equipment with space for a clear aisle.

What’s the door opening on a 10x20, and will my largest item fit?

Doors are typically around 0.9 metres wide with a clear height similar to the unit’s internal height. Measure your biggest item and compare with your booking screen before moving day.

How many boxes will it hold?

Around 120 to 200 medium boxes. Matching box sizes and neat stacking reach the higher end; mixed shapes or lots of furniture reduce capacity.

Is the 10x20 suitable for long-term storage?

Yes. Clean and dry appliances, lift textiles on pallets or shelving, and label two sides of every box for easy access.

Is a 10x20 storage unit big enough for a car?

In pure dimensions, yes, it’s comparable to a single garage. However, HOLD doesn’t offer vehicle storage, so cars and motorbikes aren’t permitted.

Does HOLD offer 24 hour access?

Yes. HOLD offers free 24/7 access at all sites. During office hours, ask reception to enable your PIN and you can enter outside staffed times the same day. Always check your booking for any site-specific details.

Can I change my HOLD unit size later?

Of course! You can move to a larger or smaller unit at any time, subject to availability. The team will help you switch quickly.

How secure are HOLD storage units?

HOLD sites use multiple measures: 24-hour CCTV, individually alarmed units, personal PIN entry, monitored burglar alarms, and fire detection. Corridors and loading areas are lit and covered by cameras for added peace of mind.

How Big is a 10x20 Storage Unit?

0203 657 2900

Reviewed by the HOLD editorial team - updated 28 October

A 10 x 20 storage unit is 10 feet wide and 20 feet deep, giving you around 200 square feet of floor space. In metric terms, that’s roughly 3.05 metres by 6.10 metres, or about 18.6 square metres. Most units have ceilings about 8 feet high, providing about 1,600 cubic feet of total storage space (about 45 cubic metres).

Key takeaways

Floor area is 200 square feet, about 18.6 square metres
Typical height around 8 feet, giving roughly 1,600 cubic feet of space
Great for storing the contents of a three-bedroom house (large furniture, appliances, and boxes)
Vehicles, business stock, or equipment can fit comfortably
Use sturdy shelving or stack similar-sized boxes to make the most of the space

10x20 capacity at a glance

Note: internal unit height may differ by site
Measure	Imperial	Metric	What this means
Width by depth	10 ft by 20 ft	3.05 m by 6.10 m	Size of a standard single garage
Floor area	200 sq ft	18.6 sq m	Enough for large furniture, appliances, and boxes
Typical height	8 ft	2.4 m	Check site for exact height
Approx volume	1,600 cu ft	45.3 cu m	Plenty of room for furniture, equipment, or stock

Need a 10x20 unit, or something a different size? HOLD offers clean, modern storage in every size. Reserve your 200 sq ft space in minutes online, and stock up on boxes and tape from our handy Box Shop.

What's the size of a 10x20 storage unit?

Picture a standard garage or a roomy home workshop. A 10x20 storage unit gives you space for the contents of a three to four-bedroom home (furniture, appliances, bikes, and plenty of boxes) with room left to move around if you plan your layout smartly.

How many boxes fit in a 10x20 storage unit?

You can usually fit between 120 and 200 medium boxes in a 10x20 storage unit, depending on how much furniture or other large items you store. Sticking to boxes of the same size helps you stack neatly and make the most of the height, while a mix of shapes will reduce the total count.

Leave a small gap between stacks so you can reach items without needing to move everything around.

What can you store in a 10x20 storage unit?

Bedrooms: Up to three full bedroom sets including beds, mattresses, wardrobes, chests of drawers, and bedside tables.
Living areas: Large sofas, armchairs, TV units, coffee tables, side tables, lamps, and rugs.
Appliances: Fridge-freezer, washing machine, dryer, dishwasher, and smaller kitchen appliances.
Dining and study: Full dining table with six to eight chairs, desks, shelving units, and boxed monitors or computers.
Garage and outdoor: Bicycles, garden tools, lawnmower, patio furniture, barbecue, or a motorbike.
Sports and hobby: Exercise equipment, golf clubs, camping gear, skis, or surfboards.
Boxes: Seasonal clothing, kitchenware, books, home décor, archived files, or business stock.

Why choose a 10x20 unit?

It’s a spacious, all-round option that easily handles big moves, full clear-outs, or business storage. There’s room for large furniture, appliances, and boxes with space to spare. Ideal if you need flexibility for short-term storage or want breathing room without paying for an oversized unit.

How to make the most of your storage space

Keep box sizes consistent, stacking heavier ones at the bottom and lighter ones on top.
Position taller items along the walls and leave a narrow walkway down the middle.
Take legs off smaller furniture and tape any screws or fittings to the same piece.
Place items you’ll need first near the door, and label at least two sides of every box.
If you’re storing for a while, lift fabric items off the floor on pallets or shelving.

Features to look for in a 10x20 unit

Choose features that make move in and day to day access easy.

Look for visible security, including CCTV, PIN-controlled entry, and the ability to use your own padlock.
Check for easy access options such as ground-floor units, reliable lifts, wide corridors, on-site trolleys, and practical loading bays.
Expect clear support, with friendly staff, straightforward policies, and a smooth first check-in using photo ID.
It’s also handy to have Supplies on site, like boxes, tape, bubble wrap, andother packing materials.

HOLD Self Storage provides all of these features and more, making your move-in simple and stress-free.

Get an instant quote and price match for storage in London.

Is a 10x20 storage unit right for you?

If you’re moving the contents of a larger home, managing business stock, or need space for furniture and equipment during renovations, a 10x20 unit is a great fit. It offers room for big items like sofas, appliances, and shelving, with plenty of box space left over.

If you only have lighter household items or a smaller load, a 10x15 might give you all the space you need while keeping costs lower.

Measuring and access checklist

Longest item length and height (note in centimetres)
Unit door width and height (check your specific unit)
Route to the unit: lifts, stairs, tight turns
Lift car size (W × D × H) and weight limit, if using a lift
Parking distance to the loading bay and vehicle height clearance

What you can’t store

For safety and legal reasons, certain items cannot be stored. This is a summary. Refer to your Storage Licence Agreement and insurance policy for the full list and definitions.

Perishables and living things: food, plants, live animals
Flammables/explosives: petrol, diesel, solvents/paints, gas canisters, fireworks
Hazardous/chemical: toxic, corrosive, pressurised, or radioactive materials
Illegal or stolen items: anything unlawful to possess or store
Cash and high-risk valuables: cash, securities (check policy for jewellery limits)

Do I need Insurance?

Yes. Everything in storage must be insured for its full replacement value. Insurance protects your belongings against risks like fire, flood, and theft, and is a condition of your rental.

You can provide your own policy (proof required before move-in) or choose the HOLD Protection Plan at checkout, which covers fire, flood, and theft after forced entry. Always review your Storage Licence Agreement and policy documents for full details.