A 10 x 30 storage unit is 10 feet wide and 30 feet deep, giving you around 300 square feet of floor space. In metric terms, that's roughly 3.05 metres by 9.14 metres, or about 27.9 square metres. Most units have ceilings about 8 feet high, providing about 2,400 cubic feet of total storage space (about 68 cubic metres).
Key takeaways
Floor area is 300 square feet, about 27.9 square metres
Typical height around 8 feet, giving roughly 2,400 cubic feet of space
Great for storing the contents of a large four or five bedroom home (big furniture, appliances, and boxes)
Can work like a small personal warehouse for business stock or equipment
Use sturdy shelving or stack similar sized boxes to make the most of the space
10x30 capacity at a glance
Measure | Imperial | Metric | What this means |
|---|---|---|---|
Width by depth | 10 ft by 30 ft | 3.05 m by 9.14 m | Size of an extra long single garage or small double garage |
Floor area | 300 sq ft | 27.9 sq m | Enough for lots of large furniture, appliances, and boxes |
Typical height | 8 ft | 2.4 m | Check site for exact height |
Approx volume | 2,400 cu ft | 68.0 cu m | Plenty of room for furniture, equipment, or stock |
In the market for a 10x30 unit, or maybe something smaller? HOLD offers secure, modern storage in every size. Reserve your 300 sq ft space in minutes online, and stock up on boxes and tape from our online Box Shop.
What's the size of a 10x30 storage unit?
Picture an extra-long garage or a small double garage. A 10x30 storage unit gives you around 300 square feet of space, enough for the contents of a large four or five-bedroom home, including big furniture, appliances, bikes, and plenty of boxes, with room to keep walkways clear if you plan your layout carefully.
How many boxes fit in a 10x30 storage unit?
You can usually fit between 180 and 300 medium boxes in a 10x30 storage unit, depending on how much furniture or other large items you're storing. 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 10x30 storage unit?
- Bedrooms: Up to five full bedroom sets including beds, mattresses, wardrobes, chests of drawers, and bedside tables.
- Living areas: Multiple large sofas, armchairs, TV units, coffee tables, side tables, lamps, and rugs.
- Appliances: Fridge-freezer, second freezer, washing machine, dryer, dishwasher, and smaller kitchen appliances.
- Dining and study: Full dining table with six to eight chairs, a second smaller table, desks, shelving units, and boxed monitors or computers.
- Garage and outdoor: Several bicycles, garden tools, lawnmower, patio sets, barbecue, or a motorbike, with room for extra bulky gear.
- Sports and hobbies: Larger exercise equipment, multiple sets of golf clubs, camping gear, skis, or surfboards.
- Boxes: Seasonal clothing, kitchenware, books, home décor, archived files, or bulkier business stock, with space to keep walkways clear.
Why choose a 10x30 unit?
It’s a generous, all-round option that easily handles whole-home moves, full clear-outs, or bulk business storage. There’s room for large furniture, appliances, shelving, and stacked boxes, giving you small-warehouse style space and breathing room without stepping up to full warehouse costs..
How to make the most of your storage space
- Stick to similar box sizes, stacking heavier ones at the bottom and lighter ones on top.
- Line taller items up against the walls and leave a narrow walkway through the middle so you can move around easily.
- Remove legs from smaller furniture and tape any screws or fittings securely to the same item.
- Put anything you'll want to reach first near the door, and label at least two sides of every box.
- If you're storing things for a while, keep fabric items off the floor on pallets or shelving.
Features to look for in a 10x30 unit

Pick a site with features that keep move in and day to day access easy.
- Look for clear security, like CCTV, PIN-controlled entry, and the option to use your own padlock.
- Check for simple access, including ground-floor units, reliable lifts, wide corridors, on-site trolleys, and practical loading bays.
- Expect helpful support from friendly staff, straightforward policies, and a smooth first check-in with photo ID.
- It's also useful to have supplies on site, such as boxes, tape, bubble wrap, and other packing materials.
HOLD Self Storage provides all of these features and more (like a price match and 50% off), making your move-in simple and stress-free.
Is a 10x30 storage unit right for you?
If you're moving the contents of a larger home with lots of furniture, managing bulky business stock, or need space for furniture and equipment during big renovations, a 10x30 unit is a great fit. It offers room for your largest items, including sofas, appliances, shelving, and even oversized pieces, and can work like a small personal warehouse with plenty of box space left over.
If you only have lighter household items or a smaller load, a 10x20 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.
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Why choose HOLD Self Storage?
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We are a brand-new self storage company created by Londoners, for Londoners. Our first site is located in London's Kings Cross.
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50% off up to 8 weeks

Pay half price for the first 8 weeks, free move-in van hire and we price match within 3 miles (T&Cs)
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Get a free quote and book online in a few quick clicks. No stress.
- 50% off for 8 weeks (T&Cs)
- Free move-in van hire
- Price and deal matching service
- Off-street parking
- Secure buildings, alarmed units, CCTV
- 24-hour access with PIN code (on request)
- Modern, well-maintained building
- Award-winning customer service




