How Big is a 4x4 Storage Unit?

A 4 by 4 storage unit is four feet wide and four feet deep, about 1.22 by 1.22 metres. That’s around 16 square feet of floor space, roughly 1.5 square metres. With a typical ceiling height of about eight feet (around 2.44 metres), you get close to 128 cubic feet of space, about 3.6 cubic metres.

On the hunt for a 4x4 unit? Our 15 sq ft unit is ideal and great value. Our London facilities have modern storage units in every size. Book online in minutes, and pick up boxes and tape from our online Box Shop.

Size-wise, it’s a compact square, similar to a small cupboard. A 4x4 footprint suits a tidy stack of boxes and a few small items, with enough room to step in if you keep a slim aisle.

A good rule of thumb is 6 to 10 medium boxes. If you use matching sizes and stack neatly, boxes only can reach 10 to 12. Keep a small gap between stacks so you can lift one out without rebuilding the whole row.

• Wardrobe bits: one short rail or two wardrobe boxes, a few vacuum bags, shoes.
• Small pieces: one bedside table or flat-packed side table, slim lamp.
  Bedroom: single mattress on edge or two under-bed boxes, folded bedding.
• Study: desktop PC or small printer, one 24-inch monitor boxed, a few folders.
• Sports/hobby: child’s bike or narrow-bar city bike, golf clubs or compact camping kit.
• Small appliances: microwave or dehumidifier, one slim bookcase or light shelving.
• Seasonal: one to two cabin suitcases, a box of decorations, small fan or heater.

It’s a tidy option when you want a small footprint and a small bill. Ideal for students, city renters, and anyone between places who needs a short-term solution. Ideal for rotating clothing and sports kit, or storing documents you don't need every day.

• Pick one box size where you can, heavy cartons at the bottom, lighter ones on top.
• Build taller stacks along a wall and keep a narrow walkway down the middle.
• Take legs off small furniture and tape the screws to the same item.
  Place first-need items by the door and label two sides of every box.
• For longer stays, raise textiles on a pallet or shelf to keep them off the floor.

Typical height is about 2.4 metres, door width often about 0.9 metres, check your booking screen for specifics.

Choose features that make move-in simple and everyday access smooth.

• Good security, 24-hour CCTV, PIN entry, and your own padlock on the unit.
• Easy access, ground floor or reliable lifts, wide corridors, trolleys, and practical loading bays.
• Clear support, friendly staff, straightforward policies, and an easy first check-in with photo ID.
• Supplies on site, like cardboard boxes, tape, bubble wrap, and other packing materials.
  

HOLD Self Storage provides all of the above, plus on-hand support when you need it.

Pick this size if you are clearing a single room, storing seasonal kit, or bridging a small move. If you have a two seater sofa, a double mattress and frame, or more than about 10 to 12 medium boxes, a 5x5 might feel more comfortable.

For safety and legal reasons, certain items are not allowed. This is only a summary. Always check your Storage Licence Agreement and your insurance wording for full details. Typical exclusions include:

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

Yes. Everything you store must be insured for its full replacement value. You can upload your own policy with proof before move-in, or add the HOLD Protection Plan at checkout, which covers fire, flood, theft after forced entry, and more.

Choose a cover amount that reflects what it would cost to replace your items today, then review the Storage Licence and policy for the full terms and exclusions.