Nobody has a feel for what 50 square feet looks like. Storage companies price in square feet anyway. That mismatch is how people end up paying for space they never fill, or hiring a van twice. Here’s the translation table.

The anchor to hold onto: a 10ft shipping container is about the size of a small garage or big garden shed, and takes a one-bed flat’s entire contents. Everything else scales from there.

How storage sizes actually work

Units are priced on floor area. Height is standard-ish (containers around 8ft, indoor units similar), so the skill isn’t buying more floor. It’s using the air above it. Stack strong boxes to shoulder height and a unit holds half as much again as its floor plan suggests.

Real anchors people know: a transit van load works out at roughly 25 sq ft once it’s stacked, a single garage is about 108 sq ft, and your bathroom is probably 40 sq ft.

What fits in each size at iBOXED?

UnitRoughly the size ofPer month (inc. VAT)
10 ft Container Small Garage / Large Shed £90.00
20 ft Container Size of a Single Garage £118.80
90 sq ft Internal (First Floor) One Bedroom Apartment £130.00
90 sq ft Internal Small Garage / Large Shed £140.00
96 sq ft Internal Two Bedroom Flat £150.00
108 sq ft Internal Single Garage £160.00
135 sq ft Internal (First Floor) Large single garage or 7 tonne lorry; contents of a large 2-bed or small 3-bed house £160.00
135 sq ft Internal Large single garage or 7 tonne lorry; contents of a large 2-bed or small 3-bed house £160.00

iBOXED Redcar price list, checked 2026-10-02; see current availability on the Redcar units page.

Reading that as homes rather than numbers:

If you’re storing… You likely need
A student room or one room’s furniture Shared 10ft container (split it: see student storage)
A one-bed flat, everything 10ft container / 90 sq ft internal
A two-bed flat or selective house contents 96 sq ft internal / 20ft container
A 2-bed house, everything 108 sq ft (single-garage size)
A large 2-bed or small 3-bed house, everything 135 sq ft

Size guidance based on iBOXED's own unit descriptions (checked July 2026); packed properly, stacked to shoulder height.

For Teesside context: a typical terraced house in Redcar and Cleveland costs around £119,000. Everything inside one fits into a 108 sq ft unit. Store only what you’re actually keeping and you’ll need far less.

How to estimate your own load

The van-load method beats guessing. Walk each room and count transit-van loads (a van load ≈ 25 sq ft stacked). Most people’s mental inventory misses the loft, the shed and the garage, so walk those too.

Then knock a third off for everything you’ll decide not to keep once it’s actually in your hands. That purge is worth real money: our decluttering guide has the method.

The three classic sizing mistakes

  1. Renting for the pile, not the stack. Loose furniture eats floor; dismantled and stacked, it doesn’t. Take beds apart, stand sofas on end.
  2. Paying for air “just in case”. Start one size down and change later. Changing size online takes minutes; over-renting for six months costs real money.
  3. Packing with no walkway. If you’ll visit the unit (seasonal kit, business stock), leave a spine down the middle. If you’ll never visit until move-out, pack it solid.

See the sizes in person

Square feet on a screen is one thing. Standing in the doorway is another. Call in at Redcar or Ingleby Barwick and we’ll show you the sizes empty. You’ll know yours on sight, and we’d rather right-size you than upsell you.

What fits in a 10ft container?
Think small garage or large shed: the contents of a one-bed flat packed properly. Sofa on end, mattress, boxes stacked to shoulder height, bike down the side. It’s the workhorse size, and at iBOXED Redcar it’s the cheapest at £90 a month including VAT.
Do I pay for height in a storage unit?
Sizes are quoted in floor area (square feet), so height is effectively free space. Stack sturdy boxes to shoulder height and you can fit far more than the floor plan suggests. Heavy boxes low, light on top, and keep one walkway to the back.
Can I change unit size later?
At iBOXED, yes. The online booking system lets you change unit size, so start smaller than you think and move up only if the door won’t shut. It’s much cheaper than the common mistake of paying months of rent on empty air.
What size unit for a 3-bed house?
A full 3-bed house, furniture included, typically needs around 135 sq ft, the size of a large single garage. If you’re storing selectively (no white goods, no wardrobes), a 90–108 sq ft unit usually does it.