UK Storage Unit Sizes | Compare Sq Ft, m² & Capacity

UK storage is commonly advertised in square feet. Compare the floor areas below, then use the inventory calculator to allow for stacking, gaps and access. Providers offer different size steps and room shapes.

Areas shown to the same scale as square footprints. Actual units can be narrow, wide or irregular.

Floor area and empty-room volume

Volume assumes a 2.4 m internal height; it is not usable belongings capacity.
Floor area	Metric area	Empty-room volume	Broad scale
10 sq ft	0.93 m²	2.2 m³	Boxes / small belongings
15 sq ft	1.39 m²	3.3 m³	Boxes / small belongings
20 sq ft	1.86 m²	4.5 m³	Boxes / small belongings
25 sq ft	2.32 m²	5.6 m³	Boxes / small belongings
35 sq ft	3.25 m²	7.8 m³	Compact furniture load
40 sq ft	3.72 m²	8.9 m³	Compact furniture load
50 sq ft	4.65 m²	11.1 m³	Compact furniture load
60 sq ft	5.57 m²	13.4 m³	Compact furniture load
75 sq ft	6.97 m²	16.7 m³	Several furniture groups
80 sq ft	7.43 m²	17.8 m³	Several furniture groups
100 sq ft	9.29 m²	22.3 m³	Several furniture groups
125 sq ft	11.61 m²	27.9 m³	Several furniture groups
150 sq ft	13.94 m²	33.4 m³	Large household / business load
175 sq ft	16.26 m²	39.0 m³	Large household / business load
200 sq ft	18.58 m²	44.6 m³	Large household / business load
250 sq ft	23.23 m²	55.7 m³	Large household / business load
300 sq ft	27.87 m²	66.9 m³	Large household / business load

Lockers and very small spaces

A few boxes may need only a locker. Locker height may be much lower than room height; our room recommendations start at 10 sq ft. Confirm all three dimensions for a locker, and use the advanced height input when relevant.

Over 300 sq ft

Large household inventories or stock may need multiple units or commercial storage. Adding two unit areas does not prove a fit: each item must fit within one unit and access has to work in each space.

Calculate from my belongings →