Work out storage unit sizing instantly with clear inputs, formula shown and shareable results.
Storage sizing works from volume: standard boxes are about 0.09 cubic metres each, large furniture items around 0.9 and appliances 0.55. Adding an access allowance and dividing by a 2.4 metre stacking height converts volume into the floor area you need to rent.
Net volume
Net = Boxes x 0.09 + Furniture x 0.9 + Appliances x 0.55 cubic metres
Floor area
Area = Net volume x (1 + Access allowance %) / 2.4 metre height
Yes if you need to reach items during the storage period. If it is a sealed long-term store, the allowance can be much smaller.
Usually to about 2.4 metres safely. Heavier items must go at the bottom, which limits how much of the height is genuinely usable.