Find the right storage unit size and estimated cost for your items
Self-storage has become increasingly popular in the UK, with the industry growing steadily over the past decade. Whether you are decluttering, moving house, renovating, or running a small business, choosing the right size storage unit is crucial -- too small and your belongings will not fit safely, too large and you are paying for empty space every month. The UK self-storage industry is worth over GBP 1 billion, with major operators including Big Yellow, Safestore, Shurgard, and numerous independent facilities. According to the Self Storage Association UK (SSA UK), approximately 1 in 35 UK households uses self-storage, compared to 1 in 10 in the United States. The typical storage customer rents a unit for 6-12 months, though short-term storage of just a few weeks is also common, particularly during house moves. Storage units in the UK are measured in square feet, with the most common sizes being 25 sq ft (a large closet), 50 sq ft (a single garage), 75 sq ft (one and a half garages), 100 sq ft (a double garage), and 150 sq ft (a very large room). Prices vary significantly by location -- central London storage can cost two to three times as much as equivalent space in northern England or Wales. Most facilities offer flexible contracts with one to four weeks' notice, climate control options, and 24-hour access.
To find the right storage unit size: 1. Enter the number of bedrooms worth of furniture you need to store. Each bedroom's contents (bed, wardrobe, chest of drawers, bedside tables) requires approximately 25 sq ft of storage space. 2. Toggle large appliances if you are storing items like a fridge-freezer, washing machine, or tumble dryer. These bulky items need about 25 sq ft of additional space. 3. Toggle garden furniture if you are storing outdoor tables, chairs, parasols, or similar items. Garden furniture typically needs 15 sq ft. 4. Enter the number of boxes you are storing. Standard moving boxes stack efficiently -- approximately 5 boxes per square foot of floor space when stacked. 5. Select additional items if you have anything else: a few small items (bikes, sports equipment) add 10 sq ft, while several large items (sofas, dining tables) add 30 sq ft. 6. View the recommended unit size, dimensions, and estimated monthly cost. The calculator always rounds up to the next standard unit size to ensure everything fits comfortably.
The storage size calculation adds up space requirements for each category: Bedroom contents: 25 sq ft per bedroom Boxes: 1 sq ft per 5 boxes (stacked) Large appliances: 25 sq ft (if applicable) Garden furniture: 15 sq ft (if applicable) Additional items: none = 0, few small = 10 sq ft, several large = 30 sq ft Total needed = sum of all categories The total is then matched to standard unit sizes: 25 sq ft (5x5), 50 sq ft (5x10), 75 sq ft (5x15), 100 sq ft (10x10), or 150 sq ft (10x15). For example, storing 2 bedrooms of furniture with appliances and 20 boxes: bedrooms = 50 sq ft, appliances = 25 sq ft, boxes = 4 sq ft. Total = 79 sq ft. Recommended unit: 100 sq ft (10x10) at approximately GBP 170/month. Monthly cost estimates are UK averages. London and South East prices are typically 30-50% higher, while northern regions are 10-20% lower.
When choosing a storage facility in the UK, check that it is a member of the Self Storage Association UK (SSA UK), which requires minimum security and insurance standards. Most facilities offer their own insurance, but check whether your home contents insurance covers items in storage -- many policies do up to a certain value. Always visit the facility in person before committing, and check for dampness, pest control measures, and adequate lighting.