Locker Size Guide UK: Standard Dimensions & Buying Advice (2026)

Choosing the correct locker size is one of the most important decisions when planning storage for schools, gyms, workplaces or leisure facilities. Selecting the wrong dimensions can reduce corridor compliance, create overcrowding, and increase long-term costs.

This locker size guide UK buyers can rely on explains standard locker dimensions, compartment options, and how to select the right configuration for your environment in 2026.

Standard Locker Dimensions UK

What Are Standard Locker Dimensions in the UK?

Although sizes vary by manufacturer, most UK lockers follow common dimensions:

• Height: 1800 mm (most common)
• Width: 300 mm, 380 mm, or 450 mm
• Depth: 300 mm, 450 mm, or 600 mm

These dimensions suit most education, workplace and leisure environments.

Single vs Multi-Compartment Lockers

Single vs Multi-Compartment Locker Sizes

• 1 Door (Full Height): Suitable for coats and sportswear
• 2 Door: Split height for shared environments
• 3 Door: Ideal for secondary schools
• 4 Door: Compact personal storage
• 6 Door & Above: High-density storage areas

School Locker Sizes UK

School Locker Sizes UK

In education environments, common sizes include:

• 1800H x 300W x 300D mm (compact corridors)
• 1800H x 300W x 450D mm (larger bag storage)
• 3-door compartments for pupil allocation

Explore durable Steel Lockers for Schools.

Gym Locker Dimensions

Gym Locker Dimensions UK

• Full-height lockers for hanging garments
• 300 mm width for compact gym layouts
• 450 mm depth for sports bags
• Optional 600 mm depth for premium facilities

Workplace Locker Sizes

Workplace Locker Size Considerations

• PPE storage requirements
• Tool and equipment storage
• Clean & contaminated clothing separation
• Space planning compliance

Depth Matters: 300mm vs 450mm vs 600mm

Locker Depth Comparison

• 300 mm: Space-saving, suitable for books and small bags
• 450 mm: Most versatile standard depth
• 600 mm: Larger equipment and bulky storage

Corridor & Fire Safety Planning

Corridor Width & Fire Compliance

When installing lockers in corridors, fire safety regulations require maintaining minimum escape widths. Always measure available space before selecting depth.

Plastic Locker Sizes

Plastic Locker Dimensions UK

Plastic lockers generally follow similar height and width standards as steel lockers but are often chosen for wet environments.

See Plastic Lockers for swimming pools and leisure facilities.

How Many Lockers Per Square Metre?

How Many Lockers Fit Per Square Metre?

Approximate planning guidance:

• 300 mm width lockers: ~3 per metre run
• 380 mm width lockers: ~2.6 per metre run
• 450 mm width lockers: ~2.2 per metre run

Choosing the Right Locker Size UK

How to Choose the Right Locker Size

• Identify user needs
• Measure available space
• Confirm fire compliance
• Allow for future growth
• Choose appropriate locking system

Frequently Asked Questions

Frequently Asked Questions

What is the most common locker size in the UK?
1800H x 300W x 450D mm is widely used across schools and workplaces.

Are deeper lockers better?
Only if required. Larger depths reduce corridor clearance.