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Storage size guide

Storage Unit Size Guide

Not sure which storage unit size you need? This guide walks through every size at Smart Box Storage, from 15 sq ft lockers to 500 sq ft units, and explains what each one holds and who it suits. All units are air-conditioned and rented month to month.

Storage Unit Sizes Explained

Our units are grouped from X-Small lockers to X-Large business space. Each group below explains what the size feels like, what fits and who it suits, followed by every unit size in that group and what it typically holds.

X-Small Units

About the size of a large wardrobe

Lockers for things you want out of the way but kept safe: suitcases, boxes, documents, seasonal clothing, sports gear or a bicycle. A good fit for students, people living in a studio, or anyone clearing out a cupboard at home.

  • 15 sq ft

    1.39 m²

    Locker

    Typically holds: Suitcases and boxes

  • 20 sq ft

    1.86 m²

    Locker

    Typically holds: Studio overflow

Small Units

About the size of a walk-in closet

Walk-in units for the contents of a studio, a large studio or a one-bedroom apartment: a bed, sofa, small table, wardrobe and boxes. Also suits a small business keeping stock or archive boxes.

  • 30 sq ft

    2.79 m²

    Typically holds: Studio contents

  • 40 sq ft

    3.72 m²

    Typically holds: Large studio

  • 50 sq ft

    4.65 m²

    Typically holds: One-bedroom apartment

Medium Units

About the size of a small bedroom (100 sq ft is 10 × 10 ft)

For two- and three-bedroom apartments: full bedroom and living room furniture, appliances such as a fridge and washing machine, and boxes. Pick a larger size in this group if garage or garden items are coming too.

  • 75 sq ft

    6.97 m²

    Typically holds: Two-bedroom apartment

  • 80 sq ft

    7.43 m²

    Typically holds: Two-bedroom apartment with appliances

  • 100 sq ft

    9.29 m²

    Typically holds: Three-bedroom apartment

  • 110 sq ft

    10.22 m²

    Typically holds: Three-bedroom apartment with appliances

  • 120 sq ft

    11.15 m²

    Typically holds: Three-bedroom home with garage items

Large Units

About the size of a single-car garage and up

For villa moves, renovations and office relocations: bedroom sets, dining tables, appliances, outdoor furniture and many boxes, with room to leave a walkway so you can reach the items at the back.

  • 150 sq ft

    13.94 m²

    Typically holds: Four-bedroom villa

  • 200 sq ft

    18.58 m²

    Typically holds: Large four-bedroom villa

  • 250 sq ft

    23.23 m²

    Typically holds: Five-bedroom villa

  • 300 sq ft

    27.87 m²

    Typically holds: Office relocation

X-Large Units

Warehouse-style space

For businesses and very large homes: retail and e-commerce stock, business inventory, office furniture and equipment, or the full contents of a large villa.

  • 350 sq ft

    32.52 m²

    Typically holds: Retail stock

  • 400 sq ft

    37.16 m²

    Typically holds: Warehouse-style storage

  • 500 sq ft

    46.45 m²

    Typically holds: Business inventory

Tips for Choosing a Size

  • Dismantle beds, tables and wardrobes; they take far less space flat.

  • Use boxes of the same size so they stack safely to the ceiling.

  • Leave a walkway if you’ll need to reach items at the back.

  • Count appliances separately: a fridge and washing machine add about 10 sq ft.

  • Still unsure? Send us photos on WhatsApp and we’ll recommend a size for free.