Business self storage is a month-by-month rental of a secure, drive-up unit for holding stock, tools, equipment, documents, or furniture. It suits sole traders, SMEs, and growing businesses that need more space without the long-term commitment of a commercial lease. No deposit, no minimum stay — you rent the space you need, for as long as you need it.
Business Self Storage
What is business self storage and what can you store?
A business self storage unit is a private, lockable space rented on a rolling monthly basis. Units range from around 16 sq ft — roughly the size of a large wardrobe — to 300 sq ft and beyond, so your space can scale as your business does.
Most businesses store one or more of the following:
- Stock and product inventory
- Tools, machinery, and specialist equipment
- Document archives and company records
- Office furniture and IT equipment
- Promotional materials and display stands
- Packaging materials and consumables
- Seasonal items — event kit, outdoor furniture, uniform stock
There are restrictions. You cannot store flammable substances, perishable goods, live animals, or anything illegal. If you are unsure whether a particular item is permitted, check the Smartbox storage agreement terms before you book.
How does self storage compare to renting a commercial unit or warehouse?
Self storage is not always the right answer — but for most small and medium businesses, it is considerably more practical than a commercial lease. Here is how the two options compare:
Which types of business use self storage — and how?
Self storage suits a wider range of businesses than most people expect. The common thread is the need for accessible, secure space without the overhead of a fixed commercial property.
Trades and contractors
Plumbers, tree surgeons, landscapers, pavers, and other trade businesses typically store tools, machinery, safety equipment, and materials between jobs. A drive-up unit means loading and unloading directly from a van — no trolleys, no lifts, no corridors. Round-the-clock access means early starts are never a problem.
Radon Protection UK, who store at Smartbox Self Storage Desborough, put it plainly: "We now have a secure, well-organised facility that ensures our radon protection materials are stored safely and can be accessed easily whenever needed. The flexibility and security of Smartbox have helped us work more efficiently while keeping our stock protected." - Radon Protection UK Case Study→
Best for: high-value tools and equipment, weatherproofed storage, businesses that need access outside standard hours.
Not suitable for: businesses storing hazardous materials or requiring temperature-controlled pharmaceutical storage.
E-commerce and stock holders
Online retailers, small product businesses, and distributors use self storage to hold inventory without committing to warehouse space. Units can be fitted with your own freestanding shelving, and you can add or remove stock at any time. As order volumes grow, moving to a larger unit requires no renegotiation and no solicitors.
"Smartbox has made stock management so much easier. The flexibility, security and proximity of the unit mean we can keep our shop organised and our product range strong. It's become an essential part of how we run the business."
Best for: product-based businesses with fluctuating stock levels, seasonal peaks, or businesses moving from home-based to commercial operations.
Not suitable for: businesses requiring integrated warehouse management systems, loading bays, or on-site pallet-handling equipment.
Professional services and document storage
Property managers, financial services firms, solicitors, and healthcare businesses often archive documents in self storage. HMRC generally requires businesses to retain financial records for six years; self storage provides a secure, accessible off-site location that keeps paper out of your main office without losing it entirely.
Bosphorus Card Services, a smart card solutions business storing at Smartbox Self Storage Oundle, found that moving to a dedicated unit strengthened their security and improved day-to-day operational efficiency. Read the Bosphorus Card Services case study →
Best for: document archiving, client property management, businesses with a legal obligation to retain physical records.
Not suitable for: businesses that need to retrieve documents at short notice without being able to visit the unit in person.
Charities and social enterprises
Smartbox has supported local charities and community organisations — including Athena Activities at the Corby site and Boromi, an early childhood development enterprise — with secure, accessible storage for donated goods, programme materials, and equipment. Flexible monthly contracts make it practical to hold space for a specific campaign or season without a long-term financial commitment.
Best for: seasonal programmes, donation drives, equipment-heavy community activities.
Not suitable for: organisations that need on-site staff or a public-facing premises.
What size unit does a business actually need?
The right unit size depends on what you are storing and how regularly you need to access it. A few practical benchmarks:
- 25–35 sq ft — holds a transit van's worth: tools, equipment bags, safety gear, and a couple of shelving units.
- 50 sq ft — fits a pallet of packaged stock with room to move around it, or a full set of office furniture from a small room.
- 100 sq ft — suits a growing e-commerce business storing multiple product lines, or a larger trade business with several sets of equipment.
- 150 sq ft and above — used by businesses storing vehicles, staging furniture between properties, or larger volumes of inventory.
Use the Smartbox size calculator to get a precise estimate based on what you plan to store. If you are weighing up two sizes, it is almost always worth taking the larger one — unused space is far less costly than the disruption of moving units mid-contract.
Is business storage tax-deductible?
In most cases, yes. Business self storage rental costs are generally claimable as an allowable business expense under HMRC rules, which means you can offset them against your taxable profits and reduce your Corporation Tax or Income Tax liability.
Monthly invoices from Smartbox make record-keeping straightforward — one line item, clearly itemised, every month. That supports clean accounts and gives your accountant exactly what they need at year end.
Tax rules vary depending on your business structure, trading status, and individual circumstances. Speak to your accountant to confirm how this applies to your business before treating it as a given.
What should you look for in a business storage facility?
Not all storage facilities are equal. Before committing to any provider, check for these six things.
24/7 drive-up access. If you are a trades business or a retailer with unpredictable hours, access limited to business hours will cost you time. Drive-up access — where you pull up directly to your unit without navigating corridors or lifts — matters most when you are loading or unloading heavy items regularly.
PIN-controlled or smartphone gated entry. Entry and exit times should be individually tracked and logged. A facility without controlled gate access is not appropriate for business use. Note: the Leicester site uses individual smartphone locks rather than a shared PIN gate — check the access method at your preferred location.
CCTV that records continuously. Check the system is monitored and recorded around the clock — not just motion-triggered during certain hours. At Smartbox, HikVision cameras with 4 MP resolution and infra-red night vision record 24/7 across all sites.
SSA UK membership. The Self Storage Association UK sets binding security, safety, and compliance standards for its members. Membership is a meaningful baseline — non-members are not required to meet those standards. Smartbox is an SSA member.
Flexible contracts with no long-term tie-in. A rolling monthly agreement with one month's notice is the standard to look for. Any contract that locks you in for six months or more without a clear exit route creates unnecessary risk for a growing business.
No deposit. Some providers require a deposit equivalent to several months' rent. Smartbox does not require a deposit at any of its locations.
"At Smartbox Self Storage, we understand that businesses need more than just extra space — they need flexibility, reliability and a storage partner they can genuinely trust. Across all of our sites, we've built a modern storage experience designed around how businesses actually operate today, with secure access, smart technology, flexible unit options and customer support that works around them, not the other way round. Whether it's stock storage, tools, documents, ecommerce fulfilment or scaling workspace needs, our goal is simple: make storage effortless so businesses can stay focused on growth."
— Smartbox Self Storage Management Team
Find Your Nearest Smartbox Self Storage Location
Not sure which location suits you? Call the team on 01536 402116 or start a live chat — we can advise on unit sizes and availability across all six sites.
Frequently asked questions
Can I use self storage for my business without a long-term contract?
Yes. Smartbox operates rolling monthly agreements with one month's notice to leave. There is no minimum rental period and no deposit required. You can also move to a larger or smaller unit at any time as your requirements change.
What is the smallest unit available for business use?
Units start at around 16–25 sq ft — roughly the size of a large wardrobe. This is useful for document archiving, small product inventory, or overflow equipment. Use the size calculator to find the right fit before you book.
Can I fit my own shelving or racking inside a unit?
Yes. You can bring and install your own freestanding shelving in any unit. Nothing should be fixed to the walls or floor, but there are no restrictions on freestanding racking. Most businesses storing stock find a simple metal shelving system more than adequate.
Is business self storage covered by my existing insurance?
This depends on your policy. Some business insurance policies extend to goods held in storage off-site; many do not. Check with your insurer before you move valuable stock or equipment in. Smartbox can provide details of specialist storage insurance if your current policy does not cover it.
Can multiple members of my team access the same unit?
Yes. At most Smartbox locations you receive a shared PIN code for gate access. At the Leicester site, units use individual smartphone locks — team access can be managed via the app. There is no additional charge for team access at any location.
How quickly can a business get started?
In most cases, same day. Book online, receive your access details, and move in. There is no waiting period beyond completing the standard storage agreement.
Ready to find the right unit for your business? Check availability at your nearest location or call 01536 402116.
Read our entire FAQ page to learn more about what other customers have asked.