Understanding common filing cabinet sizes
Before you choose a cabinet, it helps to know the typical sizes and what they’re designed to hold. That way you can match your storage to the way you actually work.
In most Australian offices you’ll see vertical and lateral cabinets. Vertical models are taller and deeper, with drawers that pull out towards you; they’re ideal when you have more ceiling height than floor space. Lateral cabinets are wider and shallower, so they sit neatly along a wall and give you easier visibility across folders. Both are available in two, three and four-drawer options, and some ranges add extra heights for high-volume records rooms.
Standard drawers are built around A4 or foolscap suspension files, but pay close attention to internal dimensions, not just the outside footprint. If you’re already using foolscap files, you’ll generally need deeper drawers than for A4-only storage. It’s also worth considering complementary storage like lockable Office Cupboards or Stationery Cupboards for items that don’t sit well in hanging files, such as lever arch folders, archive boxes or bulk office supplies.
For smaller workstations and home offices, a full-height cabinet may be excessive. In these cases, mobile Pedestal Drawer Units that tuck under the desk can be enough for active files, especially when paired with nearby Small Storage & Organisers for stationery and personal items. Matching your cabinet type to your workspace layout is the first step to getting the capacity right.
Calculating how much storage space you actually need
Capacity depends on more than how many drawers you buy. You also need to think about file thickness, growth and access.
A simple way to estimate your needs is to measure how many centimetres of paperwork you currently have on shelves or in a box, then add a growth factor. As a guide, one metre of shelf space typically equates to roughly two to three full cabinet drawers, depending on how tightly you pack suspension files. If your business is still largely paper-based, allow at least 30–50% extra room for the next couple of years so you don’t run out of space too quickly.
Not every document needs to live in a drawer at all times. High-use files that staff access daily should sit in easily reachable drawers, while low-use archives can move to high-density solutions like Compactus units or bulk Office Shelving in a storage room. This layered approach keeps essential paperwork close at hand while avoiding oversized cabinets crowding individual desks.
Consider how many people will share the same cabinet and how they work. A team that regularly handles client files at the same time may benefit from several smaller cabinets spread around the office, rather than one oversized unit that everyone queues for. Blending traditional Filing Cabinets with open shelving and cupboards can help distribute storage more evenly and improve efficiency.
Matching cabinet size to your workspace layout
Your floor plan often decides the right cabinet more than your file count does. Measure carefully before you commit.
Vertical units suit tight footprints where you can build upwards without blocking windows or air conditioning vents. However, you need enough clearance in front of the drawers so people can open them fully and stand comfortably while searching for files. Lateral cabinets, on the other hand, spread weight and storage along a wall and can double as additional bench space for printers or office equipment, which is useful in compact workrooms.
If you’re working with narrow corridors or shared walkways, consider alternatives like Sliding Door Cabinets or Tambour Cupboards, which don’t need swing space for doors. These can provide a mix of filing and general storage without intruding into walkways, keeping you compliant with safety and access requirements. In open-plan offices, low-height cabinets can also be used to create subtle zones between teams without closing off natural light.
Home offices present their own challenges, as you often share space with living areas. Here, a smaller, lockable cabinet paired with an Office Cupboards solution or discreet Small Storage & Organisers can keep sensitive paperwork secure without dominating the room. The key is to balance capacity with circulation space so your workspace remains comfortable and clutter-free.
Choosing drawers, accessories and complementary storage
Drawer configuration has a big impact on usability. Think about what you store besides standard suspension files.
If you mostly file thin client folders, deeper drawers might go to waste. In that case, consider a cabinet with more, shallower drawers or mix in under-desk Pedestal Drawer Units for stationery, notebooks and personal items. Dividers, file racks and clear labels will help you maximise internal space and avoid overfilling any single drawer, which can strain runners over time.
Not everything belongs in traditional filing drawers. Bulky items, archives and equipment are usually better housed in dedicated Office Cupboards or lockable Stationery Cupboards. Open Office Shelving is ideal for clearly visible reference material, catalogues and manuals that people grab frequently. By moving non-file items out of the filing cabinet, you often find you can step down a size and still have more than enough room.
In larger workplaces, centralised storage can reduce the need for big cabinets at every workstation. High-capacity systems such as Compactus units, tambour door credenzas and Sliding Door Cabinets allow you to keep critical files in a shared zone. Individual staff then rely on smaller Filing Cabinets, mobile pedestals and Small Storage & Organisers for day-to-day paperwork and desk items, keeping work areas streamlined.
Planning for security, growth and a more paper-light future
Cabinets need to serve you well beyond this year’s paperwork. Think about security and how your paper use may change.
If you’re storing HR records, financial documents or client contracts, lockable drawers are essential. Many quality Filing Cabinets and Tambour Cupboards come with master key systems so you can manage access easily. For shared spaces, having separate lockable sections within larger Office Cupboards or Sliding Door Cabinets can help different teams keep sensitive information secure without needing extra furniture.
Many Australian businesses are steadily moving towards digital records, which changes how much space you’ll need over time. Instead of buying the largest cabinet you can fit, it may be smarter to choose a medium-sized solution that suits your current files and complement it with scalable storage like Compactus units or modular Office Shelving for archives. As more documents move online, you can re-purpose cupboards for equipment, marketing materials or general office supplies.
Finally, don’t overlook everyday usability. Label drawers clearly, keep only active files close to desks and use Small Storage & Organisers and Pedestal Drawer Units to prevent filing space being taken over by loose items. With the right mix of cabinets, cupboards and shelving, you can choose a cabinet size that fits your current workload while staying flexible for whatever your business needs next.
