Choosing the Right Type of Network Cable for Your Business
A reliable network is critical to the day-to-day running of any commercial space. From cloud storage and point-of-sale systems to VoIP phone calls and wireless access points, data cabling supports many of the tools your business depends on.
When planning an office fit-out or investigating poor connectivity, it’s easy to overlook the quality and configuration of the network cabling behind the walls, or above the ceiling. But choosing the wrong cable type, running cables incorrectly, or installing insufficient data and wireless access points can lead to frustrating dropouts, slow speeds, and costly upgrades later.
In this guide, we’ll walk through the different types of network cables used in commercial environments and help you choose the most suitable option for your office, warehouse, or facility.
Key Takeaway
There are several types of network cables suited to different commercial environments. Cat5e suits minimal demands, while Cat6 and Cat6a are ideal for most office and warehouse setups. For high-speed or high-volume data needs, Cat7 and fibre optic cables offer increased reliability. The right cable choice affects performance, compatibility, and future-proofing. Using a licensed electrician ensures compliance, safety, and quality installation from the start.
Why Your Cable Choice Matters
It’s tempting to go with the cheapest cable or a “near enough” setup, especially during an office fit-out. But when it comes to commercial-grade networks, cutting corners with your cabling leads to limitations that aren’t always easy to fix later.
Speed and Reliability
The right data cable allows your team access the full speed of your NBN plan, keep cloud-based applications stable, and support uninterrupted video conferencing and phone calls.
Future-Proofing
Installing higher-grade cables now (like Cat6a) means your infrastructure can handle new technology and business growth without needing a full upgrade down the track.
Support for Modern Systems
Today’s business environments rely heavily on Power over Ethernet (PoE) devices like security cameras, card access readers, and wireless access points. These devices require the right cabling to work safely and effectively.
Common Types of Network Cables
There are several Ethernet cable categories used in commercial installations. Each type has different capabilities in terms of data speed, interference resistance, and cost.
Cat5e
Still found in older buildings, Cat5e supports speeds up to 1 Gbps. It lacks the shielding needed for modern commercial environments and should be avoided in new installations. If you’re experiencing low Wi-Fi or patchy network speeds, outdated Cat5e cabling may be to blame.
Cat6
The current baseline for most modern offices. Cat6 supports 1 Gbps over 100m and 10 Gbps for shorter runs (under 55m). It also offers improved shielding against interference, making it a reliable and cost-effective choice for general business use.
Cat6a
Designed to handle 10 Gbps speeds over the full 100 metres, Cat6a is better shielded and suited to larger spaces or higher demand setups. It’s ideal for running ethernet in ceilings or roof spaces to feed wireless access points in hard-to-reach areas like warehouse rafters or open-plan offices.
Cat7
Provides very high speeds and excellent shielding, but uses connectors that aren’t compatible with most business hardware. Typically overkill for everyday commercial use in Perth, unless your business operates in highly specialised or sensitive environments.
Fibre Optic
Fibre uses light instead of electricity to transmit data, allowing it to run long distances without interference. In commercial settings, fibre is typically used to connect server rooms or multiple buildings rather than individual desks.
Matching Cable Types to Business Needs
Knowing the specs is only part of the picture. What matters most is how well your setup supports the demands of your space.
For Small to Mid-Sized Offices
Cat6 is usually more than sufficient. It handles cloud apps, VoIP calls, and basic file sharing with ease. Installed with sufficient data points and ceiling-mounted ethernet feeds to wireless access points, it provides a smooth, stable user experience.
For Large Offices and Warehouses
Cat6a is strongly recommended. It performs better over long distances and offers better shielding in electrically noisy environments. It’s also ideal for cabling through ceiling voids or warehouse structures where long cable runs are needed.
For Data-Heavy or High-Tech Setups
Any business that transfers large files (video, design, or medical imaging) or relies on the latest high-power PoE devices or needs higher data volumes should invest in Cat6a to ensure performance.
Don’t Overlook These Essentials
When it comes to commercial network cabling, these often-overlooked elements can make or break your system.
Data Access Points
Installing too few access points is a common mistake. Every team member and device needs a reliable connection. Structured cabling should be planned for flexibility, with spare capacity for future devices.
Wireless Access Points (WAPs)
Poor Wi-Fi often stems from poorly placed or underpowered WAPs. Hardwiring ethernet cables into the roof space to feed ceiling-mounted access points ensures stronger and more consistent wireless coverage, especially in large open areas.
Roof Cabling
Running network cables in the roof can save space and simplify the layout, but only if done correctly. Licensed electricians ensure cables are run safely, supported adequately, and free from potential electrical interference.
Common Cabling Mistakes Business Owners Make
Underestimating Growth
It’s cheaper to install higher-grade data cabling during your initial fit-out than to retrofit later. Plan for expansion now to avoid rework later.
Unlicensed Installers
Data cabling in Australia must be installed by someone with ACMA registration. DIY or handyman jobs are not only illegal but often lead to signal loss, overheating, or non-compliant systems.
Neglecting the Data Rack
A well-organised, labelled data rack makes troubleshooting easy and reduces downtime. Poorly managed racks lead to confusion and unreliable connections.
Why It Pays to Use Licensed Professionals
Commercial data cabling is regulated work. It requires experience, knowledge of electrical safety, and a clear understanding of how different systems interact and how they work together.
At PWA Electrical Services, we install network cabling across offices, warehouses, and commercial facilities throughout Perth. Our licensed electricians design each installation to reliably connect your computers, routers, and other critical systems, supporting your needs now and in the future.
We provide reliable, organised, and standards-compliant installations. Whether it’s part of a new fit-out or a system upgrade, our approach ensures your network operates with minimal disruption and maximum efficiency.
Start Your Commercial Fit-Out with the Right Network
Your network cabling is the backbone of your business’s digital operations. Choosing the right cable, and the right team, sets you up for stable, secure, and scalable performance.
At PWA Electrical Services, we install commercial-grade data networks throughout Perth and surrounding areas. From roof-mounted ethernet cabling to ceiling access points and full switchboard integration, we handle it all with care, compliance, and decades of experience.
Get in touch today to discuss your network installation.
Your NBN connection (FTTP, HFC, FTTN) terminates at a single point (your modem). The cabling after your modem is what distributes that connection. Using Cat6 or Cat6a ensures that every computer in your office can access the full speed your NBN plan provides.
For basic VoIP phones, Cat6 is great. High-power devices, like 4K security cameras or modern Wi-Fi 6 access points, require Cat6a to ensure stable power and prevent overheating.
Yes. Any individual installing, moving, or adding to a permanent data cable must hold an ACMA cabling registration. DIY installations can void your insurance and are not legally compliant.
Yes, but your network will only run as fast as its weakest link. If you connect a Cat6a server to a Cat5e wall socket, the Cat5e socket will limit the connection to Cat5e performance.