Comprehensive Guide to Selecting the Right Server Rack for Your Business

Buying a Server Rack in South Africa: The Complete Guide by Server Warehouse

When investing in IT infrastructure, choosing the right server rack is one of the most important decisions you’ll make. A well-selected rack will protect your equipment, improve organisation, manage airflow, and leave room for future growth.

At Server Warehouse, we supply a wide range of Linkbasic and Cattex server cabinets, offering solutions for home offices, small businesses, and large data centres across South Africa.

This guide explains exactly what to look for when planning your server rack purchase.

1. Start with a Clear Plan

Before you start browsing, answer these questions:

What equipment will you store? (Servers, switches, patch panels, UPS, storage devices, etc.)
How many units do you have now?
What’s your growth plan for the next 2–5 years?
Where will the rack be located? (Server room, office corner, warehouse, or wall-mounted space)
How important are security and noise control?

A clear plan avoids costly mistakes such as buying a rack that’s too small or lacking ventilation.

2. Measure Your Space and Equipment

Server racks are measured in rack units (U) — 1U = 44.45mm in height.

Add up the U height of all your equipment.
Allow 10–20% extra U space for future expansion.
Measure equipment width (most are 19-inch standard) and depth (some modern servers are extra-deep).
Decide between:
- Floor-standing racks – best for larger setups and expansion.
- Wall-mounted racks – ideal for smaller networks or limited space.

3. Select the Right Width and Depth

Width:
- 600 mm – standard setups.
- 800 mm – extra cable management space.
Depth:
- Standard depths range from 600 mm to 1200 mm.
- Always allow clearance for cables and airflow behind equipment.

4. Plan for Cooling and Ventilation

Heat is the enemy of electronic equipment. Your rack should:

Have perforated doors or side panels for passive airflow.
Include fan kits for active cooling in high-density installations.
Allow enough space between equipment for air circulation.
Optionally integrate temperature monitoring.

5. Security Matters

If your rack will be in a shared space:

Choose lockable front and rear doors.
Opt for side panels with locks for extra security.
Consider glass or perforated doors depending on visibility needs.

6. Cable Management is Key

A tidy rack is easier to maintain and less prone to overheating. Look for:

Vertical and horizontal cable organisers.
Brush panels for cable entry points.
Extra side space for routing cables neatly.

7. Weight Capacity and Build Quality

Check the total weight of your equipment and match it to the rack’s load rating.
Ensure compliance with EIA-310 standards for 19-inch equipment.
Look for ISO-certified manufacturing quality.

8. Choose Your Brand

At Server Warehouse, we offer:

Linkbasic Server Cabinets

Reliable, cost-effective.
Available in multiple sizes from wall-mount 6U to 47U floor-standing.
Features like built-in fans, adjustable rails, and numbered U markings.

Cattex Server Cabinets

Locally manufactured in South Africa.
Known for robust construction and custom options.
Perforated or glass doors, high load capacity, and excellent finish.

9. Allow for Mobility and Stability

Castor wheels for moving during installation or maintenance.
Leveling feet to keep the rack stable once positioned.
Seismic-rated options for high-risk areas.

10. Work with a Trusted Supplier

Choosing the right rack is easier when you have expert advice. At Server Warehouse, we:

Help you plan your rack configuration.
Recommend the right size and brand.
Offer nationwide delivery across South Africa.
Provide ongoing support for your infrastructure needs.

Final Checklist Before Buying

✔ Do you know your total equipment height in U?
✔ Have you allowed for future expansion?
✔ Is your space measured for height, width, and depth?
✔ Does your rack provide enough ventilation?
✔ Are security and cable management included?
✔ Is the build quality certified?

FAQ

What is a server rack and why do I need one?

A server rack is a metal cabinet or open frame designed to hold IT equipment like servers, switches, patch panels, and UPS systems in an organised, secure, and ventilated space. It improves airflow, simplifies cable management, and protects your investment.

How do I choose the right size server rack?

Measure your equipment’s height in rack units (U), width, and depth. Add at least 10–20% extra space for future growth. Consider the available floor or wall space in your server room.

What is the difference between a 600mm and 800mm wide rack?

A 600mm wide rack is standard for most setups, while an 800mm wide rack provides extra side space for cable management and airflow.

Do server racks need ventilation?

Yes. Proper ventilation prevents overheating and extends the life of your equipment. Look for perforated doors, side vents, or fan kits for active cooling.

Which brands of server racks are best in South Africa?

Linkbasic racks are affordable and widely used, offering multiple size and cooling options. Cattex racks are locally manufactured, highly durable, and available in both perforated and glass door designs.

Does Server Warehouse deliver nationwide?

Yes. Server Warehouse delivers Linkbasic and Cattex server racks across South Africa, with fast, reliable shipping.