Metallic cable trunking sizes

Metallic Cable trunking is a fundamental component of electrical and data cable management, comes in various sizes to meet the diverse needs of different projects. Understanding these sizes is essential to ensure that your cables are organized, protected, and well-maintained. In this article, we will explore several common metallic cable trunking sizes, namely 50×50, 50×100, 50×150, and 100×200, and help you decide which one is best suited for your specific application.

KSh2,800.00 Ex.VAT
KSh5,050.00 Ex.VAT

Metallic Cable Trunking

Twin and Single Knockouts 200mm

KSh340.00 Ex.VAT
KSh4,050.00 Ex.VAT
KSh1,250.00 Ex.VAT
KSh1,800.00 Ex.VAT
KSh1,150.00 Ex.VAT
KSh4,900.00 Ex.VAT
KSh3,400.00 Ex.VAT
KSh2,380.00 Ex.VAT

Metallic Cable Trunking

Metallic Cable Pedestals

KSh3,600.00 Ex.VAT
KSh1,400.00 Ex.VAT
KSh1,650.00 Ex.VAT
KSh1,250.00 Ex.VAT
KSh1,450.00 Ex.VAT
KSh800.00 Ex.VAT

Metallic Cable Trunking

Twin and Single Knockouts 100mm

KSh280.00 Ex.VAT

Metallic Cable Trunking

Twin and Single Knockouts 250mm

KSh370.00 Ex.VAT
KSh1,350.00 Ex.VAT
KSh2,300.00 Ex.VAT

The Importance of Metallic cable trunking sizes 

Selecting the appropriate size of metallic cable trunking is crucial for several reasons:

  1. Capacity: The primary purpose of cable trunking is to provide a safe and organized space for cables. The trunking’s size must be adequate to accommodate the number and diameter of cables intended for installation. Overcrowded trunking can lead to overheating, signal interference, and safety hazards.
  2. Accessibility: The size of the trunking influences how easy it is to access and maintain the cables within. Larger trunking sizes offer more working space and accessibility, simplifying cable installation and maintenance.
  3. Aesthetics: The size of the cable trunking can impact the overall look of an installation. In some cases, sleek and inconspicuous smaller trunking may be preferred to maintain a clean and unobtrusive appearance.
  4. Compliance: Electrical codes and standards often dictate the minimum and maximum size of cable trunking that can be used for specific applications. Compliance with these regulations is essential to ensure safety and prevent legal issues.


Standard Metallic Cable Trunking Sizes

Metallic cable trunking is available in a range of standard sizes, typically designated by their width and height. Common sizes include:

  1. 50mm x 50mm: This smaller size is ideal for residential applications and can accommodate a limited number of cables, making it suitable for low-density cable installations.
  2. 100mm x 50mm: A slightly larger size, this is often used in small to medium-sized commercial settings and can handle a moderate amount of cables.
  3. 100mm x 100mm: A versatile size that strikes a balance between capacity and aesthetics. It’s suitable for various applications, including offices, retail spaces, and industrial environments.
  4. 150mm x 100mm: Larger trunking like this is typically found in industrial settings where a high cable capacity is necessary. It provides ample space for a significant number of cables and is built for heavy-duty use.
  5. 200mm x 100mm: This substantial trunking size is reserved for extensive cable installations, such as data centers and large industrial facilities.


 Applications of metallic cable trunking sizes

The choice of metallic cable trunking size can vary based on the specific application. Here are some common applications and the recommended trunking sizes:

  • Commercial Buildings: In commercial installations, where a substantial number of cables are used for lighting, power, and data, larger trunking sizes like 150mm x 150mm or 200mm x 200mm are often preferred.
  • Industrial Facilities: Industrial environments typically require heavy-duty cable management solutions. Trunking sizes such as 200mm x 200mm or 300mm x 300mm are commonly used in these settings.
  • Residential Installations: Residential applications usually involve fewer cables. Smaller trunking sizes, like 50mm x 50mm or 75mm x 75mm, are often sufficient for routing power and data cables.
  • Telecommunication Centers: Telecommunication installations often require cable management for numerous data and communication cables. A trunking size of 150mm x 150mm or larger may be necessary in these cases.


Selecting the right size of metallic cable trunking is a critical decision when planning an electrical installation. The correct size ensures efficient cable management, compliance with regulations, and room for future expansion. By considering factors such as the number of cables, cable diameter, and the specific application, you can make an informed decision on which trunking size to choose. Remember that safety and compliance should always be top priorities when working with electrical systems, and the correct choice of cable trunking size plays a vital role in achieving these goals.