December 22, 2025
Cable Tray – Types, Sizes, and Complete Guide (Pakistan 2025)
Cable trays are essential components of modern electrical installations, used to support, manage, and protect cables in industrial, commercial, and residential sectors. This complete guide explains cable tray types, sizes, materials, applications, installation practices, and selection criteria—fully optimized for Pakistan’s electrical standards.
What Is a Cable Tray?
A cable tray is a structural system used to safely support and route electrical cables, communication wires, and power distribution lines. Cable trays provide mechanical protection, organized routing, and easy maintenance.
Why Cable Trays Are Important in Electrical Installations?
Prevent cable damage
Improve heat dissipation
Ensure safe cable routing
Reduce installation time
Allow future expansion
Provide organized cable management
Cable Tray Types (Complete Classification)
Below are the most commonly used electrical cable tray types in Pakistan.
Perforated Cable Tray
A perforated cable tray is manufactured from mild steel or galvanized steel and features evenly spaced holes across the bottom and side rails. These holes improve ventilation, reduce cable heat buildup, and allow easy drainage in moisture-prone areas.
Benefits
Industrial electrical wiring Power distribution inside factories Commercial buildings Suspended ceiling systems
Uses
Prevents overheating of wires Easy cable tie-down points Cost-effective & durable Can be paired with covers for dust protection
Solid Bottom Cable Tray (Maximum Cable Protection)
A solid bottom cable tray has a complete metal sheet base with no ventilation holes. This protects cables from dust, moisture, and external physical contact.
Advantages
Prevents dust contamination Shields cables from physical damage Ideal for clean environments
Ladder Cable Tray (Heavy-Duty & Long Span Support)
A ladder cable tray is built using two side rails connected by horizontal rungs. This structure provides strong mechanical support and maximum air circulation.
Strength & Properties
Highest load-bearing capacity among all cable trays Ideal for long cable routes Best ventilation prevents insulation damage Reduces cable stress on bends
Best for
High-voltage power cables Outdoor cable routing Industrial plants & refineries Generator and transformer connections
Manufacturing & Fabrication
Production of standard and customized trays, cable supports, and accessories.
Advantages
No heat accumulation Superior structural strength Perfect for thick armoured cables Low maintenance
Wire Mesh Cable Tray (Basket Tray for IT & Low-Voltage Cables)
Made from welded steel wires shaped into a basket, wire mesh trays offer exceptional flexibility and lightweight installation.
Strength & Properties
Sleek & modern design Easy to cut, bend, and shape onsite Excellent airflow for sensitive equipment
Channel Cable Tray (C-Type or U-Type Tray)
Channel cable trays are made in a “U” or “C” shape, ideal for low-volume cable runs and short distances.
Strength & Properties
Slim profile
Cost-effective
Ideal for areas with limited space
Best for:
Residential buildings
Small offices
Control cables & signal wires
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Need more help?
Need help? Our team is here to assist you with cable tray selection, pricing, customization, and technical support.
0300-9444-973
0300-9444-907
Cable Tray Sizes in Pakistan (Standard Dimensions)
Cable tray sizes vary depending on cable load and project requirements.
Standard Widths
50 mm
100 mm
150 mm
200 mm
300 mm
450 mm
600 mm
900 mm
Standard Heights
25 mm
50 mm
75 mm
100 mm
Standard Lengths
8 ft (Most common in Pakistan)
10 ft
12 ft
Cable Tray Materials
Cable trays are manufactured using several materials based on application.
1. Mild Steel (MS) Cable Trays
Economical
Strong load capacity
2. Galvanized Steel Cable Trays (GI)
Rust-resistant
Long lifespan
Ideal for outdoor use
3. Stainless Steel Cable Trays
Best corrosion resistance
Used in chemical, food, pharmaceutical industries
Aluminum Cable Trays
Lightweight
Good heat dissipation
Cable Tray Accessories (Complete List)
Proper installation requires matching accessories.
Common Accessories
Cable tray bends (Horizontal & Vertical)
Reducers
Tee joints
Cross junctions
Couplers
Clamps & Hangers
Fasteners
Covers
Cable Tray Load Capacity (Light, Medium, Heavy)
1. Light-Duty Cable Trays
Used for control cables & data lines.
2. Medium-Duty Cable Trays
Used for mixed wiring systems.
3. Heavy-Duty Cable Trays
Used for industrial power cables with long spans.
How to Select the Right Cable Tray? (Engineer Checklist)
Follow these steps to choose the correct tray:
Checklist
Cable size & quantity
Load weight
Installation environment (indoor/outdoor)
Corrosion level (humidity, chemicals)
Required lifespan
Budget
Material selection
Safety requirements
Cable Tray Installation Guide (Step-by-Step)
Step 1: Plan Cable Routing
Mark all points where cable trays will be installed.
Step 2: Install Support System
Use wall brackets, ceiling hangers, threaded rods, or supports.H3: Step 3: Fix Cable Trays
Join trays using couplers, bolts, and clamps.
Step 4: Lay Cables
Place cables without overloading the tray.
Step 5: Apply Covers (if needed)
Use covers in dusty or outdoor conditions.
Applications of Cable Trays in Pakistan
Factories & industrial plants
Solar power projects
High-rise buildings
Shopping malls
Data centers
Hospitals
Power distribution rooms
Cable trays play a crucial role in electrical projects by providing strong, organized, and safe cable support. By understanding cable tray types, sizes, materials, installation methods, and applications, you can choose the right system for your industrial or commercial project in Pakistan.
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