50/250 Industrial Panel Dimensions, Rib Spacing, Gauge Range, and Span Tables
50/250 Industrial Panel Dimensions, Rib Spacing and Span Tables
The 50/250 Industrial Panel is a heavy structural trapezoidal metal roofing and wall cladding profile designed for large-span industrial buildings. The deep rib geometry provides exceptional structural strength, allowing the panel to support heavy loads and span long distances between structural supports.
The designation 50/250 typically refers to:
• 50 mm rib height
• 250 mm rib pitch (center-to-center spacing)
This configuration produces a highly rigid roofing sheet suitable for demanding industrial environments.
50/250 industrial panels are commonly used in:
• large warehouses
• industrial factories
• logistics and distribution centers
• power plants
• aircraft hangars
• steel structure buildings
These panels are produced using heavy-duty roll forming machines that shape steel coil into trapezoidal ribs through multiple forming stations. Roll forming allows panels to be produced in long custom lengths, minimizing installation joints.
This guide provides a detailed technical overview of 50/250 industrial panel dimensions, rib spacing, steel gauges, coil width requirements, and span tables used by engineers, contractors, manufacturers, and roll forming machine buyers.
What is a 50/250 Industrial Panel
A 50/250 industrial panel is a trapezoidal roofing sheet designed for structural roofing systems requiring long spans and high load capacity.
Compared with standard roofing panels, the 50/250 profile provides:
• deeper rib geometry
• wider rib spacing
• increased structural rigidity
• improved load distribution
• longer span capability
Because of these characteristics, the profile is commonly used in large industrial roofing structures.
Standard 50/250 Industrial Panel Dimensions
50/250 industrial panels contain several trapezoidal ribs distributed across the panel width.
Typical dimensions include:
Specification
Typical Measurement
Coverage Width
900 – 1000 mm
Overall Width
1000 – 1100 mm
Rib Height
50 mm
Rib Pitch
250 mm
Number of Ribs
4 – 5
Panel Length
Custom roll formed
Coverage width refers to the effective installed width of the panel.
Rib Layout and Profile Geometry
The trapezoidal rib structure provides reinforcement across the panel width and improves load capacity.
Typical rib layout characteristics include:
• deep trapezoidal ribs
• wide flat pans between ribs
• anti-capillary side lap design
Typical rib dimensions include:
Feature
Measurement
Rib height
50 mm
Rib pitch
250 mm
Rib top width
40 – 60 mm
Rib base width
150 – 200 mm
The wide rib pitch increases structural performance.
50/250 Industrial Panel Cross Section Dimensions
The cross section of the sheet consists of trapezoidal ribs separated by flat pans.
Typical cross section characteristics include:
Rib height
50 mm
Panel coverage width
900 – 1000 mm
Number of ribs
4 – 5 ribs
Side lap
1 rib overlap
The overlap ensures a watertight roofing system.
Steel Gauge Range for 50/250 Industrial Panels
50/250 industrial panels are typically manufactured using medium to heavy steel gauges.
Typical gauges include:
Gauge
Thickness
Typical Application
24 gauge
0.0239 in
Industrial roofing
22 gauge
0.0299 in
Heavy industrial buildings
20 gauge
0.0359 in
Structural roofing systems
18 gauge
0.0478 in
Long span industrial roofs
Thicker gauges increase load capacity and span capability.
50/250 Industrial Panel Span Tables
Span tables determine the maximum distance the panel can span between structural supports.
Span capability depends on:
• steel thickness
• rib height
• rib spacing
• wind loads
• snow loads
Typical span ranges include:
Gauge
Roof Span
24 gauge
6 – 8 ft
22 gauge
8 – 10 ft
20 gauge
10 – 14 ft
18 gauge
14 – 18 ft
Engineering calculations must always be performed for specific building designs.
Coil Width Requirements for 50/250 Industrial Panels
Steel coil must be slit to the correct width before entering the roll forming machine.
Typical coil widths include:
Panel Coverage
Coil Width
900 mm panel
1100 – 1150 mm coil
1000 mm panel
1200 – 1250 mm coil
Additional material is required to form the trapezoidal ribs during roll forming.
Materials Used for 50/250 Industrial Panels
50/250 industrial panels can be manufactured using several metal materials depending on environmental conditions.
Common materials include:
Galvanized steel
Galvalume steel
Aluminum
Pre-painted steel
Galvalume steel is widely used because of its corrosion resistance.
Industries Using 50/250 Industrial Panels
50/250 industrial panels are widely used in large structural roofing projects.
Typical applications include:
Industrial factories
Logistics warehouses
Distribution centers
Aircraft hangars
Manufacturing plants
Power generation facilities
These panels are ideal for long-span steel building structures.
Roll Forming Machines Used to Produce 50/250 Industrial Panels
50/250 industrial panels are produced using heavy-duty roll forming machines designed for structural roofing profiles.
Typical machine specifications include:
Number of forming stations
20 – 26 stations
Roller material
Hardened tool steel
Machine speed
10 – 20 meters per minute
Drive system
Gearbox drive
Cutting system
Hydraulic shear or flying shear
Control system
PLC automatic length control
These machines are designed for high-strength steel forming.
Installation Considerations
Proper installation ensures long-term performance of industrial roofing systems.
Important installation factors include:
Correct panel overlap
Fastener placement on rib peaks
Roof slope requirements
Sealing of side laps
Panels are typically overlapped by one rib.
Engineering Load Considerations
When designing roofing systems using 50/250 industrial panels, engineers must consider:
Wind uplift loads
Snow loads
Thermal expansion
Structural support spacing
These panels are typically installed over steel purlins or structural beams.
Common Manufacturing Problems
Manufacturing issues may occur if roll forming machines are not properly adjusted.
Common problems include:
Incorrect rib height
Uneven rib spacing
Panel distortion
Side lap misalignment
These issues can usually be corrected by adjusting roll tooling alignment.
Frequently Asked Questions
What does 50/250 industrial panel mean?
It refers to 50 mm rib height and 250 mm rib spacing.
What gauges are used for 50/250 industrial panels?
Typical gauges include 24, 22, 20, and 18 gauge steel.
Where are 50/250 industrial panels used?
They are commonly used for large warehouses, factories, aircraft hangars, and industrial roofing systems.
Are 50/250 industrial panels strong?
Yes. The deep rib geometry provides excellent structural rigidity and allows very long roof spans.
What coil width is required for 50/250 panels?
Typical coil widths range between 1100 mm and 1250 mm depending on panel design.
Conclusion
50/250 industrial panels are a heavy structural trapezoidal roofing and cladding profile designed for large-span industrial buildings. The deep rib design provides exceptional structural strength, long span capability, and reliable performance in demanding environments.
Understanding 50/250 industrial panel dimensions, rib spacing, steel gauges, coil width requirements, and span capabilities is essential for engineers, contractors, and manufacturers working with industrial roofing systems.
Roll forming machines designed for 50/250 industrial panel production allow manufacturers to efficiently produce durable roofing sheets used in large industrial structures.