45/150 Industrial Panel Dimensions, Rib Spacing, Gauge Range, and Span Tables
45/150 Industrial Panel Dimensions, Rib Spacing and Span Tables
The 45/150 Industrial Panel is a heavy-duty trapezoidal steel roofing and wall cladding profile designed for large industrial buildings requiring high structural strength and long span capability. The profile features deep trapezoidal ribs with a wide rib pitch, providing excellent load distribution across the panel.
The designation 45/150 typically refers to:
• 45 mm rib height
• 150 mm rib pitch (center-to-center rib spacing)
This deep rib design allows the panel to handle high wind loads, heavy snow loads, and large roof spans, making it suitable for large industrial buildings and steel structures.
45/150 industrial panels are commonly used in:
• factories
• logistics warehouses
• aircraft hangars
• distribution centers
• industrial plants
• large agricultural 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 manufacturers to produce panels in long continuous lengths to match roof dimensions.
This guide provides a detailed technical overview of 45/150 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 45/150 Industrial Panel
A 45/150 industrial panel is a trapezoidal metal roofing sheet with deep structural ribs designed for high load capacity and long spans.
Compared with standard roofing profiles such as 32/1000 or 34/1000, the 45/150 profile offers:
• deeper rib geometry
• wider rib spacing
• higher structural strength
• longer span capability
• improved drainage performance
Because of these features, the 45/150 panel is widely used in heavy industrial roofing systems.
Standard 45/150 Industrial Panel Dimensions
45/150 industrial panels typically contain multiple trapezoidal ribs distributed across the sheet width.
Typical dimensions include:
Specification
Typical Measurement
Coverage Width
900 – 1000 mm
Overall Width
1000 – 1080 mm
Rib Height
45 mm
Rib Pitch
150 mm
Number of Ribs
6 – 7
Panel Length
Custom roll formed
Coverage width refers to the effective installed panel width.
Rib Layout and Profile Geometry
The trapezoidal rib pattern increases the panel’s stiffness and structural 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
45 mm
Rib pitch
150 mm
Rib top width
40 – 50 mm
Rib base width
120 – 140 mm
This geometry provides strong structural reinforcement across the panel.
45/150 Industrial Panel Cross Section Dimensions
The cross section of the panel consists of several trapezoidal ribs separated by flat pans.
Typical cross section characteristics include:
Rib height
45 mm
Panel coverage width
900 – 1000 mm
Number of ribs
6 – 7 ribs
Side lap
1 rib overlap
The overlap ensures water-tight installation.
Steel Gauge Range for 45/150 Industrial Panels
45/150 industrial panels are usually manufactured using medium to heavy steel gauges.
Typical gauges include:
Gauge
Thickness
Typical Application
26 gauge
0.0179 in
Commercial roofing
24 gauge
0.0239 in
Industrial buildings
22 gauge
0.0299 in
Heavy industrial roofs
20 gauge
0.0359 in
Structural roofing systems
Thicker gauges increase load capacity and span capability.
45/150 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
26 gauge
4 – 6 ft
24 gauge
6 – 8 ft
22 gauge
8 – 10 ft
20 gauge
10 – 14 ft
Engineering calculations should always be performed for each project.
Coil Width Requirements for 45/150 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
Extra material is required to form the trapezoidal ribs during the roll forming process.
Materials Used for 45/150 Industrial Panels
45/150 industrial panels can be manufactured using several materials depending on environmental conditions.
Common materials include:
Galvanized steel
Galvalume steel
Aluminum
Pre-painted steel
Galvalume steel is commonly used due to its excellent corrosion resistance.
Industries Using 45/150 Industrial Panels
45/150 industrial panels are widely used in heavy construction projects.
Typical applications include:
Industrial factories
Logistics warehouses
Aircraft hangars
Manufacturing plants
Agricultural storage facilities
Large commercial buildings
The profile is ideal for large-span roofing structures.
Roll Forming Machines Used to Produce 45/150 Industrial Panels
45/150 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
12 – 25 meters per minute
Drive system
Gearbox drive
Cutting system
Hydraulic shear or flying shear
Control system
PLC automatic length control
Industrial panel roll forming machines are designed for high-strength steel processing.
Installation Considerations
Correct installation ensures long-term roof performance.
Important installation factors include:
Correct panel overlap
Fastener placement on rib peaks
Roof slope requirements
Side lap sealing
Panels are typically overlapped by one rib.
Engineering Load Considerations
When designing roofing systems using 45/150 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 problems may occur if roll forming machines are not properly adjusted.
Common issues 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 45/150 industrial panel mean?
The designation refers to 45 mm rib height and 150 mm rib spacing.
What gauges are used for 45/150 industrial panels?
Typical gauges include 26, 24, 22, and 20 gauge steel.
Where are 45/150 industrial panels used?
They are commonly used for industrial buildings, warehouses, factories, and large-span roofing systems.
Are 45/150 industrial panels strong?
Yes. The deep rib geometry provides excellent structural rigidity and long span capability.
What coil width is required for 45/150 panels?
Typical coil widths range between 1100 mm and 1250 mm depending on panel design.
Conclusion
45/150 industrial panels are a heavy-duty trapezoidal roofing and cladding profile designed for large industrial structures requiring high load capacity and long spans. The deep rib geometry provides excellent structural strength, improved drainage, and reliable performance in demanding construction environments.
Understanding 45/150 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 45/150 industrial panel production allow manufacturers to efficiently produce durable roofing sheets used in large industrial and commercial buildings.