28/200 Industrial Panel Dimensions, Rib Spacing, Gauge Range, and Span Tables
28/200 Industrial Panel Dimensions, Rib Spacing and Span Tables
The 28/200 Industrial Panel is a trapezoidal metal roofing and wall cladding profile commonly used in light industrial buildings, commercial structures, and agricultural construction. The profile uses evenly spaced trapezoidal ribs that provide structural stiffness while maintaining efficient water drainage and economical steel usage.
The designation 28/200 refers to the profile geometry:
• 28 mm rib height
• 200 mm rib pitch (center-to-center spacing)
This design provides a balanced combination of strength, cost efficiency, and easy manufacturing.
28/200 industrial panels are commonly used in:
• warehouses
• agricultural buildings
• light industrial buildings
• storage facilities
• commercial structures
• wall cladding systems
These panels are manufactured using roll forming machines that shape steel coil into trapezoidal ribs through multiple forming stations. Because roll forming is a continuous process, panels can be produced in long custom lengths to match roof dimensions.
This guide provides a detailed technical overview of 28/200 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 28/200 Industrial Panel
A 28/200 industrial panel is a trapezoidal metal roofing sheet designed with structural ribs that increase the rigidity of the sheet.
Compared with traditional corrugated panels, trapezoidal industrial panels offer:
• improved structural stiffness
• increased span capability
• better water drainage
• more efficient installation
These panels are widely used in metal building systems because they combine strength with economical steel usage.
Standard 28/200 Industrial Panel Dimensions
28/200 industrial panels contain several trapezoidal ribs across the sheet width.
Typical dimensions include:
Specification
Typical Measurement
Coverage Width
900 – 1000 mm
Overall Width
1000 – 1080 mm
Rib Height
28 mm
Rib Pitch
200 mm
Number of Ribs
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 layout increases panel stiffness and load distribution.
Typical rib layout characteristics include:
• trapezoidal ribs
• flat pan sections between ribs
• anti-capillary side lap design
Typical rib dimensions include:
Feature
Measurement
Rib height
28 mm
Rib pitch
200 mm
Rib top width
40 – 60 mm
Rib base width
120 – 140 mm
The rib pattern reinforces the panel across its width.
28/200 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
28 mm
Panel coverage width
900 – 1000 mm
Number of ribs
5 ribs
Side lap
1 rib overlap
The overlap prevents water penetration between panels.
Steel Gauge Range for 28/200 Industrial Panels
28/200 industrial panels are typically manufactured using light to medium steel gauges.
Typical gauges include:
Gauge
Thickness
Typical Application
29 gauge
0.0142 in
Agricultural buildings
26 gauge
0.0179 in
Commercial roofing
24 gauge
0.0239 in
Industrial buildings
22 gauge
0.0299 in
Heavy-duty roofing
Thicker gauges provide improved structural strength.
28/200 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
29 gauge
3 – 4 ft
26 gauge
4 – 5 ft
24 gauge
5 – 7 ft
22 gauge
7 – 9 ft
Engineering calculations must always be performed for specific building conditions.
Coil Width Requirements for 28/200 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 28/200 Industrial Panels
28/200 industrial panels can be manufactured using several metal materials depending on project requirements.
Common materials include:
Galvanized steel
Galvalume steel
Aluminum
Pre-painted steel
Galvalume steel is widely used because of its corrosion resistance.
Industries Using 28/200 Industrial Panels
28/200 industrial panels are widely used across multiple construction sectors.
Typical applications include:
Industrial buildings
Warehouses
Agricultural buildings
Factories
Commercial buildings
Wall cladding systems
These panels are commonly used in metal building construction.
Roll Forming Machines Used to Produce 28/200 Industrial Panels
28/200 industrial panels are produced using roll forming machines designed for trapezoidal roofing profiles.
Typical machine specifications include:
Number of forming stations
16 – 20 stations
Roller material
Hardened tool steel
Machine speed
15 – 35 meters per minute
Drive system
Chain drive or gearbox drive
Cutting system
Hydraulic shear or flying shear
Control system
PLC automatic length control
These machines allow efficient high-speed panel production.
Installation Considerations
Correct installation ensures long-term roofing performance.
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
Engineers designing roofing systems using trapezoidal panels must consider:
Wind uplift loads
Snow loads
Thermal expansion
Structural support spacing
These panels are commonly installed on steel purlins.
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 waviness
Side lap misalignment
These issues can usually be corrected by adjusting roll tooling alignment.
Frequently Asked Questions
What does 28/200 industrial panel mean?
It refers to 28 mm rib height and 200 mm rib spacing.
What gauges are used for 28/200 industrial panels?
Typical gauges include 29, 26, 24, and 22 gauge steel.
Where are 28/200 industrial panels used?
They are widely used for warehouses, agricultural buildings, factories, and commercial roofing systems.
Are 28/200 industrial panels strong?
Yes. The trapezoidal rib design increases structural rigidity compared with traditional corrugated panels.
What coil width is required for 28/200 panels?
Typical coil widths range between 1100 mm and 1250 mm depending on panel design.
Conclusion
28/200 industrial panels are a versatile trapezoidal metal roofing and cladding profile widely used in commercial, industrial, and agricultural construction. The rib geometry provides improved structural strength, efficient drainage, and reliable performance in a wide range of building applications.
Understanding 28/200 industrial panel dimensions, rib spacing, steel gauges, coil width requirements, and span capabilities is essential for engineers, contractors, and manufacturers working with metal roofing systems.
Roll forming machines designed for 28/200 industrial panel production allow manufacturers to efficiently produce durable roofing sheets for metal building systems.