Liner Panel Dimensions, Rib Spacing, Gauge Range, and Span Tables
Liner Panel Dimensions, Rib Spacing and Span Tables
The Liner Panel is a metal wall panel used as an interior wall system in metal buildings. Unlike exterior wall cladding panels, liner panels are installed on the inside of structural framing to provide a finished interior surface and support insulation systems.
Liner panels are commonly used in pre-engineered metal buildings where insulation and interior wall protection are required.
Typical applications include:
• warehouses
• factories
• distribution centers
• agricultural buildings
• aircraft hangars
• cold storage facilities
• industrial buildings
Liner panels are manufactured using roll forming machines that shape steel coil into shallow ribbed panels designed for interior wall applications.
This guide provides a detailed technical overview of liner panel dimensions, rib spacing, steel gauges, coil width requirements, and span capabilities used by engineers, contractors, and building manufacturers.
What is a Liner Panel
A liner panel is an interior metal wall panel installed on the inside of metal building framing systems. The panel acts as a backing surface for insulation systems and creates a clean interior finish.
Unlike exterior wall panels, liner panels are designed primarily for structural support and insulation containment rather than weather protection.
Key advantages include:
• clean interior building finish
• insulation support system
• improved building durability
• easy installation
• protection of insulation materials
Because of these characteristics, liner panels are widely used in steel building construction.
Standard Liner Panel Dimensions
Liner panels are typically manufactured with wide coverage widths to allow quick installation inside large buildings.
Typical dimensions include:
Specification
Typical Measurement
Coverage Width
36 – 40 inches (914 – 1016 mm)
Overall Width
40 – 42 inches (1016 – 1067 mm)
Rib Height
3/8 – 1/2 inch (9 – 13 mm)
Rib Pitch
9 – 12 inches (229 – 305 mm)
Number of Ribs
3 – 5
Panel Length
Custom roll formed
Coverage width refers to the effective installed width of the panel.
Rib Layout and Profile Geometry
Liner panels typically use shallow ribs designed to improve panel stiffness while maintaining a smooth interior appearance.
Typical rib layout characteristics include:
• shallow trapezoidal ribs
• wide flat panel surfaces
• exposed fastener installation
• overlap side joints
Typical rib dimensions include:
Feature
Measurement
Rib height
9 – 13 mm
Rib spacing
229 – 305 mm
Rib top width
25 – 40 mm
Rib base width
60 – 100 mm
These ribs improve panel rigidity and support insulation systems.
Liner Panel Cross Section Dimensions
The cross section of a liner panel consists of shallow ribs separated by flat sections.
Typical cross section characteristics include:
Rib height
9 – 13 mm
Coverage width
36 – 40 inches
Number of ribs
3 – 5 ribs
Fixing system
Exposed fasteners
These panels are designed primarily for interior installation.
Steel Gauge Range for Liner Panels
Liner panels are typically manufactured using lighter steel gauges compared with exterior wall panels.
Typical gauges include:
Gauge
Thickness
Typical Application
29 gauge
0.0142 in
Agricultural buildings
28 gauge
0.0157 in
Warehouses
26 gauge
0.0179 in
Industrial buildings
24 gauge
0.0239 in
Heavy-duty installations
Thicker gauges provide improved durability and impact resistance.
Liner Panel Span Tables
Liner panels are installed on interior wall framing systems.
Span capability depends on:
• panel thickness
• rib height
• structural support spacing
• building design
Typical span ranges include:
Gauge
Wall Span
29 gauge
3 – 4 ft
26 gauge
4 – 6 ft
24 gauge
6 – 8 ft
Engineering calculations should always be performed for specific building conditions.
Coil Width Requirements for Liner Panels
Steel coil must be slit to the correct width before entering the roll forming machine.
Typical coil widths include:
Panel Coverage
Coil Width
36 inch panel
40 inch coil
40 inch panel
44 inch coil
Additional material is required to form ribs during roll forming.
Materials Used for Liner Panels
Liner panels can be manufactured using several metal materials depending on building requirements.
Common materials include:
Galvanized steel
Galvalume steel
Pre-painted steel
Galvanized steel is commonly used for interior liner panel applications.
Industries Using Liner Panels
Liner panels are widely used across industrial and agricultural construction sectors.
Typical applications include:
Warehouses
Factories
Distribution centers
Agricultural buildings
Aircraft hangars
Cold storage buildings
These panels provide structural support and interior finishing.
Roll Forming Machines Used to Produce Liner Panels
Liner panels are produced using roll forming machines designed for shallow rib interior panels.
Typical machine specifications include:
Number of forming stations
12 – 16 stations
Roller material
Hardened tool steel
Machine speed
15 – 35 meters per minute
Drive system
Chain drive or gearbox drive
Cutting system
Hydraulic shear
Control system
PLC automatic length control
These machines allow efficient high-volume panel production.
Installation Considerations
Proper installation ensures structural performance and insulation support.
Important installation factors include:
Correct panel overlap
Fastener placement on ribs
Insulation installation behind panel
Proper framing spacing
Liner panels are typically installed on interior steel girts.
Engineering Load Considerations
Engineers designing liner panel systems must consider:
Wall load requirements
Insulation support
Structural framing spacing
Impact resistance
These panels are typically installed on steel framing systems.
Common Manufacturing Problems
Manufacturing problems may occur if roll forming machines are not properly adjusted.
Common issues include:
Incorrect rib height
Panel waviness
Side lap misalignment
Uneven panel width
Proper roll tooling alignment helps prevent these issues.
Frequently Asked Questions
What is a liner panel?
A liner panel is an interior metal wall panel used inside metal buildings to support insulation and provide a finished interior surface.
What gauges are used for liner panels?
Typical gauges include 29, 28, 26, and 24 gauge steel.
What is the typical width of liner panels?
Liner panels are typically manufactured with coverage widths between 36 inches and 40 inches.
Where are liner panels used?
They are commonly used in warehouses, factories, agricultural buildings, and industrial facilities.
Why are liner panels used?
They provide interior wall protection, insulation support, and a clean interior building finish.
Conclusion
Liner panels are an essential interior component in metal building systems, providing structural support for insulation and creating a durable interior wall surface. The shallow rib design offers adequate strength while maintaining a clean interior appearance.
Understanding liner panel dimensions, rib spacing, steel gauges, coil width requirements, and span capabilities is essential for engineers, contractors, and metal building manufacturers.
Roll forming machines designed for liner panel production allow manufacturers to efficiently produce interior wall panels used in warehouses, industrial buildings, and agricultural facilities.