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C and Z Purlins

SKU: C-and-Z-Purlins

Stratco manufacture a complete range of structural C and Z section purlins and girts for a wide range of applications. Made from quality, high tensile galvanized steel, Stratco purlins and girts can be supplied plain or punched.
Not available in VA

Quality Steel Purlins and Girts

Strong, reliable, high quality purlin and girt steel framing system

Stratco manufacture a complete range of structural C and Z purlins and girts for industrial buildings, garages, verandahs, and carports, in fact anywhere that strong, reliable steel framing is required. Manufactured from quality galvanised steel, this is a fully integrated system allowing for flexible design options.

Supplied plain or punched, galvanised purlins are manufactured from high tensile steel for increased strength, reduced weight, and a long serviceable life.

Extensive Range

Stratco produces an extensive purlin range with eight web heights and six thickness combinations, from 75mm to massive 400mm purlins capable of impressive spans. Fascia purlins are also available in the larger sizes. The following table shows the thicknesses available:

Web Depth in Millimeters
Thickness 75 100 150 200 250 300 350 400
1.0mm stratco tick grey stratco tick grey            
1.2mm stratco tick grey stratco tick grey stratco tick grey          
1.5mm stratco tick grey stratco tick grey stratco tick grey stratco tick grey        
1.9mm   stratco tick grey stratco tick grey stratco tick grey stratco tick grey      
2.4mm   stratco tick grey stratco tick grey stratco tick grey stratco tick grey stratco tick grey stratco tick grey stratco tick grey
3.0mm           stratco tick grey stratco tick grey stratco tick grey

High Quality Purlins

Stratco purlins are crisp, clean and square and by any assessment are a quality product. There is no need to tolerate rounded corners, inaccurate lengths, or out of square purlins any more. Insist on quality Stratco purlins for your project.

Fast Service

Stratco offers an exceptionally fast service. Installation of new state of the art machinery allows not only faster production times, but greater flexibility to meet your needs. A guide to standard lead times can be seen in the table below: For larger projects, some additional time may be required.

Installer Friendly Bridging System

'Rapidfix' bridging is a very fast and easy to install system developed with your installer in mind. The receiver end has a unique locator tag that allows both ends to be held in place. Installation is easier and faster for the rigger who is operating well off the ground, often in windy and difficult conditions. Rapidfix will save both time and money.

Engineering Support

Stratco Engineers have carried out extensive testing on both purlins and girts, and on the 'Rapidfix' bridging system. Capacity tables have been calculated in accordance with limit state design principles and comply with Australian / New Zealand Standard AS/NZ 4600 : 1996 Cold formed steel structures, using software developed by the Centre for Advanced Structural Engineering at the University of Sydney. They are your guarantee of strength and structural sufficiency.

Competitive Price

Experienced technical Representatives are able to advise you on pricing and delivery requirements. Our pricing is competitive, and we ask only for the opportunity to provide a price for your next project.

Profiles

Steel Framing Purlins Girts C Section Diagram

C Section Purlin

Steel Framing Purlins Girts Z Section Diagram

Z Section Purlin

Material Properties

Material Properties (MPa)
C Section 
Size
Z Section 
Size
Yield Stress 
fy
Ult. Tensile
Strength fu
75-12 - 500 520
75-15 - 450 480
75-95 - 550 550
100-10 100-10 550 550
100-12 100-12 500 520
100-15 100-15 450 480
100-19 100-19 450 480
100-24 100-24 450 480
150-10 150-10 550 550
150-12 150-12 500 520
150-15 150-15 450 480
150-19 150-19 450 480
150-24 150-24 450 480
200-12 200-12 500 520
200-15 200-15 450 480
200-19 200-19 450 480
200-24 200-24 450 480
250-15 250-15 450 480
250-19 250-19 450 480
250-24 250-24 450 480
300-24 300-24 450 480
300-30 300-30 450 480
350-24 350-24 450 480
350-30 350-30 450 480
400-24 400-24 450 480
400-30 400-30 450 480

Dimensions

Dimensions
t
mm
D
mm
Z Section C Section L
mm
Mass
kg/m
E
mm
F
mm
B
mm
0.95 75 - - 40 10.0 1.26
1.2 75 - - 40 10.7 1.59
1.5 75 - - 40 11.4 1.97
1.0 102 53 49 51 12.5 1.77
1.2 102 53 49 51 12.5 2.10
1.5 102 53 49 51 13.5 2.61
1.9 102 53 48 51 14.5 3.29
2.4 102 53 48 51 15.0 4.13
1.0 152 65 61 64 14.5 2.42
1.2 152 65 61 64 15.0 2.89
1.5 152 65 61 64 16.0 3.58
1.9 152 65 61 64 17.0 4.51
2.4 152 66 60 64 18.5 5.67
1.2 203 79 74 76 15.0 3.62
1.5 203 79 74 76 16.0 4.49
1.9 203 79 73 76 19.0 5.73
2.4 203 79 74 76 21.0 7.20
1.5 254 79 74 76 18.0 5.16
1.9 254 79 74 76 19.0 6.50
2.4 254 79 73 76 20.5 8.16
2.4 300 100 93 96 28.0 10.09
3.0 300 100 93 96 31.5 12.68
2.4 350 129 121 125 29.0 12.20
3.0 350 129 121 125 30.0 15.19
2.4 400 129 121 125 28.0 13.16
3.0 400 129 121 125 30.0 16.39
Web Depth in Millimeters
Thickness 75 100 150 200 250 300 350 400
1.0mm stratco tick grey stratco tick grey            
1.2mm stratco tick grey stratco tick grey stratco tick grey          
1.5mm stratco tick grey stratco tick grey stratco tick grey stratco tick grey        
1.9mm   stratco tick grey stratco tick grey stratco tick grey stratco tick grey      
2.4mm   stratco tick grey stratco tick grey stratco tick grey stratco tick grey stratco tick grey stratco tick grey stratco tick grey
3.0mm           stratco tick grey stratco tick grey stratco tick grey

 

Typical Assemblies

Steel-Framing-Purlins-Girts-C-Z-Section-Typical-Assemblies-01.jpg

A

Steel-Framing-Purlins-Girts-C-Z-Section-Typical-Assemblies-02.jpg

B

Steel-Framing-Purlins-Girts-C-Z-Section-Typical-Assemblies-03.jpg

C

A - Angle connector and Clamp Plate being used to anchor a C Section to a concrete slab floor.
B - Typical 90° connection using a General Purpose Bracket.
C - Simple connection to the open face of a C Section using an Angle connector and Clamp Plate.


Lapping

Figure 1

Steel Framing Purlins Girts C Z Section Lapping

Figure 2

Steel Framing Purlins Girts C Z Section Lapping


Fastening to Cleats

Steel Framing Purlins Girts C Z Section Cleat Detail

Hole Punching and Cleat Detail

Cleat Nominal Dimensions (mm)
Nom. Sec. Size X B Y Gap DH
100 40 40 110 10 18
150 60* 55** 145 10 18
200 110 55 195 10 18
250 160 55 245 10 18
300 210 65 305 20 22
350 260 65 355 20 22
400 310 65 405 20 22

Note: When using downturn lip purlins or girts, dimension B and Y must be increased by the length of the lip.
* 70mm in Victoria   ** 50mm in Victoria

Steel-Framing-Purlins-Girts-C-Z-Section-Cleat-Fastening-01.png

Z Purlin Standard*

Steel-Framing-Purlins-Girts-C-Z-Section-Cleat-Fastening-02.png

Z Girt Standard

Steel-Framing-Purlins-Girts-C-Z-Section-Cleat-Fastening-03.png

Z Girt Optional

Steel-Framing-Purlins-Girts-C-Z-Section-Cleat-Fastening-04.png

C Purlin Standard*

Steel-Framing-Purlins-Girts-C-Z-Section-Cleat-Fastening-05.png

C Girt Standard

Steel-Framing-Purlins-Girts-C-Z-Section-Cleat-Fastening-06.png

C Girt Optional

* Z and C Section purlins must have the top flange pointing up the slope to minimise rotation.


Bridging Components

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Components-01.jpg

A - Locking End

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Components-02.jpg

B - Receiving End

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Components-03.jpg

C - Bolted End

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Components-04.jpg

D - Fascia Bracket


Bridging Assemblies

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Assemblies-01.jpg

E - Ridge Bridging

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Assemblies-02.jpg

F - Ridge Bridging Strut

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Assemblies-03.jpg

G - Intermediate Bridging Strut

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Assemblies-04.jpg

H - Turnbuckle

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Assemblies-05.jpg

I - Adjustable Fascia Bridging

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Assemblies-06.jpg

J - Girt Hanger

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Assemblies-07.jpg

K - Girt Foot

Steel-Framing-Purlins-Girts-C-Z-Section-Bridging-Assemblies-08.jpg

L - Tie Rod


Bridging Configurations

Steel Framing Purlins Girts C Z Section Bridging Configurations

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