L Purlin

Our pre-punched purlins are quick to install and suitable for both insulated and uninsulated roofs and walls. 

The thickness and height of the purlin selected depend on span length and loads. To optimise the design, use our PurCalc software.

Applications:

  • Industrial construction
  • Hall and warehouse construction
  • Extension construction and renovation

The information on our website is accurate to the best of our knowledge and understanding. Although every effort has been made to ensure accuracy, the company cannot accept any responsibility for any direct or indirect damages resulting from possible errors or incorrect application of the information of this publication. We reserve the right to make changes.

Properties

L-purlin-cross-sections

 

Model name
L Purlin
Height
50 - 100 mm
Thickness
1.0, 1.2, 1.5, 2.0, 2.5, 3.0 mm
Section type
L-sections
Minimum length
0 mm
Maximum Length
15000 mm
Material
Hot galvanised steel sheet Steel quality S350GD+Z275 according to EN 10346
Tolerances
Dimensions and shape according to EN 1090-4, material thickness according to EN 10143
 

Cross-section geometries


Type of purlin Thickness (mm) Width of flange
A (=B) (mm)
Weight (kg/m)
LP-L 50 1,0 51,0 0,80
1,2 51,0 0,96
1,5 51,5 1,20
  2,0 52,0 1,60
LP-L 70 1,0 71,0 1,12
1,2 68,5 1,30
1,5 66,5 1,56
2,0 70,5 2,32
  3,0 75,5 3,48
LP-L 100 1,0 101,0 1,60
1,2 101,0 1,92
1,5 101,5 2,40
2,0 99,5 3,12
2,5 75,0 2,90
3,0 98,0 4,56

Design tools

Purcalc-logo

PurCalc® software for designing purlins

With the PurCalc® software, the user can design roof and wall purlins produced by Ruukki. The purlins are designed as continuous beams. The purlin type must be the same for the whole structure, but the thickness may vary. One of the purlin flanges is assumed to be supported with the profile sheet. The other flange may be either supported or unsupported. Basic loads such as uniform snow load and wind load can be easily given with a few parameters. Also, more complicated load types, such as snowdrift loads, can be given. The software calculates the necessary fasteners for the supporting structure as well.

Go to PurCalc® software

Ordering

Please provide the following information when ordering:

  • Type of purlin
  • Thickness
  • Length
  • Number.

In case of pre-punched purlins, please send us purlin drawings showing the location of the holes.

 

pre-punched-purlins

 

Pre-punching service

Purlins can be pre-punched in our factory. This makes construction on-site faster and easier. The standardised sizes and locations of holes for fixing screws are presented below. Please contact us for additional information about the pre-punching possibilities.

Holes are made during production at continuous line.

Additional information:

  • Max. material thickness 3mm (for ø 60mm max. material thickness 2mm)
  • Holes can be made in a row
  • Oval and rectangular holes can be rotated by 90°.

 

Type of holeDiameter (mm)Rotation (°)
Round7-
Round10-
Round12-
Round14-
Round16-
Round18-
Round20-
Round22-
Round26-
Round60-
Oval12×2490
Oval14×2490
Oval16×3590
Oval18×31.790
Oval18×3590
Oval20×3590
Rectangular5×2590

Technical documents

Here you can find all technical documents related to Ruukki's light weight purlins. Documents are organised by document type. Click to enter document library.

Certificates and approvals

Here you can find all certificates and approvals related to Ruukki's light weight purlins. Documents are organised by document type. Click to enter document library.