Z 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.

Copyright © 2019 Ruukki Construction. All Rights Reserved.

    Properties
    Purlins_Z_-_cross-section.ashx
    Model name
    Z Purlin
    Section type
    Z-sections
    Height
    100, 120, 150, 200, 250, 300 mm
    Thickness
    1.0–3.0 mm
    Minimum length
    1600 mm
    Maximum Length
    18000 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) H (mm) A (mm) B (mm) C (mm) Weight (kg/m)
    LP-Z100 1 100 45 39 >=15.50 1.63
    1.2 45.4 39.4 >=15.90 1.96
    1.5 46 40 >=16.50 2.45
    LP-Z120 1 120 45 39 >=16.00 1.81
    1.2 45.4 39.4 >=16.40 2.17
    1.5 46 40 >=17.00 2.71
    2 47 41 >=18.00 3.61
    LP-Z150 1 150 45 39 >=16.00 2.04
    1.2 45.4 39.4 >=16.40 2.45
    1.5 46 40 >=17.00 3.06
    2 47 41 >=18.00 4.08
    LP-Z200 1.5 200 70 62 >=24.00 4.36
    2 71 63 >=25.00 5.81
    2.5 72 64 >=26.00 7.26
    3 73 65 >=27.00 8.71
    LP-Z250 1.5 250 70 62 >=24.00 4.92
    2 71 63 >=25.00 6.56
    2.5 72 64 >=26.00 8.2
    3 73 65 >=27.00 9.84
    LP-Z300 1.5 300 89 81 >=22.50 5.95
    2 90 82 >=23.50 7.93
    2.5 91 83 >=24.50 9.91
    3 92 84 >=25.50 11.89
    Accessories

    Accessories

    Design tools

    Design tools

    Our PurCalc software is constantly improved and updated to easily design and optimise Ruukki’s lightweight purlin sections. 

    Choosing the right filters will help you to select the right product characteristics. The software enables the calculation of various roof purlin systems, whether the purlins are restrained by trapezoidal sheeting or roof sandwich panels. 

    Download PurCalc

    Detail drawings (.dwg)

    Detail drawings (.pdf)

    Instructions

    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

    Technical manual

    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 hole Diameter (mm) Rotation (°)
    Round 7 -
    Round 10 -
    Round 12 -
    Round 14 -
    Round 16 -
    Round 18 -
    Round 20 -
    Round 22 -
    Round 26 -
    Round 60 -
    Oval 12×24 90
    Oval 14×24 90
    Oval 16×35 90
    Oval 18×31.7 90
    Oval 18×35 90
    Oval 20×35 90
    Rectangular 5×25 90
    Certificates & approvals

    Declaration of performance