Load-Bearing Arched Sheet T45-30L-905

As one of the few manufacturers of load-bearing arched sheets on the market, we offer smooth arched profiles for curved structures. This product enables curved structures and surfaces for roofs and claddings.


  • Canopies
  • Entrances
  • Spectator stands.

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.

    Model name
    Load-Bearing Arched Sheet T45-30L-905
    Product code
    44 mm
    Width of valley
    60 mm
    Width of crown
    30 mm
    Effective width
    905 mm
    Minimum length
    2800 mm
    Maximum Length
    15000 mm
    Quality control
    Factory production control according to EN 1090-1 and EN 1090-4
    Dimensions and shape according to EN 1090-4, material thickness according to EN 10143
    CE Marking
    Execution class
    EXC1, EXC2

    Minimum radius


    Material thickness (mm) Rmin (mm)
    0.7 17500
    0.9 5500



    Material thickness (mm) Steel grade Zinc (g/m2) Surface treatment Corrosion class, interior Corrosion class, exterior Colours  Weight (kg/m2)
    0.7 S350 Z275 Galvanized C2 - 7.59
    0.7 S350  Z275  Polyester 25  C3  C3  RR20  7.59
    S350  Z275  Pural    C4  RR21, RR23, RR33  7.59 
    0.9 S350 Z275 Galvanized C2 - 9.76
    0.9  S350  Z275  Polyester 25  C3   C3  RR20  9.76 


    Note: The reverse sides of the colour coated sheets are painted as standard with 2-layer grey backside coating


    Protection against corrosion

    Environment Coating
    Interior applications in environments with corrosivity category C1, C2 according to EN ISO 12944-2 standard and A1, A2 according to EN 10169 standard Steel sheets with zinc coating of 100 g/m2 and with polyester coating SP 15, thickness 15 μm
    Interior applications in environments with corrosivity category C1, C2, C3 according to EN ISO 12944-2 standard and A1, A2, A3 according to EN 10169 standard Steel sheets with zinc coating of 275 g/m2 and with polyester coating SP 25, thickness 25 μm

    Accessories for load bearing sheets include e.g. flashings, fasteners, gaskets and sealing flanges. These accessories ensure fast assembly, fastening reliability, joint tightness.
    Design tools
    To make both architectural and structural design work easier, with accurate product information in 3D form, we offers a selection of CAD / BIM -objects and software tools, to be downloaded from the Software Toolbox portal.

    Ready modelled BIM objects

    Download objects for ArchiCAD
    Download objects for Revit

    Dimensioning software Poimu

    We offer excellent dimensioning software, Poimu, which allows you to optimise product choice according to the Eurocode.
    Simply by defining some basic input data you can select a load-bearing sheet for their needs from Ruukki's selection. This quick optimisation tool covers 1-, 2-span and continuous structures and gives the exact solution as to what sheet should be used, as well as its length. 

    Download Poimu

    Detail drawing (.dwg)

    Detail drawing (.pdf)



    Assembly instructions document includes information about:

    • Packing
    • Transportation and unloading
    • Storing
    • Assembling.
    Certificates & approvals

    Declaration of performance