Load-Bearing Sheet T153-40L-840

Height and optimal geometry of the T153 makes it the strongest load-bearing sheet in our portfolio.

For the optimal structural dimensioning, use Ruukki’s roof dimensioning software, Poimu.

T153 is targeted for roof structures with spans over 5m.

All of Ruukki’s load-bearing sheets can be equipped with smart technology. The new Ruukki® Roof Sensor system tracks snow loads on roofs in real time, prevents dangerous situations and saves costs by making snow removal smarter. Read more about the benefits of smart roofs here.

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 Sheet T153-40L-840
    Product code
    153 mm
    Width of valley
    40 mm
    Width of crown
    117 mm
    Effective width
    840 mm
    Minimum length
    800 mm
    Maximum Length
    18300 mm
    Typical Span
    >5 m
    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, EXC3
    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 - 9.81
    0.7 S350 Z100 Polyester 15 C2 RR20 9.81 
    0.7 S350 Z275 Polyester 25 C3 C3 RR20  9.81
    0.8  S350  Z275  Polyester 25   C3  C3 RR33  11.21 
    0.8  S350  Z100  Polyester 15  C2  RR20  11.21 
    0.9 S350 Z275 Galvanized  C2 - 12.62
    0.9 S350 Z100 Polyester 15 C2 - RR20 12.62
    1.0  S350  Z275  Galvanized  C2  - 14.02 
    1.0  S350  Z100  Polyester 15  C2  - RR20  14.02 
    1.0  S350  Z275   Polyester 25  C3  C3 RR20, RR33  14.02 
    1.0  S350  Z275   GreenCoat Pural  C4  RR23  14.02 
    1.2  S350   Z275 Galvanized   C2  16.82 
    1.2  S350   Z100   Polyester 15  C2  RR20   16.82 
    1.2  S350  Z275  Polyester 25  C3  C3  RR33  16.82 
    1.5  S350   Z275 Galvanized  C2  - 21.03 
    1.5  S350   Z100 Polyester 15  C2  RR20 21.03 


    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

    Roof Sensor

    Introduction to Ruukki Roof Sensor system

    The purpose and aim of the Ruukki® Roof Sensor System is to measure and visualize the snow load on roofs constructed with Ruukki load bearing sheets. The system provides valuable information for safety and management decisions concerning the building. It’s accessory for all Ruukki load bearing sheets and is available for new and old roofs that have access to the lower surface of the sheeting. The system is easy to install and use and there is no need for further monthly service fees. 

    Following corner stones are needed in the system 
    1. In structural design, Ruukki’s POIMU roof dimensioning program must be used
    2. Ruukki Roof Sensors location must be defined by the structural designer and sensors appropriately fitted by the installer
    3. The parameters needed in system configuration are defined in POIMU program
    After the sensors installation and system configuration, the system gives warnings when designers defined characteristic snow load level have been reached. Further warnings will be given well before load bearing sheeting is approaching its ultimate capacity. Warnings are given by visual light on the roof level and through user interface in web pages in a local network.


    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