Fewer sheet joints: XXXL-format 3-SO sheets

01.10.2012 | Press
Until recently, the large-area sheets available for use on formworks requiring small numbers of joints have tended to be smooth-surfaced ones. In cases where both vibrant wood-structured surfaces and harmonious sheet-patterns are required, joint-reduced formwork elements can now also be faced with the new extra-wide XXXL format sheets 3-SO.


  • The new, extra-wide, large-format 3-SO sheets make it possible to cast joint-reduced architectural surfaces with a fine wood structure.
  • With the new, extra-wide, large-format 3-SO sheets, it becomes feasible to cast fair-faced concrete surfaces with a small number of joints and fewer joint-related ‘shoulders’.
  • 3-SO formwork sheets from Doka make it possible to achieve vibrant surfaces, with a fine wood structure.
A familiar and well-proven product on countless sites over the years, the bright yellow 3-SO formwork sheet is an ÖNORM B 3023-compliant 3-ply formwork sheet made of spruce that is designed to deliver an even concrete surface with a uniform, slightly wood-structured appearance. It provides dependable quality for many repeat uses and first-rate concrete results, at a favourable price/performance ratio.

Alongside the existing dimensions in widths of 50 cm and 100 cm, the low-absorbency 3-SO formwork sheets are now also available in the XXXL-formats 250x125, 300x150 and 600x150 cm. These make it feasible to form fair-faced concrete surfaces with a small number of sheet-joints and thus fewer joint-related ‘shoulders’. The sheets have high dimensional and angle accuracy and are uniformly coated with urea melamine resin adhesive.

The 3-SO sheet is typified by the following attributes:
• robust, for repetitive re-use with better endurance behaviour than plywood (especially regarding twisting)
• highly bending-resistant in the longitudinal direction, yet with low weight
• low-absorbency sheet surface for uniform concrete faces with normal pore formation and a light concrete colouration
• the wood-grain pattern means that any textural interruptions in the concrete surface are less visible than with smooth formwork sheets
• insensitive to nailing, drilling and cutting, with no need to re-seal the places affected
• relatively low swelling, no rippling

The low-absorbency 3-SO formwork sheets in the XXXL-formats 250x125, 300x150 and 600x150 cm are available from Doka as of now.

This could also be of interest for you:

An all-round success

13.01.2022 | Press

5 life hacks for concrete monitoring of the future

29.11.2021 | News

Stay in the loop and subscribe to our Press Newsletter!

To the registration form

Do you have any questions on the article? Get in touch with us!

Fields marked with * are required.
* Please fill out all required fields!
Message could not be sent – please try again a little later!
Many thanks for the enquiry!

We will get back to you as soon as possible.