Pile couplers

Pile couplers are used for connecting segments of prefabricated foundation piles when the required pile length exceeds the maximum as-delivered lengths.

Regulatory framework

Pile couplers are usually regulated together with precast reinforced concrete piles in accordance with DIN EN 12794 or together with other piles through national technical approvals (abZ) / European Technical Assessments (ETAs) / general construction technique permits (aBG).

DIBt can grant national technical approvals for the individual product 'pile coupler' where necessary. European Technical Assessments (ETAs) can also be issued for these products.

Please also refer to the applicable Technical Building Rules, cf. MVV TB Part A 1.

EAD 200014-01-0103 Pile Joints and Rock shoes for concrete piles (15 pages ) Version: June 2018; OJEU 2018/C 370/05; EOTA

National procedure

To prepare an abZ/aBG for your construction product, we need an application from you. We recommend that you contact us prior to doing so. Feel free to send us your enquiry informally via email to dibt(at)dibt(.)de or to the competent technical contact listed in the top right.

For a first assessment, please send us the following information:

  • Description of the construction product and its intended field of use
    • e.g. material, configuration, number of sizes, variants, dimensions
    • e.g. use in walls, ceilings, interior construction, building services
  • Description of the construction technique and its field of application
    • e.g. design of walls, ceilings, elements, etc., and interaction of components
    • e.g. application in foundation engineering, reinforced concrete construction, building insulation; as load-bearing or non-load-bearing component; under static and quasi-static loading; fire exposure; other environmental exposures
  • Information regarding impact on regulatory concerns
    • in particular structural integrity, fire protection, health and environment protection, sound insulation as well as thermal performance
  • Explanation of need for an abZ/aBG
  • Contact details
    • preferably email address and/or telephone number, as well as name, organisation/company, and postal address

We will then contact you to clarify the next steps.

If you already hold a DIBt approval and/or construction technique permit and wish to apply for an amendment, supplement, or renewal, please use the form provided below.

European Technical Assessment (ETA)

To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.

Subject concerned Applicant Decision no. Issued on
Pile joints for concrete Piles System "CPG" Centrum Pæle A/S Grønlandsvej 96 7100 Vejle DÄNEMARK ETA-17/0714 12.07.2018