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The new series of transparencies entitled “Hochleistungsbaustoffe für den Holzbau” from Überwachungsgemeinschaft Konstruktionsvollholz e.V....

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Tendering

The work required must be described clearly and in sufficient detail to ensure that all bidders understand the description to have the same meaning and to enable them to calculate their prices with certainty and without extensive preparatory work. You can only be certain of obtaining the correct product if the wording in your tender documents is clear, complete and correct in technical terms. Given the high standard of quality to be met by KVH®, Duobalken® and Triobalken®, careful quality controls are required during production. It is therefore in your own interest to ensure that the timber you are supplied with comes from quality-supervised production sources. For an up-to-date list of supervised firms, please see www.kvh.eu.

Technical standards

General

  • Agreement between the Federation of German Carpenters (Bund Deutscher Zimmermeister) and Überwachungsgemeinschaft Konstruktionsvollholz e.V. on KVH® structural timber made of spruce, fir, pine, larch and Douglas fir (September 2015 version). 

non-finger-jointed KVH® structural timber:

  • EN 14081-1 ‒ timber structures ‒ strength graded structural timber for load-bearing applications with rectangular cross-section ‒ Part 1: General requirements

finger-jointed KVH®:

  • EN 15497 Timber structures from finger-jointed structural timber, requirements acc. to

Duobalken® and Triobalken®:

  • EN 14080 Structural timber ‒ glue-laminated timber and laminated beams ‒ requirements

 


Tender wording for the supply of construction timber made of KVH® structural timber

Item ...; ... m³ Supply of finger-jointed KVH® structural timber, Si, C24

KVH® Si (for exposed areas) structural timber compliant with EN 15497, C24, spruce, acc. to agreement on KVH® solid structural timber (version September 2015) from supervised production.

Item ...  ... m³ Supply of non-finger-jointed KVH® structural timber, NSi, C24

KVH® NSi (for non-exposed areas) acc. to EN 14081-1, C24, spruce, acc. to agreement on KVH® solid structural timber (version September 2015) from supervised production.

Tender wording for the supply of laminated beams

Item ... ... m³ Supply of Duobalken® laminated beams, NSi, S10/C24 acc. to EN 14080:2013

Duobalken® NSi (for non-exposed areas) laminated beams, made of two planks which are glued together, compliant with EN 14080, C24, spruce, acc. to agreement on Duobalken®/Triobalken® (version September 2015) from supervised production.

Triobalken® laminated beams, NSi, C24 according to EN 14080:2013

Triobalken® NSi (for non-exposed areas) laminated beams, made of three planks which are glued together, compliant with EN 14080, C24, spruce, acc. to agreement on Duobalken®/Triobalken® (version September 2015) from supervised production.  

Special requests 

Wood species

By default, KVH® and Duobalken® and Triobalken® are delivered in spruce/fir. The timber is available in pine, larch and Douglas fir on request.