Finger-Jointed Structural Timber

Finger-jointed Structural Timber

Structural finger-jointed solid timber according to DIN EN 15497. Finger joints glued with MUF-resin. Maximum moisture content allowed is 18%.

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What is finger-jointed structural timber (KVH)?

Finger-jointed structural wood for load bearing pursposes is produced according to harmonized EU-standard EIN EN 15497. It consists of solid pieces of wood that are glued together lengthwise. The connection between the wood pieces is established via milled finger-joints.

The technique of finger-jointing wood revolutionized wood processing in many ways and is key part of many of today’s wood products. By finger-jointing wood products such as finger-jointed structural timber can be produced with “infinite” length, enabling e.g. the production of 40m wide glulam beams. We have use this technique for almost 50 years and have been able to accumulate lots of experience.

Thanks to finger-jointing and the use of high-performance adhesives, we can produce finger-jointed structural timber with lengths of up to 15 meters. The sawn wood used for this product is graded visually, analogous to producing normal structural timber of shorter lengths. Wood features that are undesirable in terms of load bearing performance or visual requirements (e.g. knots, wane…) are cut out systematically and according to strict rules. This way, homogeneous properties can be achieved over the total length of the product.

Specificatinos & Dimensions

Finger-jointed structural timber is normally manufactured within the following ranges:

Thickness:	30 – 120 mm
Width:	80 – 240 mm
Length:	up to 15 m

For greater cross sections, we recommend switching from finger-jointed structural timber to glued solid timber or glued laminated timber. The latter products are made from thinner, more homogenous sawn wood and follow more strict requirements when it comes to moisture content, resulting in less swelling and/or shrinking when being placed in dry conditions.

Wood Species

Finger-jointes structural timber is made in industrial and visual quality according to DIN EN 15497, using spruce and pine.

Spruce

Pine

Moisture Content

The maximum moisture content allowed is 18 % according to DIN EN 15497. Every single piece of wood is measured individually in a fully automated process.

Adhesives

We currently use MUF-Adhesives for producing finger-jointed structural timber.