What the finger joint does
After defect removal what remains is short but clean lamellae. Finger-jointing cuts interlocking fingers into their ends and glues them, reaching the required length.
The finger geometry enlarges the glue area enormously; the joint carries load across a far wider surface than a plain butt glue line.
What it means for strength
The advantage of a jointed element is not only length. Because it is made of lamellae with the knots cut out, it contains fewer weak points than a solid piece of the same length.
In a long solid section a knot can land exactly at the critical point; in a jointed element that knot has already been removed. Jointed production therefore behaves more predictably in many applications.
When solid is genuinely needed
Solid production is for cases where a visible joint is unacceptable. That is usually an aesthetic requirement rather than a mechanical one.
- Visible faces viewed closely and finished with clear lacquer
- Decorative work where the joint pattern would break the design
- Jobs where the client specification explicitly calls for solid
Mixing the two is the most economical answer
On most projects, choosing solid for visible faces and jointed for hidden parts gives the expected appearance without pushing the cost up unnecessarily.
In the catalogue, panelling, decking, wall profile and glulam products can all be produced finger-jointed or solid; which one applies is decided per part.