Slats, laths - and delivery ...

Actually mostly for subordinate purposes and nevertheless irreplaceable - roof battens, double battens raw or planed as substructure hardly visible and nevertheless important.

The modern wood industry has been able to achieve a significant product improvement with finger-jointing. As a result, e.g. pieces of branches can be cut out and glued again "seamlessly" and force-locked by finger-jointing in a high-frequency gluing process.