Oak – Semi Seasoned – Square Edge – Structural

Our structural timber is categorised as FRESH SAWN (FS) for 6 months from it’s sawn date. From 7-24 months from the sawn date we categorise it as PART SEASONED (PS) and from 25 months from the sawn date we categorise it as SEMI SEASONED (SS).

In this way the age of the sawn structural section corresponds to a level of drying / seasoning.

For engineering calculations our structural timber is technically ‘wet graded’ as, due to section size, it cannot reach the moisture content required for ‘dry graded’.