Crown Timber of Gloucestershire has quarantined all its stock from Swedish sawmill Gransjoeverken AB which has had its grading licence suspended after allegedly marking timber without sending it through a grading machine.

The omission was discovered by an inspector from SP, the Swedish national testing and research institute, who said the situation could have been occurring for some time.

As well as quarantining stock, Crown Timber, which is Gransjoeverken’s largest UK distributor, has stopped all shipments and told customers of the problem.

Gransjoeverken director Lars Olsen said up to 200m³ of timber were graded and marked before being split and the pieces ‘wrongly marked’. Production was stopped immediately and the mill is investigating the problem.