A method for dosing, one by one, pieces of sawn timber arriving in a transversal position on a feed conveyor so that they are consecutively delivered at fixed intervals onto a second conveyor, the method comprising the use of supporting arms moved synchronously with the second conveyor along a closed path between the feed and second conveyors. The method is particularly characterized in that pressing pieces separate from the supporting arms are employed, these pressing pieces moving synchronously with the supporting arms between the feed and second conveyors along a closed path and being guided to adhere to this path; said pressing pieces further being released or positively guided to descend on the piece of timber arriving at the dosage point, in a region having a breadth measured from the stop arresting said piece of timber which is smaller than the width of the narrowest piece of timber expected to be handled; and said pressing pieces clamping the pieces of sawn timber against the supporting arms for the duration of the dosage operation, thereby enabling dosage to be carried out even at high speeds.