The invention relates to a gluing press used for sheet-shaped timber and a method used for extruding the sheet-shaped timber. Each timber sheet is glued at the longitudinal side and extruded oppositely and mutually. Because plates to be made of the timber are provided with different width and thickness, the changeover of the gluing press is troublesome and time-consuming. Due to the limitation ofthe clamping travel for extruding an air cylinder, the width of the plates is also possibly limited. In order to manufacture plates of different width and / or thickness in a simple method and at a low price, blocking plates used for the timber can be moved to the direction of an extruding device, therefore the extruding device only requires a minor travel so as to apply the extrusion force on the timber. The width of the blocking plates can be simply and quickly adjusted to extremely different plate width. The timber is positioned in the horizontal direction and the longitudinal direction and extruded by using a force generated from a pressure medium. The gluing press is used for manufacturing plates and long strip timber with sheet-shaped solid material.