Solid fibre sheets are constructed by gluing two or more flat plies of paperboard together. Usually, the outer ply is linerboard, and the other piles are corrugating material for filler paperboards. The inner ply also may be linerboard.

Modified corrugators can be used to make solid fibreboard. Usually, however, it is made on less complex machines called pasters, which apply adhesive to the entire surface of each layer.

The board can be scored in the machine direction, cut to diestired widths and cut off to desired lengths, just as corrugated board is on a corrugator.

My using layers with different basis weights, the thickness of the finished material can be changed. Solid fibreboard is ually produced in thickness ranging from 0.045 inches (45 points, or about 3/64ths of an inch) to 0.135 inches (135 points, or a little more than 1/8 inch. For special applications, it can be made as much as ¼ inch thick.