According to the Cumming company website, the materials used in construction have increased on an average of at 13.05% across the industry in the past year. The materials with the most increase are lumber and plywood, with an increase of 85.7%. This is followed by cooper brass mill shapes, at an increase of 49%, and steel pipes and tubes, at 24.4% increase. Only a few facets of the industry have had very little impact in pricing, if at all, including AC paving mixtures and blocks, which actually decreased by 2.2%, prestressed concrete products which increased only by .2%, and concrete pie, effected by a small 1.4% increase. Below is a chart detailing this and more