Tri-State Lumber manufactures and pressure treats lumber for your bulkhead, retaining wall, and sound wall needs in either a smooth surface (S4S) or rough sawn. Our wall barriers are typically designed to reduce the combination of diffracted and transmitted highway noise by at least 10 decibels in neighborhoods adjacent to high-traffic roads.
Some of our Southern Pine noise wall barriers range from 14 to 28 feet high and are constructed of horizontal 2 x 8 tongue and groove Southern Pine planks, in sections from 10 to 14 feet wide. Others are built of glued laminated Southern Pine timbers, often assembled into vertical sections. The treated solid-sawn Southern Pine lumber is kiln-dried after treatment.