S3S (Surfaced Three Sides) milled lumber is expertly planed on the top, bottom, and one edge, providing a smooth surface and a straight edge for easier handling and precise joinery. Perfect for projects requiring clean lines and consistent dimensions, S3S lumber is ready to use or customize further. Available in a variety of wood species and sizes, it’s a reliable choice for professional and DIY applications alike.
Dimensional Thermory® Benchmark Ash S4S is surfaced, sanded smooth and straight on all 4 sides, and ready to be made into your own special project.
CLICK HERE TO ORDER A $10.00 SAMPLE in your choice of species that will be credited towards your full order.