S4S means this hardwood has been surfaced on all four sides. This board has a cleaner appearance than S2S1E.
Classic American Hardwoods, Investing In Themselves, Their Customers And The Future
2 Pack 3/4 x 4 x 12 S4S Curly Soft Maple lumber
S4S Hardwood Bundle Bloodwood, Wenge & Birdseye Hard Maple Perfect for Cutting Boards Twelve 12 Pieces 24L X 1.75W X 0.75T
Poplar S4S hardwood is stocked in 2 thicknesses in widths from 4 to 12. Clean dressed on all four sides with square edges. Lengths can vary and sold
Poplar Hardwood S4S | Capitol City Lumber
Zebrawood Hardwood S4S
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Padauk Hardwoods S4S