Surfaced on Four Sides.

S4S is the abbreviation for lumber that has been surfaced on four sides. When a board is surfaced, it has been milled through a joiner or a plainer, making rough lumber smooth and square. S4S is great for projects where all four sides of the wood will be seen, like in

  • fences
  • decorative railings
  • furniture
  • carved wood projects
S4S Moulding

We're Your S4S Lumber Manufacturer

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Our Capabilities

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