4/4 Ash Lumber – Kiln Dried S4S Hardwood Boards
Our 4/4 Ash lumber is a strong, versatile hardwood with a light natural color, prominent grain, and excellent workability. Each board is kiln-dried, planed and sanded smooth, and straight-lined on both edges for clean, square stock.
Ash is a popular choice for furniture, cabinetry, shelving, drawer boxes, panels, frames, tool handles, and a wide range of woodworking projects.
Product Details
Species: Ash
Thickness: 4/4 nominal, surfaced to approximately 7/8"
Widths: 3"–7"
Lengths: 12"–42"
Edges: Straight-lined and square
Surfacing: Planed and sanded smooth
Drying: Kiln-dried to approximately 6–8% moisture content
Width Tolerance: ±1/16"
Length Tolerance: ±1/2"
Great For
-Furniture
-Tables and desks
-Cabinetry
-Drawer boxes
-Shelving
-Panels
-Frames
-Built-ins
-General woodworking
-DIY furniture projects
-Tool handles
-Custom woodworking
Natural Character
Ash typically has a light tan to pale brown appearance with a bold, open grain pattern. It accepts stains and finishes well, making it a versatile choice when you want the grain to remain visually prominent.
Natural variation may include mineral streaks, small knots, and differences in grain or color. These are normal characteristics of genuine hardwood.
Milling and Size Notes
Boards are milled square and straight, but slight variation can occur because wood is a natural material.
Boards may be slightly over length to allow for final trimming. Widths are milled to the listed size and may vary slightly within the stated tolerance.
The finished thickness is approximately 7/8" after surfacing and sanding.
Wood Movement and Acclimation
Solid wood naturally expands and contracts as humidity changes. We recommend allowing your boards to acclimate to your shop or installation environment before final milling or installation.
Finishing
Ash works well with a variety of finishes, including oil finishes, polyurethane, hard-wax oils, and wood stains.
For the best result, test your chosen finish on an offcut before applying it to your finished project.
Custom Orders
Need specific widths, lengths, matched boards, or larger quantities?
Send us a message and we’ll do our best to help.
