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Mushroomwood originates deep underground in Appalachian coal-country where no-longer-productive coal mines have been converted into mushroom growing facilities. Thousands of board feet of species such as cypress, hemlock and cedar have been used in these facilities to provide growing platforms for the mushrooms. Be sure to check out this interesting summary of the history and uses of Mushroomwood.
If you can work with the variation in thickness of this product, the backside of the Mushroomwood has a really nice looking brown barnwood look.
|Species||Mixed Species. May include Cypress, Cedar, Hemlock, others.|
|Source||Mushroom growing facilities from different locations in North America|
|Metal/Holes||Nails and fasteners are removed or occasionally cut flush or broken off. Weathered Mushroomwood will generally have some nail holes, but few, if any bolt holes. Staining around holes is common.|
|Knots||Unlimited knots; some tight, some fallen out|
|Checking/Cracks||Unlimited as long as board is sound; many boards have dark checking and weathering.|
|Moisture Content/Stability||Air-Dried (usually dry to very dry). Weathered Mushroomwood is generally much more stable and less prone to shrinkage than is green lumber.|
|Standard Dimensions||a) Thickness: 1" (actual: 5/8" to 4/4"); b) Widths: 4", 6" and 8" (other widths may occasionally be available);|
c) Lengths: 1' increments from 4' to 16'.
|Weight||Depending on species mix. Typically, approximately 2.5 pounds per board foot|
|Surfacing||Weathered (degree of weathering varies); face is generally extremely weathered with raised grain, feathered grain and/or very deep weathering in the soft grain of the material. Weathered Mushroomwood colors vary; a range of browns is much more common than grays. Mushroomwood colors generally range from some light browns to primarily darker browns and some gray or black streaks. One of the unique features of Weathered Mushroomwood is the variety of colors found therein. Many boards will have two or more shades of colors. As a result, Trestlewood generally does not offer a color sort which does not allow for some latitude in color provided.|
|Mushroom Spores||Weathered Mushroomwood was originally used in the process to grow mushrooms. It is very likely that the wood came in contact with mushrooms and their spores. It is possible that spores still exist on the wood and that the spores would grow if installed in a moist environment. It is important that mushroomwood not be installed into a moist environment, including the interior of a house that is not properly ventilated.|
|Appearance Variation||Boards can vary in appearance from piece to piece and even within a piece. The characteristics described on this specification sheet generally apply to each board's featured face. The opposite face and edges can differ from the featured face in texture, coloring, and other characteristics unless otherwise noted. Weathered lumber / barnwood will have at least one weathered face. The opposite face and edges can be any combination of weathered and fresh-sawn. If weathered, the weathering will often be different (amount, mix of colors, etc) than on the featured face.|
Trestlewood sometimes uses one or more "juicing" processes to help fresh-sawn and/or less weathered/aged faces/edges blend in with weathered faces/edges. All else being equal, juicing is more likely to be used in situations where (a) lumber is cut from timbers or wider lumber (thereby creating fresh-cut faces and/or edges); (b) Buyer wants all (or most) faces/edges to be weathered/aged; and/or (c) Buyer desires to increase the consistency of the weathered/aged look from face to face.
|Other||Weathered Mushroomwood can be very brittle and may split easily. Special care, such as pre-drilling holes for nails, is advisable.|