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2. Janka hardness test - Wikipedia

   en.wikipedia.org/wiki/Janka_hardness_test

   When testing wood in lumber form, the Janka test is always carried out on wood from the tree trunk (known as the heartwood), and the standard sample (according to ASTM D143) is at 12% moisture content and clear of knots. [3] The hardness of wood varies with the direction of the wood grain. Testing on the surface of a plank, perpendicular to the ...

3. Wood flooring - Wikipedia

   en.wikipedia.org/wiki/Wood_flooring

   Wood flooring is a popular feature in many houses. Engineered wood flooring consists of two or more layers of wood adhered together to form a plank. Typically, engineered wood flooring uses a thin layer of a more expensive wood bonded to a core constructed from cheaper wood. The increased stability of engineered wood is achieved by running each ...

4. Hardwood - Wikipedia

   en.wikipedia.org/wiki/Hardwood

   As the name suggests, the wood from these trees is generally harder than that of softwoods, but there are significant exceptions. In both groups there is an enormous variation in actual wood hardness, with the range in density in hardwoods completely including that of softwoods; some hardwoods ( e.g. , balsa ) are softer than most softwoods ...

5. Lumber - Wikipedia

   en.wikipedia.org/wiki/Lumber

   [46] [47] In addition, wood has a significant CO 2 storage capacity, which limits its release. However, when wood is destroyed (naturally or by combustion), all of the previously stored CO 2 is released into the atmosphere. [48] Natural insulation: lumber is a natural insulator which makes it particularly good for windows and doors.

6. Thermally modified wood - Wikipedia

   en.wikipedia.org/wiki/Thermally_modified_wood

   Thermally modified wood is engineered wood that has been modified by a controlled pyrolysis process of wood being heated to (> 180 °C) in an oxygen free atmosphere. This process changes to the chemical structures of wood's cell wall components lignin , cellulose and hemicellulose which decreases its hygroscopy and thus increases dimensional ...

7. Is Wood Ash Good for the Garden? 5 Tips for Using This ... - AOL

   www.aol.com/lifestyle/wood-ash-good-garden-5...

   Find out if wood ash is good for the garden and how to use it effectively to fertilize plants. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ...