What I’ve done is taken each of the four tests of wood strength (Janka hardness, MOE, MOR, and crushing strength) and found which species were the best and worst in that category, and then use those values as the upper and lower limits. (This is limited to the data I have on hand...
5. Hardness:Relatively soft (Janka scale: 540 lbf) 6. Movement (DCC):Radial: 0.00158, Tangential: 0.00289 7. Modulus of elasticity:1,580,000 lbf/in2 8. General use:One of the best utility woods out there. It machines very easily with both hand and power tools. It can be used in e...
Tree Size:6-25 ft (2-8 m) tall, 4-8 in (10-20 cm) trunk diameter Average Dried Weight:59 lbs/ft3(945 kg/m3) Specific Gravity (Basic, 12% MC):.74, .95 Janka Hardness:2,350 lbf(10,440 N)* *Estimated hardness based on specific gravity ...
Janka Hardness Scale for Wood Flooring Species The Janka hardness test is a measurement of the force necessary to embed a .444-inch steel ball to half its diameter in wood. It is the industry standard for gauging the ability of various species to tolerate denting and normal wear, as well ...
The relative hardness and softness of various woods isn’t just based on a feeling. Woods are ranked for durability using something called the Janka Hardness Scale. “The Janka Hardness Scale identifies at what point a 11.28-millimeter [0.444-inch] steel ball will embed itself halfway through ...
Moreover, information is lacking on the role of wood hardness in limiting nesting opportunities for this important guild. Here, we used an information theoretic approach to examine the role of wood hardness in multi-scale nest site selection and in limiting nesting opportunities for six species of...
Here is an object that has, to a superlative degree, the aspects that we hold most central to the inorganic world: hardness, toughness, terrific strength, thermal and electrical conductivity. Things you just can’t do with bone and wood. But it’s made out of carbon. It’s something ...
Okoume has a low density, with a mean weight of 25 pounds per cubic foot. It is considered very soft, rendering it unsuitable for use in situations requiring durability, such as flooring. On the Janka scale, a standard measure of wood hardness, Okoume's rating is only 380. This is simil...
1.Maple. Both soft and hard maple make for excellent cutting surfaces. But hard maple (1,450 lbf on the Janka hardness scale) is the industry standard among cutting board makers: It's more scratch- and impact-resistant than beech, teak, or walnut but not so hard that it will dull your...