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580 kg/m 3: 980 lb/cu yd Central India, South India: It can be easily worked and is strong and durable especially when used under water. It is used for such products as furniture, carriage, well curbs, yokes, and door panels. Hopea Hopea parviflora: Light to deep brown 1,010 kg/m 3: 1,700 lb/cu yd Madras, Kerala Hopea is extremely strong and tough.
The board foot or board-foot is a unit of measurement for the volume of lumber in the United States and Canada. [1] It equals the volume of a board that is one foot (30.5 cm) in length, one foot in width, and one inch (2.54 cm) in thickness, or exactly 2.359 737 216 liters.
Jeffrey pine wood and ponderosa pine wood are sold together as yellow pine. [6] Both kinds of wood are hard (with a Janka hardness of 550 lbf (2,400 N)), but the western yellow pine wood is less dense than southern yellow pine wood (28 lb/cu ft (0.45 g/cm 3 ) versus 35 lb/cu ft (0.56 g/cm 3 ) for shortleaf pine).
Lumber’s price drop has been particularly dramatic in just the last 90 days in the futures market, with contract prices for July falling 28% to $466 per thousand board feet (futures prices are ...
Treated pilings are available in chromated copper arsenate retentions of 0.60, 0.80 and 2.50 pounds per cubic foot (9.6, 12.8 and 40.0 kg/m 3) if treatment is required. Historical Chinese construction
Its wood has an average crush strength of 8,140 lb/in 2 (56.1 MPa), which exceeds many hardwoods such as white ash (7,410 lb/in 2) and black maple (6,680 lb/in 2). It is not as strong as black ironwood (9,940 lb/in 2 ), but because its average density is less than half that of ironwood, slash pine has a far greater strength-to-weight ratio.
Wood is relatively light in weight, because its specific weight is less than 500 kg/m 3, this is an advantage, when compared against 2,000–2,500 kg/m 3 for reinforced concrete or 7,800 kg/m 3 for steel. [citation needed] Wood is strong, because the efficiency of wood for structural purposes has qualities that are similar to steel. [citation ...
The density of softwoods ranges from 350 kg/m 3 to 700 kg/m 3, while hardwoods are 450 kg/m 3 to 1250 kg/m 3. Once dried, both consist of approximately 12% of moisture ( Desch and Dinwoodie, 1996 ). Because of hardwood's denser and more complex structure, its permeability is much less than that of softwood, making it more difficult to dry.