Wood and Log Volume Conversion Factors Southern Averages (Use for approximations only) Approximate Weight Conversions One standard cord of pine pulpwood (128 cubic feet) = 5,350 pounds (range: 4,700 - 5550) or 2.675 tons
One standard cord of hardwood pulpwood (128 cubic feet) =
5,800 pounds (range:5,400 - 6,075) or 2.90 tons
One thousand board feet of pine sawtimber (Scribner ) =
15,000 pounds (range:14,000-18,000 lbs.) or 7.5 tons
One thousand board feet of hardwood sawtimber (Doyle) =
17,500 pounds (range:15,000-19,000 lbs.) or 8.75 tons
One cord of chips weighs approximately 2.5 tons or 5,000 pounds
One MBF, lumber scale, yields 1.20 tons, green chips
One MBF, Doyle scale, yields 1.60 tons, green chips
The ratio of pine pulpwood to pine sawtimber weight is 2.8 cords to 1 mbf
The ratio of hardwood pulpwood to hardwood sawtimber weight is 3.0 cords to 1 mbf
Approximate Cubic Foot Conversions
1 Standard Cord = 128 cubic feet of stacked volume
1 Solid Content Cord = 80 cubic feet of solid wood and bark (range: 60 - 95)
1 cunit = 100 cubic feet of solid wood
1 thousand board feet (mbf) = 183 cubic feet (range: 160 to 220)
A factor of 5.5 board feet per cubic foot is recommended for general use
A factor of 6.0 board feet per cubic foot for chip-n-saw
Board foot/cubic foot relationships of 5:1 or 6:1 are recommended for rough conversions
A cubic meter contains 35.3 cubic feet
Approximate Log Rule Conversions
Convert Scribner to Doyle ...Multiply by .72 Convert International to Doyle ...Multiply by .63
Convert Doyle to Scribner...Multiply by 1.39 Convert Doyle to International...Multiply by 1.60
Convert Scribner to International...Multiply by 1.14
Convert International to Scribner...Multiply by .875
Approximate Cord to Board Foot Conversions
One thousand board feet of Pine = 2.8 cords
One thousand board feet of Hardwood = 3.0 cords
One cord of softwood = 415 board feet
One cord of hardwood = 420 board feet
Approximate Pieces
One cord of softwood = 135 posts
One cord of hardwood = 130 posts
One pole = 145 board feet or 26 cubic feet (class 4-45)
One pallet = 20 board feet
One skid = 70 board feet
One handle blank = 1.8 board feet
60 whiskey barrel staves = one cord
1.25 square feet veneer = one board feet
One mine or cross tie = 45 board feet
One switch tie = 60 board feet
Sources:
Forest Measurments Definitions:
Converting Factors for Southern Pine Products Standard Cord = 4'x4'x8' rick of wood including air space and bark
Service Foresters Handbook Board Foot = 1"x12"x1' plank
Timber Mart-South, Inc. MBF = one thousand board feet
Log Rule = a method of determining the net yield of a log
Cubic Foot = a 12"x12"x12" solid cube