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Technical Calculator

Log Weight Calculator

Recommended by Arborists, the calculator helps you to get accurate weight, volume, and other stack-related calculations for your log/board stock.

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The log weight calculator helps to know how much a log weighs based on its species, wood specifications, and dimensions (length & width). The tool also provides you with the accurate volume of logs, the number of logs/boards that could fit in a stack, and its overall weight.

Calculator Usage Instructions:

The calculator provides results for both “Log” and “Board”.

If you select Log:

  • Select its species
  • Enter the measured diameters & length in designated blanks
  • For stack calculations, enter its maximum height & width

If you select Board:

  • Again, select the species
  • This time, you need to enter board width, thickness, and length
  • For stack, the inputs remain the same as the aforementioned

Formula to Calculate Log Weight:

The first step in calculating log weight is the ‘green’ density. If you know this, then you can use the following formula to get accurate weight output:

Assuming the Log Is Perfect Cylinder:

Weight = ρ_(green) * v

Where;

  • ρ_(green) = Green weight of wood log, measured in lbs/ft^3
  • v = Log volume in terms of ft^3 and is calculated by;

π *(Diameter/2)^2 * Length

  • W = Log weight in pounds

Assuming the Log Is Tapered Cylinder:

Weight = d₁ + d₂ / 2 × (d) × length × Density

  • d_1 = Diameter from the thinner end of the log
  • d_2 = Diameter from the thicker end of the log

How Much Does a Log Weigh?

The weight of the log depends upon four factors that include:

  • Log volume
  • Moisture content
  • Species of wood
  • Density

Where a smaller log/board could be of a few pounds, the larger unit can be of several tons. According to the reference provided by the market survey, a freshly-cut log of wood with an average density weight of about 50 lbs/cu ft. but this figure is not the same for every other species. It is dependent on the density of the wood.

This is why the log weight calculator provides you with real-time results based on the custom dimension and species of the log.

Green Log Weight Chart:

Due to the varying green density, the moisture content in every other tree species is not the same. This can be confirmed by the following wood weight chart that provides the green densities of almost all major tree species around the global market:

Species Density lb/ft³ Species Density lb/ft³
Alder, red 46 Magnolia ev. 59
Apple 55 Maple, red 50
Ash, green 47 Maple, Silver 45
Ash, Oregon 48 Maple, sugar 56
Ash, white 48 Oak, black 62
Aspen, quaking 43 Oak, Cali. black 66
Bald cypress 51 Oak, English 52
Basswood 42 Oak, live 76
Beech 54 Oak, pin 64
Birch, paper 50 Oak, post 63
Birch, Yellow 57 Oak, red 63
Butternut 46 Oak, scarlet 64
Cedar, incense 45 Oak, white 62
Cedar, western red 28 Osage orange 62
Cherry, black 45 Pecan 61
Chestnut 55 Persimmon 63
Chinaberry 50 Pine, loblolly 53
Cottonwood 49 Pine, lodgepole 39
Elm, American 54 Pine, longleaf 55
Fir, Douglas 39 Pine, ponderosa 46
Fir, noble 29 Pine, slash 58
Fir, white 47 Pine, sugar 52
Gum, black 45 Pine, white 36
Gum, red 50 Poplar, Yellow 38
Hackberry 50 Redwood coastal 50
Hemlock eastern 49 Sassafras 44
Hemlock western 41 Spruce, Red 34
Hickory Shagbark 64 Spruce, Sitka 32
Honey locust 63 Sweetgum 55
Horse chestnut 41 Sycamore 52
Larch 51 Tamarack 47
Locust, black 58 Walnut, black 58
Locust, honey 61 Willow 32

Which Type of Wood Is Best for Outdoor Furniture?

Out of the best natural wood materials, Ipe and Teak are the two most widely used wood types for furniture manufacture. Other types include black Locust, Acacia, and California Redwood. All these woods are known for their ultimate durability, beauty, and strictly tested weather resistance.

How Much Does a 10-Foot Oak Log Weigh?

A 10-foot Oak Log will approximately weight about 3,629.3 pounds.