A Formula for Tabulating Lumber for Sawmills

Factors Affecting Pricing

According to the U.S. Department of Agriculture (USDA) Forest Service Southern Research Station, it's difficult to determine the value of timber, due to the multiple factors that influence pricing. Indeed, lumber calculations can be vexing--even for veteran woodworkers. Fortunately, timber websites tcwoods.com and forest2market.com can help you chart calculations, as well as the following tips:

01
Factors Affecting Timber Prices

USA, Montana, Lakeside, lumberjack felling tree
Tetra Images - Noah Clayton / Getty Images

While prices in the state or region reflect the typical rate, local market conditions are more consequential. Case in point: if your timber grows near several mills, it may command a higher price than if it were located further away from those mills.

The value of a timber depends on the species, size and quality of the trees. It also relies on the amount of timber sold in a single sale, as well as the type of harvesting done. Quite often, the larger the sale, the lower the price per unit of wood. Conversely, it's usually more costly to cut down just a few units.

Timber prices also depend on growing conditions, which affect the cost to remove and transport timber to a mill. Variables include the distance from the stand to the nearest road, slope and soil wetness.

02
Investigating Rough Lumber Prices

Workers at the Carson Sawmill prepare wood
Bruce Bennett / Getty Images

To research lumber prices, contact your state service forester, who works with the state Department of Natural Resources Division of Forestry or Forestry Commission. Also visit the National Association of State Forester's website, which can link you to state service forestry agencies. Contact your county Agricultural Service agent or Forestry Extension staff--typically located at your state's Land Grant university, in the Forestry Department. Finally, consult the USDA Cooperative Extension System for forestry assistance.

Sample Calculation: Say you wish to determine timber prices for red oak on the stump. You call area sawmills and determine the average price for red oak grade lumber is $800 per thousand board feet (bf). You also learn that harvesting cost is $100 per thousand bf, trucking is $100 per thousand bf, and milling is $250 per thousand bf. You then take the $800 and subtract $450 in costs, to arrive at $350 per thousand board feet.

03
Calculating a Profit

Laughing bearded man sitting on stack of wood
Westend61 / Getty Images

Before offering $350 per thousand for standing red oak, factor in profit, by adding 50% to 70% to your cost figure. For example ($450 x 1.5 = $675 per thousand bf) or ($450 x 1.7 = $765 per thousand bf). Therefore, the price range you can pay for red oak on the stump is $35 to $125 per thousand board feet, based on your cost figures.

 

04
What Drives Calculations?

Woman using a calculator

 

krisanapong detraphiphat / Getty Images

Many considerations go into calculating the value of a log, from the mill’s perspective, which factors in total revenue, variable costs, and fixed costs, in order to determine net return. The Forest2Market website offers sample calculations that break down the numbers, which are generally driven by the following factors:

Finished Products (Lumber): By-products, residual chips, shavings, sawdust, bark/hog fuel.

Variable Costs: Log cost, log yard (inventory) cost, sawmill operating costs, labor, drying, planning, shipping, maintenance cost.

Fixed Costs: General and administrative costs, log procurement (staff), sales/staff, depreciation, interest, corporate fees.

The tcwoods.com website also explores calculations based on different thickness, widths, and lengths of lumber.

Starting out Small

Determining timber prices can be a complicated process. It may be best to start off buying your logs from a logger who will give you a price for the logs you need shipped directly to your mill.
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