The question is simple enough for dry wood, but more difficult to when freshly cut. Calculating the green weight of wood species penn state extension. Can be brittle, but works, glues and finishes well. Material properties material properties for gases, fluids and solids densities, specific heats, viscosities and more. Get free 2day shipping on qualified douglas fir products or buy products today with buy online pick up in store. Anyone with first hand experience with what a board feet of soft wood pine, hemlock weighs and what a board feet of oak weighs using international rule or scribner works out to be. Equations are given for estimating merchantable volumes of secondgrowth douglas fir stands to specified breast high and top diameter limits, in cubic feet or board feet, from total volume in cubic feet and certain associated stand characteristics. This is a measure of a woods weight in relation to a preset volume. Lengths are not listed due to varying stock, please add to cart to receive an official quote from our sales team. Calculate the merchantable volume of a log using the international 14, doyle or scribner log rules. Strength red spruce, longleaf pine and douglas fir moisture content and. Strength red spruce, longleaf pine and douglas fir moisture content and their. Use the ratio of dry weight green weight to calculate the dry weight of a known standing tree. Board feet chart and calculator board feet volume measurement of lumber.
Calculate the weight of lumber and hardwood given the size of the boards or the volume of wood in board feet. What does douglas fir weight per cubic foot answers. Exposure to excessive moisture for tree sawn and engineered lumber will also temporarily increase the density water log. The weight of pine, green oak, and pressure treated can vary greatly from board to board. That is, the weight of a piece of wood from one area or tree will differ from the same species in the another area. However, a woods weight will also greatly depend on its moisture content mc. Wood varies considerably in weight per constant volume density on a regional level and at the local level. In this table, the density of different species of wood is expressed as weight in pounds per cubic foot and kilograms per cubic meter. In the metric system, since the weight of a cubic centimetre of pure water is one gram, the density in grams per cubic centimetre has the same numerical value as the specific gravity. Measuring logs board foot log rules in the majority of cases, you sell logs by the board foot. Weights of various woods grown in the united states. Lumber prices the hardwood store skip to main content. The characteristics described on this specification sheet generally apply to each board s featured face.
I need info info to offer the landowner a fair price per ton as this is how it would be sold. Many municipalities across the country short of cash are harvesting trees from city parks to manage their. The average weight of board feet bf of lumber can be calculated for a particular species, by following the procedures below. Measuring timber products harvested from your woodland. Depending upon species we can supply you with dimensional lumber up to 16x16 and lengths up to 40. Convinced there had to be a better way, researchers from the forest products laboratory fpl investigated the use of remote sensing technologies to monitor the structural components of bridges and homes and transmit the findings to the internet cloud for interpretation. Divide the volume in cubic inches by 1,728 to find the volume in cubic feet. If you know the number of board feet replace the default value of with the known quantity, and the result will equal the actual weight for the number of board feet specified. Typical weights for green, kiln dried and pressure treated lumber boards are indicated in the tables below. The following data is standard reference and size data for commercially available lumber within the usa. Douglas fir rustic lumber can also be bandsawn or planed. The weight of wood calculated from board foot volume.
Commercial lumber sizes chart table engineers edge. Quantity in board feet price per board foot about board feet click here for milling options and pricing. Calculate the merchantable volume and green weight of a log. The wood is very stiff and strong for its weight and is among the hardest and heaviest softwoods. Be aware though, there is considerable variation from load to load of the same species.
Table 1 lumber species, board foot weight popular construction grade sizes. The total douglas fir sawtimber stand in the western woods region is estimated at 609 billion board feet. Knowing the weight of lumber or wood can come in handy if you are doing load calculations for a floor or deck. The following table provides the approximate weight per linear foot of the various sizes of. Voluntary product standard ps 2005, american softwood lumber standard. Lumber and hardwood weight calculator inch calculator. These young forests as a rule are even aged, the larger. Wood species moisture content and weight weight of green and airdried fire wood. Calculate the weight of wood from board foot volume, the species basic specific gravity and moisture content of the wood mc%. Typical weights for green, kiln dried and pressure treated lumber boards are indicated in. I did find this chart but the figures seem too high.
Determine the moisture content mc at which the lumber was scaled that is, at which the board foot volume was measured. Board feet chart and calculator board feet volume measurement of. Douglas fir lumber is used for all purposes to which lumber is normally put for residential building, light and heavy construction, woodwork, boxes and crates, industrial usage, poles, ties and in the manufacture of specialty products. Usually its pounds per cubic foot lbsft 3, or in metric units. Ratio of dry weight to green weight for selected tree species. Calculate the green weight of this log using the green combined weight of wood and bark in lbscf value for the species you are calculating for. What is the weight per foot of 4 x 6 douglas fir beam. Pole feet 20 620 564 489 395 329 287 25 846 743 672 522 465 385. If purlins are placed two foot on center, up the slope or run of the roof, the dead load attributed to the purlins can be determined by dividing the weight per lineal foot 1. The wood weighs 31 pounds per cubic foot and specific gravity is 0. The following table provides the approximate weight per linear foot of the various sizes of dimensional, or structural, lumber used in building construction in north america. Boardfoot, cubicfoot, and cubicmeter volume tables. The density or hardness of wood varies by species, and the value. This calculator assumes that it has a fairly high moisture content.
This is due to the abilitv of douglas fir to establish itself by natural means more successfully than any of its associates in open areas following fire or logging. Table 1 provides a list of common lumberwood species and their weights, green, by board foot and common construction grade sizes. The table provides the weight of lumber produced from three commonly used tree species. A green log weight chart shall be available to the crew.
To find the weight per cubic foot when the specific gravity is given, simply multiply by 62. By entering in the diameter and the height, the scaling techniques for international, doyle, and scribner are calculated and shown on the screen. Douglas fir lumber is an untreated natural wood with a 1 better lumber grade. Calculate how much lumber and various types of wood weigh by entering the dimensions of a board or using total board feet. Densities for various wood species measured in kilograms per cubic meter and pounds per cubic foot. It was 220 feet tall, 9 feet across and branch free 80% of its height. Sitka spruce, douglas fir, and southern yellow pine. Douglas fir beams lumber this is not a complete list of items carried in our store. Weights of green, kiln dried and pressure treated lumber boards. Capabilities doug fir s4s dimension for sale wood vendors produces its douglas fir dimensional lumber s4s surfaced for sides from the top grade of clear, vertical grain douglas fir. Department of the interior, national park service sheet rope, knots and climbing. The density and weight of lumber varies with the water or moisture content in the wood. This dimensional lumber is prime quality and can be stained or painted to match your existing decor.
The log rules used to convert log size into board feet. Boards can vary in appearance from piece to piece and even within a piece. If you cant find something you need here, please visit the store or contact us. The table shows the average weight for one cord of wood. Douglas fir was discovered and classified by botanist david douglas in. As well knowing the weight of lumber can be important if you are planning on transporting a load of lumber from the lumber yard to your home, as shown in figure 1. Douglas fir is named after scottish botanist david douglas. Figure out the dimensions of one of the units you wish to weigh say, a nominal 2by12 beam measuring 16 feet long, remembering that a 2by12 is actually 1 12 inches by 11 14 inches. Leaving the board footage value at the default will produce a resulting weight in pounds per board feet.