Lumber - Weights
The density and weight of lumber varies with the water or moisture content in the wood. Typical weights for green, kiln dried and pressure treated lumber boards are indicated in the tables below.
Note that nominal dimensions are not the same as actual lumber dimensions.
Green Lumber Boards
| Weight (lb) | |||||
|---|---|---|---|---|---|
| Nominal Dimension (in x in) | Length (ft) | ||||
| 1 | 8 | 10 | 12 | 16 | |
| 2 x 4 | 1.7 | 13 | 17 | 20 | 27 |
| 4 x 4 | 3.6 | 29 | 36 | 43 | 58 |
| 4 x 6 | 5.4 | 43 | 54 | 65 | 86 |
| 4 x 8 | 7.2 | 58 | 72 | 86 | 115 |
| 4 x 10 | 9 | 72 | 90 | 108 | 144 |
| 4 x 12 | 10.8 | 86 | 108 | 130 | 173 |
| 6 x 6 | 8.1 | 65 | 81 | 97 | 130 |
Drying lumber takes time. Smaller and shorter boards use considerable less time than larger and longer boards. For larger pieces natural drying takes months and often even more than a year - depending on the surrounding temperature, moisture and air circulation. Smaller shorter pieces can dry in weeks.
Kiln Dried Lumber Boards
| Weight (lb) | |||||
|---|---|---|---|---|---|
| Nominal Dimension (in x in) | Length (ft) | ||||
| 1 | 8 | 10 | 12 | 16 | |
| 2 x 4 | 1.3 | 11 | 13 | 16 | 21 |
| 2 x 6 | 2 | 16 | 20 | 24 | 32 |
| 2 x 8 | 2.7 | 21 | 27 | 32 | 43 |
| 2 x 10 | 3.3 | 27 | 33 | 40 | 53 |
| 2 x 12 | 4 | 32 | 40 | 48 | 64 |
- Right click the chart and open in new window for printing
Example - Estimating Shipment Weight of Lumber
The shipment weight of 600 ft 2 x 4 dried lumber can be estimated from the chart to be approximately
800 lb
Pressure Treated Lumber Boards
Pressure treated with chemical preservatives.
| Weight (lb) | |||||
|---|---|---|---|---|---|
| Nominal Dimension (in x in) | Length (ft) | ||||
| 1 | 8 | 10 | 12 | 16 | |
| 2 x 4 | 2.1 | 17 | 21 | 26 | 34 |
| 2 x 6 | 3.2 | 26 | 32 | 38 | 51 |
| 2 x 8 | 4.4 | 35 | 44 | 53 | 70 |
| 2 x 10 | 5.5 | 44 | 55 | 66 | 88 |
| 2 x 12 | 6.6 | 53 | 66 | 79 | 106 |
| 4 x 4 | 4.8 | 38 | 48 | 58 | 77 |
| 4 x 6 | 7 | 56 | 70 | 84 | 112 |
| 4 x 8 | 9.3 | 75 | 93 | 112 | 149 |
| 4 x10 | 11.7 | 93 | 117 | 140 | 187 |
| 4 x 12 | 14 | 112 | 140 | 168 | 224 |
- Right click the chart and open in new window for printing
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