A 20-foot 2x12 piece of construction-grade lumber typically weighs 80.00 pounds. This weight refers to a specific type of lumber, commonly used in framing for its strength and spanning capabilities.
Detailed Specifications of a 2x12x20' Board
The term "2x12" refers to the nominal dimensions of the lumber, meaning its size before it is planed smooth at the mill. For a board of this size and grade, the weight is a critical factor for transportation, handling, and structural calculations in construction projects.
Here's a breakdown of the typical specifications for a 2x12x20' #2 Construction Grade board:
| Attribute | Value |
|---|---|
| Weight | 80.00 lbs |
| Species/Grade | #2 Construction Grade |
| Nominal Thickness | 2" |
| Nominal Width | 12" |
| Length | 20' |
Factors Influencing Lumber Weight
While the specified weight provides a precise figure for a standard 2x12x20' #2 construction grade board, the actual weight of lumber can sometimes vary slightly due to several factors:
- Moisture Content: Lumber absorbs and releases moisture, and its weight changes accordingly. Drier wood is lighter, while wood with higher moisture content will be heavier. Lumber sold for construction typically has a specific moisture content to ensure stability.
- Wood Species: Different wood species have varying densities. Even within a grade like "construction grade," which often includes various species like Southern Yellow Pine or Douglas Fir, slight density differences can occur.
- Milling Variations: Minor differences in actual dimensions due to milling tolerances can also impact the overall weight, although these are usually minimal.
Understanding these factors helps in appreciating why specific weight figures are provided for standard products, while real-world conditions might introduce slight variations. This specific 80.00-pound weight is a reliable figure for planning purposes.
