用英寸做木工项目？请仔细阅读本节！
首先，按英寸规划的项目
假设您想建造一张野餐桌，使用英寸标定的木材，例如经典的2"x4"。
但木材的标称尺寸并非实际尺寸
没错！2"x4"是公称尺寸，不是实际尺寸：您的木材实际截面只有1-1/2"x3-1/2"。
Woodself提供哪些尺寸？
Woodself在所有图纸中给出实际尺寸。
更准确地说：若您需要一根1-1/2"x3-1/2"x12"（实际）的梁，您必须购买一根12"长（公称）的2"x4"材。很简单，不是吗？
小结
请参照下表：其中列出了与公称尺寸对应的实际尺寸。
| 公称 | 实际 |
|---|---|
| 1" x 2" | 3/4" x 1-1/2" |
| 1" x 3" | 3/4" x 2-1/2" |
| 1" x 4" | 3/4" x 3-1/2" |
| 1" x 5" | 3/4" x 4-1/2" |
| 1" x 6" | 3/4" x 5-1/2" |
| 1" x 7" | 3/4" x 6-1/4" |
| 1" x 8" | 3/4" x 7-1/4" |
| 1" x 10" | 3/4" x 9-1/4" |
| 1" x 12" | 3/4" x 11-1/4" |
| 1-1/4" x 4" | 1" x 3-1/2" |
| 1-1/4" x 6" | 1" x 5-1/2" |
| 1-1/4" x 8" | 1" x 7-1/4" |
| 1-1/4" x 10" | 1" x 9-1/4" |
| 1-1/4" x 12" | 1" x 11-1/4" |
| 1-1/2" x 4" | 1-1/4" x 3-1/2" |
| 1-1/2" x 6" | 1-1/4" x 5-1/2" |
| 1-1/2" x 8" | 1" x 9-1/4" |
| 1-1/2" x 10" | 1-1/4" x 9-1/4" |
| 1-1/2" x 12" | 1-1/4" x 11-1/4" |
| 2" x 4" | 1-1/2" x 3-1/2" |
| 2" x 6" | 1-1/2" x 5-1/2" |
| 2" x 8" | 1-1/2" x 7-1/4" |
| 2" x 10" | 1-1/2" x 9-1/4" |
| 2" x 12" | 1-1/2" x 11-1/4" |
| 3" x 6" | 2-1/2" x 5-1/2" |
| 4" x 4" | 3-1/2" x 3-1/2" |
| 4" x 6" | 3-1/2" x 5-1/2" |
