Sizes

Sizes of Western Red Cedar Fence Posts
The most common sizes of fence posts are 4x4 in. and
6x6 in. either rough sawn or dressed (see below).
| Nominal
Size
(inches) | Full Sawn
Rough
(inches) | Standard
Swan Rough
(inches) | Actual
Dressed Size
(inches) |
| 4 | 4 | 3-3/4 | 3-9/16 |
| 6 | 6 | 5-3/4 | 5-9/16 |
Sizes of Western Red Cedar Fence Rails
The most common sizes of cedar fence rails are 2x4 in.
and 2x6 in. (See below).
| Thickness (inches) |
| Nominal | Full Sawn | Standard Sawn Rough | Dressed S4S |
| 2 | 2 | 1-3/4 | 1-9/16 |
| Width (inches) |
| Nominal | Full Sawn | Standard Sawn Rough | Dressed S4S |
| 4 | 4 | 3-3/4 | 3-9/16 |
| 6 | 6 | 5-3/4 | 3-9/16 |
Sizes of Western Red Cedar Fence Boards
| Thickness (inches) |
| Nominal | Full Sawn Rough | Standard Sawn Rough | Dressed S4S |
| 1 | 5/8 | 11/16 | 23/32 |
| | 11/16 | | |
| | 23/32 | | |
| | 34 | | |
| | 13/16 | | |
| 5/4 | 1-1/16 | 1 | 1 |
| Width (inches) |
| Nominal | Rough | Dressed | Length (ft.) |
| 2 | 2 | 1-9/16 | 3 |
| 3 | 3 | 2-9/16 | 4 |
| 4 | 4 | 3-9/16 | 5 |
| 6 | 6 | 5-9/16 | 6 |
| 8 | 8 | 7-3/8 | 8 |
| 10 | 10 | 9-3/8 | |
| 12 | 12 | 11-3/8 | |