| LENGTHS |
|
Lumber sizes are
stocked in 24’ lengths. Larger timbers, particularly for marine construction,
are manufactured to order in virtually any transportable length. Cross
sections include:
|
|
SIZES |
|
Nominal Size
(Inches)
|
Actual Size
(Inches)
|
|
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
1/2"
|
|
2 x 10
|
1 1/2" x 9
1/4"
|
|
2 x 10 tongue
& groove
|
1 1/2" x 9
1/4"
|
|
2 x 12
|
1 1/2" x 11
1/2"
|
|
3 x 10
|
2 1/2" x 9
1/4"
|
|
3 x 10 tongue
& groove
|
2 1/2" x 9
1/4"
|
|
4 x 4
|
3 1/2" x 3
1/2"
|
|
4 x 6
|
3 1/2" x 5
1/2"
|
|
6 x 6
|
5 1/2" x 5
1/2"
|
|
10" round
|
10" diameter
|
|
10 x 10
|
9 1/2" x 9
1/2"
|
|
8 x 8 Board
|
Special Orders
|
|
| |
 |
| DIMENSIONAL
TOLERANCES |
| TriMax lumber
is trimmed square on both ends to uniform lengths with a manufacturing
tolerance of +2" / -0" at a temperature of 70° F. Cup is the deviation
in the face of a piece from a straight line drawn from edge to edge
of the piece; it is measured at the point of greatest distance. Cup
tolerances are as follows: |
| |
|
Face Width
|
4"
|
6"
|
10"
|
12"
|
|
Tolerance
|
1/16"
|
1/8"
|
1/4"
|
3/8"
|
|
| |
| CROOK TOLERANCES
|
| Crook is the
deviation edgewise from a straight line drawn from edge to edge of
the piece; it is measured at the point of greatest distance from a
straight line. Crook tolerances follow Southern Pine Inspection Bureau
Tolerance Tables, and are as follows: |
| |
|
Length In Feet
|
4" width
|
6" width
|
10" width
|
12" width
|
|
4 - 6
|
3/8"
|
1/4"
|
1/8"
|
1/8"
|
|
8
|
1/2"
|
1/2"
|
1/4"
|
3/16"
|
|
10
|
3/4"
|
5/8"
|
7/16"
|
3/8"
|
|
12
|
1"
|
7/8"
|
3/4"
|
9/16"
|
|
14
|
1 1/4"
|
1 1/8"
|
7/8"
|
3/4"
|
|
16
|
1 1/2"
|
1 3/8"
|
1"
|
7/8"
|
|
18
|
1 5/8"
|
1 1/2"
|
1 1/8"
|
1"
|
|
20
|
2 1/16"
|
1 7/8"
|
1 5/16"
|
1 1/8"
|
|
22
|
2 7/16"
|
2 1/4"
|
1 1/2"
|
1 1/4"
|
|
24
|
2 3/4"
|
2 5/8"
|
1 7/8"
|
1 5/8"
|
|
>24
|
Proportionately
Larger
|
|
