Table 4. Standard lumber lengths (U.S.) conversions

Massachusetts Forest Products Association

Actual (ft) to
Metric (m)
Metric (m) to
Actual (ft)
6
1.83
2
6.56
8
2.44
2.50
8.20
10
3.05
3
9.84
12
3.66
3.50
11.48
14
4.27
4
13.12
16
4.88
4.50
14.76
18
5.49
5
16.40
20
6.10
5.50
18.04
22
6.71
6
19.68
24
7.32
6.50
21.32


7
22.96

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