Standard sizes: thicknesses, widths and lengths

Standard sizes: thicknesses, widths and lengths

Dimensions mean nominal sizes with the moisture content of the sawn timber at 20%.

The most common lengths vary between 2.7 m and 5.4 m in steps of 300 mm. Other lengths and modules must be agreed separately. Thickness and width dimensions mean the nominal sizes of the timber at a moisture content of 20%.

The standard measurements of sawn, dimensioned and all-round planed timber are shown in the following tables:

MOST COMMON CROSS-SECTIONAL DIMENSIONS FOR SAWN TIMBER

THICKNESS (mm)

WIDTH (mm)

50

75

100

125

150

175

200

225

250

19 1)

 

 

X

O

O

 

 

 

 

22 2)

JH X

JH X

X

X

X

O

O

 

 

25 1)

O

O

X

O

O

O

O

O

 

32

 

O

X

O

O

O

O

O

 

38

 

 

X

X

O

O

O

O

 

44 2)

 

 

O

O

O

O

O

O

O

50

 

JH X

X

X

X

X

X

O

 

63

 

 

O

O

O

O

O

O

 

75

 

JH O

O

O

O

O

X

X

 

100

 

 

X

O

O

O

O

O

 

125

 

 

 

X

 

 

 

 

 

150

 

 

 

 

X

 

 

 

 

1) usually pine

2) usually spruce

JH = usually done by splitting afterwards, whereby the width is 2 mm less that the nominal size

x =standard size

o = rarely produced size

MOST COMMON CROSS-SECTIONAL DIMENSIONS FOR DIMENSIONED SAWN TIMBER

THICKNESS (mm)

WIDTH (mm)

 

48

66

73

95

98

120

123

145

148

173

198

223

248

20 1)

 

 

 

X

 

X

 

X

 

 

 

 

 

42

 

X

O

 

O

 

O

 

O

O

O

O

 

48

X

 

X

 

X

 

X

 

X

X

X

X

O

1) finely-sawn surface

x = standard size

o = rarely produced size

MOST COMMON CROSS-SECTIONAL DIMENSIONS FOR ALL-ROUND PLANED SAWN TIMBER

THICKNESS (mm)

WIDTH (mm)

 

15

21

28

33

45

70

95

120

145

170

195

8

 

X

 

X

X

X

X

 

 

 

 

12

 

 

 

X

X

X

X

 

 

 

 

15 1)

X

 

 

X

X

X

X

X

X

O

 

18 2)

 

 

 

 

X

O

X

X

X

O

O

211)

 

X

 

 

X

X

X

X

X

X

X

28

 

 

X

 

X

 

X

O

O

 

 

33

 

O

 

X

X

X

X

O

O

 

 

45

 

 

 

X

X

X

X

X

X

O

X

70

 

 

 

 

 

X

 

 

O

 

O

1) usually pine

2) usually spruce

x = standard size

o = rarely produced size