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)
THICKNESS (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