OSB panels are available in a variety of thicknesses and sizes as shown in Table 1.
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Table 1: OSB – Thicknesses and Weights |
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OSB (O325) |
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Thickness |
1220 x 2440mm (4’ x 8’) |
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Panel Weight |
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mm. |
in. |
kg |
lb. |
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9.5 |
3/8 |
18 |
40 |
|
11 |
7/16 |
21 |
46 |
|
12 |
15/32 |
23 |
50 |
|
15 |
19/32 |
29 |
63 |
|
18 |
23/32 |
34 |
76 |
|
22 |
7/8 |
42 |
92 |
|
28.5 |
1-1/8 |
54 |
120 |
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Notes: 1.weight calculated on the basis of 640 kg/m^3 (40 lbs/cu.ft.) density and nominal thickness. 2.15 mm (19/32 inch) thick and thicker are available in either square-edged or tongue-and-groove on the long edges. 3.thicknesses are available on special order. |
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The most common panel size is 1220 x 2440mm (4' x 8'). Panels can also be made to a metric size of 1200 x 2400mm. Panels may be specially ordered up to 2440 x 7320mm (4' x 24'). Larger panel sizes are desired by the manufacturers of wood I-joists because the long lengths reduce the need for web splicing.
Sizes smaller than the standard size can also be specially ordered.
Thicknesses are available from 6mm (1/4") to 28.5mm (1-1/8").
Panels may be sanded on one or both faces on special order.
Canadian Wood Council Members
