1. LVL AS A CONSTRUCTION MATERIAL Table 1.8. Standard sizes of multiple-glued GLVL beams and panels. GLVL can be manufactured from LVL-P or LVL-C laminas. For structures that are sensitive to dimensional changes due to changing humidity conditions, LVL-C is the most suitable choice. LVL-C beams and panels are usually produced according to customer specifications and their sizes are thus not standardized. The beam heights given in Table 1.7, however, ensure efficient use of material. Other common widths are 900 mm, 1200 mm, 1800 mm and 2500 mm, although the maximum panel width depends on the production line. Standard sizes for LVL-P studs are smaller than beams. Thickness is typically 39 and 45 mm and the width is normally limited to 200 mm. Standard stud sizes for non-load-bearing walls are 39x66 and 39x92 in lengths of 2550 mm, 2700 mm, 3000 mm, 3600 mm and 6000 mm. No pre-cambering: Because LVL members are cut from straight billets, beams cannot be pre-cambered in normal production and pre-cambering should therefore not be included in the design. Larger thicknesses are available as multiple-glued GLVL beams and panels. While standard sizes ensure the most efficient material use, custom sizes of GLVL are also available from GLVL suppliers for project-specific needs, but the availability shall to be checked case by case. LVL 01, Table 1.7 Thickness [mm] Beam height or panel width [mm] 200 220 225 240 260 300 360 450 600 900 1800 (2500) 84 P/C P/C P/C P/C P/C P/C P/C P/C P/C C C C 90 P P P P P P P P P 96 P/C P/C P/C P/C P/C P/C P/C P/C P/C C C C 108 P/C P/C P/C P/C P/C P/C P/C P/C P/C C C C 120 P/C P/C P/C P/C P/C P/C P/C P/C P/C P/C C C 133 P/C P/C P/C P/C P/C P/C P/C P/C P/C P/C C C 144 P/C P/C P/C P/C P/C P/C P/C P/C P/C P/C C C Metsä Wood Figure 1.59. LVL-P wall studs. 1.58. LVL-C panel. Metsä Wood 40 LVL Handbook Europe
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