1. LVL AS A CONSTRUCTION MATERIAL Table 1.11. Basic mechanical properties of common LVL strength classes. Table 1.12. Basic mechanical properties of common structural wood products. LVL 01, Table 1.10 Sawn timber C18 (EN 338:2016) Glulam GL24h (EN 14080:2013) Spruce plywood 21 mm 17 Typical use Beam / stud Beam Panel Characteristic strength values, N/mm2 Bending strength fm,0,k 18 24 20,6 Bending strength flatwise perpendicular to grain fm,90,flat,k - - 12,8 Compression perpendicular to grain fc,90,k 2,2 2,5 - Shear parallel to grain fv,k 3,4 3,5 3,5 Mean stiffness values, N/mm2 Modulus of elasticity parallel to grain E0,mean 9000 11500 8230 Modulus of elasticity perpendicular to grain in bending Em,90,mean - - 3770 Density, kg/m3 Mean value ρmean 380 420 460 Characteristic value ρk 320 385 400 Table 1.11 LVL 48 P LVL 32 P LVL 36 C LVL 25 C Typical use Beam Stud Panel Panel Characteristic strength values, N/mm2 Bending strength edgewise, h = 300 mm fm,0,edge,k 44 27 32 20 Bending strength flatwise fm,0,flat,k 48 32 36 25 Bending strength flatwise perpendicular to grain fm,90,flat,k - - 8 - Compression parallel to grain fc,0,k 29 21 21 15 Compression perpendicular to grain edgewise fc,90,edge,k 6 4 9 8 Tension parallel to grain ft,0,k 35 22 22 15 Shear edgewise parallel to grain fv,edge,0,k 4,2 3,2 4,5 3,6 Shear flatwise parallel to grain fv,flat,0,k 2,3 2,0 1,1 1,1 Size effect parameter s, [-] 0,15 0,15 0,15 0,15 Mean stiffness values, N/mm2 Modulus of elasticity parallel to grain E0,mean 13800 9600 10500 7200 Modulus of elasticity perpendicular to grain in flatwise bending Em,90,mean - - 2000 - Shear modulus edgewise G0,edge,mean 600 500 600 500 Density, kg/m3 Mean value ρmean 510 440 510 440 Characteristic value ρk 480 410 480 410 LVL Handbook Europe 45
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