9. CALCULATION EXAMPLES OF LVL STRUCTURES Geometry requirements: Product type lv lA hro and hru a hd LVL-P 300 mm+45 mm ≥ h, OK 300 mm+45 mm/2 ≥ 0,5h, OK (240 mm-60 mm)/2 ≥ 0,35h, OK 140 mm ≤ 2,5hd, OK 60 mm > 0,15h, Not OK LVL-C 300 mm+45 mm ≥ h, OK 300 mm+45 mm/2 ≥ 0,5h, OK (240 mm-60 mm)/2 ≥ 0,25h, OK 140 mm ≤ 2,5hd, OK 60 mm ≤ 0,4h, OK 9.9 HOLE IN LVL BEAM A residential floor joist of the example 9.1 needs a 60x140 mm rectangular hole for service installations located at the centreline of the cross-section of the joists 300 mm from the edge of the support. The hole corners have r = 20 mm rounding’s. Corner roundings r = 20 mm > 15 mm, OK →LVL-C type joist is needed to fulfil the requirement of the maximum hole depth hd. 206 LVL Handbook Europe
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