What size LVL beam do I need to span 28 feet | LVL beam size for a 28 foot span
@HelloSirJi What size LVL do i need to span 28 feet | LVL beam size for a 28 foot span
The size of Laminated Veneer Lumber (LVL) needed to span 28 feet depends on several factors including the load it needs to support, the spacing of the supports, and the specific design requirements.
The size of the LVL (Laminated Veneer Lumber) needed to span 28 feet should be 14 inches deep and 3-1/2 inches wide. So, you would need something like 3-1/2" × 14" size of LVL or engineered wood beam for a 28 foot span.
Here's general guideline and LVL span rules of thumb for sizing LVL beams
1. Estimate Width: A LVL beam width need to be 1/4 to 1/3 depth of the beam. Design a LVL beam width based on fact that 1-ply of 1-3/4 inches thick and the width can be increased by laminating in multiples of 1-3/4 inches.
2. Estimate Depth: A LVL beam depth need to be 1/24th of span of beam in inches or 0.50 inches depth per foot of span. Beam depths are typically 5 1/2 inches, 7 1/4 inches, 9 1/4 inches, 11 1/4 inches, 11 7/8 inches, 14 inches, 16 inches, 18 inches, and 20 inches.
For example, If span of the LVL beam is 28 feet in length, then depth of the LVL beam = (28 × 12) ÷ 24 = 14-inches, so, you'd need something like 3-1/2″ × 14″ size of LVL beam for a 28 foot span.
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