What Size Header For A 20-Foot Span: A Quick Guide

To determine the appropriate column size for a 20-foot span between two columns in a typical residential hall building with standard 5-inch walls, we can follow a general guideline. In this scenario, assuming the use of M20 grade concrete, the recommended dimensions for an RCC (Reinforced Concrete Column) would be 12 inches by 18 inches (300mm x 450mm). To provide adequate strength and support, this column should include four 16mm Fe500 steel bars and six 12mm Fe500 steel bars. Additionally, it should have stirrups spaced at 6 inches, using T8 bars. This information can help ensure the structural integrity of the building, particularly in instances with a 20-foot span between columns. [Date: 12th December 2021] #construction #buildingdesign #structuralengineering

To determine the appropriate Laminated Veneer Lumber (LVL) beam size for a 20-foot span, you’ll need a beam that is at least 12 inches thick and measures 3-1/2 inches in width by 11-7/8 inches in height. This sizing recommendation is applicable for spans up to 20 feet, as of June 12, 2023. Choosing the right size LVL beam is crucial for ensuring structural integrity and support over this specific span length.