First Floor RCC Beam Layout Drawing With Structural Grid Details

This AutoCAD drawing illustrates a detailed first-floor beam layout prepared on a structural grid system with clear reference lines marked from A to N and grid numbers from 1 to 9. The drawing shows systematic placement of reinforced concrete beams with uniform beam sizes mainly specified as 200x400 mm and selected beams noted as 200x300 mm where required. Each beam is individually tagged from Beam 1 to Beam 22, ensuring easy identification during construction and coordination. The layout is presented at a scale of 1:125, allowing accurate interpretation of spacing, alignment, and connectivity between beams and columns across the entire floor plate.

The file also includes structural notes defining concrete grade with a minimum 25 N per square millimetre compressive strength at 28 days and reinforcement specifications using high-yield steel bars exceeding 500 N per square millimetre. Minimum concrete cover requirements, such as 30 mm for beams and columns, are clearly stated. Grid intersections, beam junctions, and load transfer paths are clearly indicated to support foundation and column coordination. This first-floor beam layout drawing is suitable for civil engineers and structural designers requiring a precise beam layout AutoCAD drawing with dimensions, scale reference, and reinforcement notes for residential structural planning and execution, and can be coordinated with polycarbonate skylight and aluminum profile CAD details for roof integration and structural alignment in building design.