Rebar BBS weight, structural steel sections, and beam deflection calculators.
Calculate reinforcement steel bar weight, cut lengths, laps, scrap wastage, and total metric tonnes.
W_{unit} = frac{D^2}{162.198} text{ kg/m} = frac{D^2}{533.33} text{ lb/ft}; quad W_{total} = W_{unit} times L_{cut} times N_{bars}
Calculate theoretical mass of steel plates, round bars, pipes, square hollow sections, and angle profiles.
M = A_{cross} times L times rho_{steel}; quad rho_{steel} = 7850 text{ kg/m}^3
Calculate elastic deflection, maximum bending moment, shear force, and L/250 serviceability limits.
delta_{max} = frac{P L^3}{3 E I} quad (text{Cantilever Point Load}); quad M_{max} = P L; quad delta_{allow} = frac{L}{250}