Design Calculators

Design singly and doubly reinforced rectangular beams. Calculate tension steel, compression steel, shear reinforcement, and deflection limits.

Calculate longitudinal steel and lateral ties for short and long columns under axial load with uniaxial or biaxial bending moments.

Analyze one-way and two-way slabs using coefficient methods. Determine effective depth, main steel, and distribution reinforcement.

Design dog-legged and open-well staircases. Calculate riser-tread proportions, going dimensions, effective span, and waist slab reinforcement.

Design square or rectangular isolated footings. Complete checks for one-way shear, punching shear, bending moment, and maximum soil pressure.

Design cantilever retaining walls. Full stability analysis against overturning, sliding, and base bearing capacity failure modes.

Calculate cut and fill volumes using Trapezoidal or Prismoidal formulae based on contour levels or cross-sectional data.

Proportion cement, sand, aggregate, and water for M20 to M80 grade concrete. Follows the latest 2019 revision step-by-step.

Look up sectional properties — Area, Ixx, Iyy, Zxx, Zyy — for standard ISMB, ISWB, ISJC, ISLB, and Channel sections.

Calculate Dead Loads, Live Loads, Wind Loads, and Seismic weights for various building occupancy types and heights.

Generate BBS for straight bars, bent-up bars, stirrups, and spirals. Automatically calculates cutting length and total weight per bar diameter.

Estimate number of bricks, cement bags, and sand volume required for 1st class, 2nd class, or custom brick masonry with mortar deduction.

Calculate net surface area for painting, plastering, and pointing — with automatic deductions for doors, windows, and openings.

Design capacity and basic dimensions for rectangular overhead and underground water tanks based on population demand and per capita consumption.

Instantly convert between metric and imperial units — length, area, volume, weight, stress, density, and flow rate commonly used on site.