RCC staircase calculator: floor-to-floor height → number of risers and treads, checked against NBC 2016 (residential riser ≤ 190 mm, tread ≥ 250 mm) and the comfort rule 2R + T = 550–700 mm. Estimates waist slab thickness (span/20, min 150 mm), concrete for waist, steps and mid-landing, then cement, sand, aggregate (M20, ×1.54), steel (~1.2%) and cost at editable Delhi NCR Oct 2026 rates. Indicative ±10–15%.
Send drawings or a sketch — we reply with scope, timeline and a fixed quote.
