Calculadora de Zapata de Concreto Gratis
Calcula el concreto necesario para zapatas. Introduce largo, ancho y profundidad para obtener yardas cúbicas con margen de desperdicio.
Volumen (Yardas Cúbicas)
2.06 cu yd
Volume (Cubic Yards) vs Footing Length
Fórmula
## How to Calculate Concrete for Footings ### Formula **Volume = Length (ft) x Width (ft) x Depth (ft)** Convert width and depth from inches to feet by dividing by 12, then divide total cubic feet by 27 for cubic yards. Footings are typically 20 inches wide and 8 inches deep for residential construction, but always follow local building codes.
Ejemplo Resuelto
A continuous footing that is 50 ft long, 20 inches wide, and 8 inches deep.
- 01Width in feet: 20 / 12 = 1.667 ft
- 02Depth in feet: 8 / 12 = 0.667 ft
- 03Volume = 50 × 1.667 × 0.667 = 55.56 cu ft
- 04Cubic yards = 55.56 / 27 = 2.06 cu yd
- 05With 10% waste = 2.06 × 1.10 = 2.26 cu yd
Preguntas Frecuentes
How deep should a footing be?
Footings must extend below the frost line in your area, typically 12-48 inches depending on climate. The minimum thickness is usually 6-8 inches for residential buildings.
How wide should a footing be?
A standard rule is that footings should be at least twice the width of the wall they support. For an 8-inch block wall, use at least a 16-inch wide footing.
What PSI concrete is used for footings?
Most residential footings use 2,500 to 3,000 PSI concrete. Commercial or structural footings may require 3,500 to 4,000 PSI or higher.
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