Base de grava para losas de concreto: volumen y peso
Calculadora de Base de Grava para Concreto
Primero la respuesta: ingresa las dimensiones de tu losa y el espesor de la base. Obten yardas cubicas y toneladas de grava compactada para la base.
Espesor de base recomendado
4 pulgadas (compactado)
Para la mayoria de losas residenciales. Suelos arcillosos o de mala calidad pueden necesitar 6-8 pulgadas.
Compactacion requerida
95% de densidad Proctor
La base sin compactar es la causa principal de losas agrietadas y hundidas.
Ejemplos de volumen y toneladas de base de grava
Use these examples as a supplier-call screen. The ton range is a planning range, not a ticket guarantee; ask the supplier for the density used for the exact clear stone, crushed stone, or road base product.
| Escenario base | Pantalla de volumen suelto | Pantalla de rango de toneladas | Pregunta al proveedor |
|---|---|---|---|
| 3.33 yd3 clear stone | 3.33 cubic yards | about 4.3 to 4.8 tons | What tons-per-yard conversion does this quarry use for this clear stone? |
| 100 sq ft slab, 4 in base | 1.23 yd3 before buffer; 1.36 yd3 with 10% | about 1.8 to 2.0 tons with buffer | Is the base depth measured loose, compacted, or after final grading? |
| 10x12 shed pad, 4 in base | 1.48 yd3 before buffer; 1.63 yd3 with 10% | about 2.1 to 2.4 tons with buffer | Does the pad quote include excavation, compaction, geotextile, and haul-off? |
| 12x20 driveway apron, 6 in base | 4.44 yd3 before buffer; 4.89 yd3 with 10% | about 6.4 to 7.1 tons with buffer | Can the truck dump close to the work area without driveway or turf damage? |
Interactive workflow
Run the numbers, then save or export the project
Concrete base material decision checklist
Use this table before ordering stone or accepting a bid that bundles concrete, excavation, and base prep into one line.
| Signal to check | What it means | Next step |
|---|---|---|
| Area and base depth | Square feet or square meters times base depth gives the starting volume before waste or compaction. | Confirm whether the footprint includes over-excavation beyond the slab or pad edge. |
| Material type | Clear stone, crushed stone, road base, crusher run, and recycled aggregate can have different density and compaction behavior. | Ask the supplier for the product name, gradation, and tons-per-yard conversion used on the ticket. |
| Compaction and drainage | Base thickness after compaction may differ from loose delivered volume, especially when placed in lifts. | Clarify lift thickness, compaction responsibility, drainage correction, and whether geotextile is included. |
| Delivery access | Dump location, driveway protection, wheelbarrow distance, skid steer access, and cleanup can change the real cost. | Use the wheelbarrow or delivery cost calculators when base or concrete must be moved far from the truck. |
| Quote wording | A base line that says gravel included may hide material type, depth, compaction, haul-off, soil repair, and warranty limits. | Require the base scope in writing before comparing the lowest concrete bid. |
Related concrete planning tools
Move from a single calculation into a purchase, proposal, or pour-day decision with connected calculators and checklists.
Cuanta grava necesito bajo una losa de concreto?
Tipicamente 4 pulgadas de grava compactada. Para una losa de 10x10 ft, necesitas aproximadamente 1.2 yd3 de grava.
Que tipo de grava usar para la base?
Grava de piedra triturada de 3/4 pulgada o grava limpia de base ('crushed stone base'). Evita el uso de tierra o arena fina como base.
Porque es importante la base de grava?
Proporciona drenaje, distribuye la carga y previene el hundimiento. La mayoria de fallas en losas de concreto se deben a una base inadecuada.
Necesito grava si ya tengo suelo compactado?
Generalmente si. La grava proporciona mejor drenaje y compactacion uniforme que la mayoria de suelos.
Planning disclaimer
Los estimados de grava son para planificacion. La grava real necesaria depende de las condiciones del suelo y los requisitos de drenaje.