CalcBovedillas per m² Calculator
Last updated: 2026-09-14
How to Use This Calculator
This calculator helps you determine the number of bovedillas (hollow clay blocks) needed for a reinforced concrete floor slab per square meter and in total. Bovedillas are a key component in floor systems, acting as filler between viguetas (joists) to create a flat surface for the compression layer. To use the tool, simply input the dimensions of your bovedilla, the width of the vigueta, and the total slab area. The calculator will then compute the number of bovedillas per square meter and the total quantity required, including the area. It is essential to use consistent units—meters in this case—to avoid errors.
Formula and Methodology
The calculation is based on the modular arrangement of bovedillas and viguetas. The pitch (or paso) is the sum of the bovedilla width and the vigueta width. The number of bovedillas per square meter is given by: Bovedillas per m² = 1 / (pitch × bovedilla length). This assumes that bovedillas are laid in a single direction and that each bovedilla covers an area of pitch × length. The total number of bovedillas is then the product of the area and the bovedillas per m², rounded up to the nearest whole unit. This method is standard in construction estimation and provides a reliable starting point for material procurement.
Practical Examples
Suppose you are building a slab of 5 m by 10 m (50 m²). You choose bovedillas of length 0.60 m, width 0.20 m, and viguetas of width 0.12 m. The pitch is 0.32 m. Bovedillas per m² = 1 / (0.32 × 0.60) = 5.2083 units. Total bovedillas = 50 × 5.2083 = 260.42, which rounds up to 261 units. Adding 5% waste gives about 274 units. This example illustrates how the calculator quickly provides accurate estimates.
Tips and Best Practices
Always verify the dimensions of your bovedillas and viguetas with the supplier, as nominal sizes may differ. Consider adding a waste factor of 5-10% for cuts and breakage. Ensure that the bovedillas are laid with the correct orientation and that the viguetas are properly spaced according to structural design. For large projects, consult a structural engineer to confirm load-bearing capacity. This calculator is a handy tool for quick estimates but should not replace professional advice.
FAQ
What is a bovedilla?
A bovedilla is a hollow clay or concrete block used in reinforced concrete floor slabs to reduce weight and improve thermal and acoustic insulation. They are placed between viguetas (joists) and covered with a compression layer of concrete.
How do I calculate bovedillas per square meter?
Divide 1 by the product of the pitch (bovedilla width + vigueta width) and the bovedilla length. For example, if pitch = 0.32 m and length = 0.60 m, then bovedillas per m² = 1 / (0.32 × 0.60) = 5.21 units.
Should I order extra bovedillas?
Yes, it is recommended to order 5-10% extra to account for cuts, breakage, and waste during installation.
Do bovedilla dimensions vary by region?
Yes, common sizes vary. In Spain and Latin America, typical bovedilla lengths are 50 cm, 60 cm, or 70 cm, with widths from 15 cm to 25 cm. Always check local supplier specifications.