calculate_concrete_stairs
Calculate concrete stair dimensions, volume, and materials using Blondel's formula. Input total height and number of steps to get required tread and riser sizes.
Instructions
Calculate concrete stair dimensions, volume and materials using Blondel's formula. See list_bundles for related 'construction' calculators.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| height_m | Yes | Total stair height to climb in meters | |
| num_steps | Yes | Number of steps | |
| width_m | No | Stair width in meters (default 0.9m) | |
| thickness_cm | No | Slab thickness under each tread in cm (default 15cm) |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | No | Computed result. Object whose fields depend on the tool (e.g. {tax, marginal_rate, brackets} for tax tools, {volume_l, gallons} for volume tools). | |
| formula | No | Human-readable formula or method used (e.g. "I=P·r·t", "Magnus formula"). | |
| source | No | Authoritative source for the rule or formula (e.g. "Article 197 CGI", "NF DTU 21"). | |
| reference_url | No | Link to a calcul2 page documenting the calculation in detail. |