Example 9: Calculate Number of Tiles to Purchase

For a given Slab, how many tiles are needed to cover it?

1.Define three Properties for Tile dimensions: Tile Dimension 1 and Tile Dimension 2, and the Grouting dimension.

–These are fixed Length-type values (not Expressions).

2.Define an expression called “Number of tiles - not rounded”, using the three dimensions you defined in Step 1, to calculate the number of tiles needed to cover the slab:

Take the Top Surface Area of the Slab and divide it by the area of the tile, including grouting. (For tile area: Add the grouting length to each tile dimension, then multiply them.)

Evaluate for the selected Slab to see the resulting Property value:

3.Define another expression (using the expression you defined in Step 2) that rounds up the number of tiles to a whole number.

See Round Up [ROUNDUP] for information on this function’s arguments and data types.