About Opuslay

I'm Xavier, an engineer, and I built Opuslay because every tile calculator I could find did the same thing: multiply the room area by a fixed waste percentage and call it done. That gives you a rough number of square feet to buy — but it never tells you how the pattern actually falls in your room: where the cuts land, which tiles repeat, how a Versailles or herringbone layout meets your walls.

So I wrote a tool that lays the pattern out for real, tile by tile, and then counts what it sees. No rounding, no invented numbers, no mystery.

How Opuslay calculates

• Real tessellation, not a percentage.Each pattern is placed across your actual room dimensions, tile by tile, from a chosen anchor point. The counts come from the layout itself, not from a formula.
• Geometry that's been checked.Every pattern in the library is defined by raw geometry in centimeters and verified before it ships — the module's area equals its repeat, with no overlaps and no gaps.
• Industry bond conventions.Offsets follow ANSI A108.02: a half-tile offset for small formats, and a third-tile offset for large-format tile — the standard way to avoid lippage.
• Exact unit handling.Inch and metric throughout, with a toggle on every page. Inch conversions use the exact 2.54 factor — never a rounded approximation.
• Honest results.Quantities are given in pieces plus area (sq ft / m²). Opuslay won't guess a number of boxes or cartons, because packaging depends on the supplier and I'd rather not make that up.

The pattern library is free to use. If it saves you a bad tile order, it did its job.

Get in touch

Found a pattern that's off, need a layout that isn't in the library yet, or want to talk shop? Send a note — it reaches me directly.