About Cutfall

Cutfall makes free planning tools for people who are about to cut something expensive and would rather know where the cuts land first.

Who builds it

I'm Taewon Yun, a software engineering student at the University of Auckland, in New Zealand. Cutfall is a project of TruthBound, my own one-person company. There is no team, no investor and no support desk — just me, working on this a few hours a week.

I say that plainly because it explains the shape of the site. Tools arrive slowly and there will never be many of them. Each one gets built properly or it doesn't get built.

Why it exists

Search for a tile calculator and you'll find a hundred pages that multiply length by width, divide by tile area, add ten percent and call it a plan. That arithmetic is not wrong. It also isn't the question anyone is actually asking.

The question is where do I start. Move the first tile 100 mm and the tile count barely changes, but the strip of tile you're left with at the far wall can go from 180 mm to 15 mm — from an easy cut to a piece that snaps in the nippers, three times, in front of the customer. A number in a box can't tell you that. A drawing can.

So every Cutfall tool has to solve something real — packing, layout, geometry, set-out — and every tool has to draw the answer to scale and let you print it. If a tool could be replaced by a form and a multiplication, it doesn't belong here.

Two commitments

Everything computes in your browser

There is no server doing the maths. The solvers are JavaScript running in a background thread on your own device. Your room dimensions are never uploaded, never stored, and never seen by me — not as a policy, but because there is nowhere for them to go. Close the tab and the numbers are gone.

The download is free, and stays free

Every result, every drawing and every printable plan is free, with no account, no email address, no watermark and no export limit. This is the step where most calculators in this field stop and ask for something; it's the step where the work is actually worth having, so it's the step that stays open.

The site is paid for by display advertising, which is why the ad slots exist. They sit below the tool, never above the inputs, and never over a result you're waiting on.

What it is not

Cutfall's outputs are planning estimates. They assume the measurements you typed are correct, that your walls are square and that your tiles match their box. On a real floor at least one of those is usually a little false. Always dry-lay and verify on site before you cut or buy — see theterms for the full version of that sentence.

Get in touch

Corrections are especially welcome. If a tool gives you an answer you know is wrong, that's the most useful message I can receive —tell me about it.