About Handyfig

Handyfig is a small, independent set of free calculators for jobs around the home: paint, concrete, gravel, tile, decking, fencing and stairs. It has US, UK and Australian versions, each with its own spelling and units.

Handyfig is run by JB, an independent publisher based in Australia. Questions or corrections: hello@handyfig.com.

How the calculators are checked

Each page shows the date its sources were last checked and links to them. Stair limits come from the building rules of each region: the International Residential Code in the US, Approved Document K in England and the National Construction Code in Australia.

Defaults such as paint coverage, bag yields and joist spacing are either taken from a manufacturer or standard we link to, or labelled as an editorial rule of thumb. Every one is editable, because your product, your wall and your local rules decide the real answer. Every formula has automated tests with worked examples.

Handyfig is not affiliated with any paint, concrete, tile, decking or fencing brand, retailer or tradesperson, and it does not sell or recommend products. Where a page names a manufacturer, it is only to say where a figure came from.

A guide only

Results are estimates to help you plan and shop. They are not building, structural, electrical or financial advice. Check product instructions, local rules and, where it matters, a qualified person.

Privacy

The numbers you type are worked out in your browser and are not sent to us. See the privacy policy for how analytics and advertising work on this site.

Corrections

If you spot an out-of-date figure or a mistake, please let us know.