Contact

Email hello@squarefootcalcs.com. There is no contact form, because a form would mean collecting and storing your details and this site does not do that.

Reporting a wrong figure

This is the message most worth sending. If a bag yield, coverage rate or formula does not match what you found on the product, include the brand and product name and the figure printed on the label. Corrections get made quickly and the check date on the page is updated.

Requesting a calculator

Gravel, topsoil, sod and seed, tile, decking, fencing and roofing are already planned. If you need something else, describe the job rather than the tool — what you are building and what you are trying to buy — and it will usually be clearer what the calculator needs to do.

Everything else

Questions about how a number was derived, accessibility problems, or anything about privacy and how this site handles data go to the same address. Privacy requests are covered in more detail in the privacy policy.