Quick answers to the things people ask most. If you can't find it here, contact support and we'll come back to you.
Frequently asked questions
Are the calculator results accurate enough to order from?
They are estimates based on standard UK material sizes and your inputs, including your chosen waste allowance. Always check measurements on site and confirm quantities with your supplier before ordering.
Do I need an account?
You can use the calculators without one. An account is needed to save estimates, create projects and track budgets so your data follows you between devices.
Is my data private?
Your projects, estimates and costs are tied to your account and only visible to you. See the Privacy Policy for detail.
Using the calculators
How does the waste allowance work?
Enter a percentage (usually 5–15%). Quantities are increased by that amount and then rounded up to sensible purchase units — packs, bags, tonnes or full lengths.
Why are order quantities higher than the raw calculation?
Materials are sold in fixed units. We round up to the next whole pack, bag or length so you are never short on site.
Can I add my own prices?
Yes. Cost fields are optional on the costing calculators — enter your supplier prices and the estimated material cost updates live from the rounded order quantities.
Projects & saved estimates
How do I save an estimate?
Calculate as normal, then use Save to project at the bottom of the results. Pick an existing project or create a new one.
Where do saved costs appear?
Any estimate with a material cost feeds the project's estimated material total. Manual cost items can be marked as already covered by an estimate so nothing is double-counted.
Can I reopen or delete an estimate?
Yes — open the project, tap the estimate to reopen its calculator, or delete it from the project view.
Account & subscription help
How do I change my name or account type?
Open You and edit your profile details, then save. Changes apply immediately.
How do plans work?
Free, Pro and Builder Pro. Your current plan is shown on the You screen. Billing is not live yet, so no payment is taken.
How do I delete my account?
Contact support and we will remove your account and associated project data.
Reporting a problem
Something looks wrong in a calculation
Send us the calculator name, the inputs you used and what you expected. We check every reported formula issue.
The app won't load or a page is blank
Close and reopen the app, or refresh the page. If it continues, report it with the screen name and what you were doing.