About OrderEnough

Why this site exists

A room measurement is only the start of a material order. Paint needs a coverage rate and a coat count; flooring needs a cutting allowance and the coverage of the actual pack; wallpaper needs a plan for full-height drops.

The useful distinction is between the amount the job needs and the amount you can buy. We show that working so you can see whether extra material comes from a selected allowance or from rounding to a whole tin, pack or roll.

Our calculators answer the question you actually have: what do I put in the trolley?

What we do differently

• Every formula is published. Each calculator page shows the equation it uses and a worked example you can check by hand.
• We separate requirements from retail quantities. Material tools show the relevant tins, packs, boxes or lengths. Check the assumed sizes against the retailer; calculated surplus is not a promise of usable leftovers.
• Metric and imperial measurements. The unit toggle converts supported dimensions and results. Product coverage rates, joint sizes and selected pack sizes keep the units shown beside those fields.
• No sign-up, no email wall. The calculators work immediately and we do not ask for anything to use them.
• We show our assumptions. Where we assume a door is 1.9 m² or that mortar wastage is 20%, it says so on the page.

How the site is run

OrderEnough is an independent website. Our material calculations are separate from the optional equipment links shown alongside the guides.

Our automated checks cover every calculator with default inputs, selected worked examples, unit conversion and other calculation checks. A passing test checks those cases; it does not certify a product, inspect a building or prove that every possible project is covered.

The methodology page explains the difference between a geometric formula, a product specification and an estimating assumption, and what to check before ordering.

How the site is funded

The site uses Amazon affiliate links and is set up to support display advertising. If you follow a labelled product link and make a qualifying purchase, we may earn a commission. There is no paid tier and you can use every calculator without buying anything.

As an Amazon Associate I earn from qualifying purchases.

Equipment suggestions are selected for the task described on the page, using product information rather than our own hands-on testing. They are optional examples, not a ranking of the best products. Commission does not change a formula, coverage rate or calculated quantity. Amazon may redirect Amazon.com links to local products or search results. Where offered, Amazon.nl links search for alternative tools in the Netherlands; brands, sizes and specifications may differ. Each store uses its own Associates tracking ID. Check suitability, seller and delivery before ordering.

Where display ad spaces are enabled, they are labelled and kept outside the calculator controls and results. Advertising does not change a calculation.

You can turn off personalised advertising at any time on our cookie page. The calculators work exactly the same either way.

Corrections and feedback

If a number looks wrong, tell us. Include the inputs, units and any product data sheet or calculation you used for comparison. This makes a discrepancy easier to reproduce. The date shown on a page identifies its latest content update; it is not a certification date.

Write to contact@orderenough.com or use the contact form. Please include the calculator name and the numbers you entered.

What we are not