How it works
- Add a room. Length, width and wall height generate four walls (A–D), a floor and, if you want it, a flat or symmetric gable ceiling. Feet-and-inches with fractions or metric; the unit switch changes display only.
- Confirm the scope. A table and a plan diagram show every surface. Tick a wall for drywall but not paint, leave out the wall with the built-in wardrobe, include the ceiling for primer only — each material has its own selection, and unselected surfaces never enter a total.
- Add openings. Doors and windows belong to a wall; floor exclusions belong to the floor. You decide per opening whether it reduces drywall, paint or primer. Wall openings never reduce flooring.
- Choose products and review assumptions. Sheet size, paint coverage and coats, box coverage, allowances. Presets are labelled planning values with a review date; you tick that you have checked the label before the list is marked ready.
- Price it and export. Enter your prices, a tax rate, delivery and fees. Export a CSV with quantities, package specs, formula version and exclusions, print it, or download a backup of the whole project.
Why one room model matters
Drywall, paint and flooring are three different purchases that depend on the same five numbers. Keeping them in one model means a change to a wall height propagates everywhere, the ceiling cannot be accidentally counted for flooring, and the shopping list can tell you exactly which surface and assumption produced each line. Read floor area vs paintable area and three-wall drywall for the two mistakes this prevents most often.
What it does not do
No cutting layouts, no structural or code checks, no insulation or electrical sizing, no live supplier prices. Accessories without a reviewed yield are marked "Quantity required" rather than guessed. Herringbone and diagonal flooring need a reviewed allowance. Full detail on the methodology page.
Frequently asked questions
Where is my project saved?
In your browser's own storage on this device. Nothing is uploaded. Export a backup file from the project to keep a copy or move it to another device; clearing site data deletes projects.
Can I plan several rooms?
Yes — up to 50 rooms in a project and 20 projects. Compatible products can be pooled across rooms so rounding happens once, or purchased room by room.
What happens when I change a measurement?
Every material that uses that surface recalculates from the new geometry. If you have issued a snapshot (an export or a saved snapshot), the list shows old → new quantities and the prior snapshot is preserved.
What is a scenario?
A full copy of the project linked to its baseline. Change the sheet size, drop a wall or pick a different paint in the copy and compare quantities and priced subtotals side by side. The baseline is never changed through a scenario.
Can I get a total cost?
Enter the price for each product and the planner shows a priced subtotal, tax at your rate on taxable lines, delivery and fees. A total appears only when every line is priced — a partly priced list is labelled as such, never called a project total.