Bathroom Remodel Planner
Rough-in, tiling, ventilation — the room where the mistakes are hidden
A bathroom is the one room where the expensive mistakes are behind the walls, where nobody looks until they leak. This workbook puts the rough-in decisions in front of you first: moving the toilet waste line, relocating the shower valve, rerunning water supply. Every tiling line carries a waterproofing flag so the membrane does not quietly disappear from the scope. Ventilation and IP-rated lighting get their own tab, because damp problems outlive renovations. Fourteen fixtures, a mould-resistant paint schedule and a twelve-step sequence round it out.
What it does
- Rough-in tab covering waste lines, shower valves and soil pipes
- Every tiling line flagged for waterproofing — wet zones can't be forgotten
- 14 fixtures with a separate fittings column so tap sets aren't hidden
- Ventilation, ducting and IP-rated lighting as a dedicated budget
- 12-step sequence: plumbing before walls, walls before tile, tile before paint
Tabs in the file
- Overview — Room dimensions with floor area calculated, contingency and total.
- Fixtures — Toilet to linear drain, with fittings costed separately.
- Tile — Floor, walls, surround and accent — each flagged for waterproofing.
- Roughin — What actually changes behind the walls.
- Systems — Extractor fan, ducting, heated rail, IP-rated lighting.
- Paint — Areas by coats, with mould-resistant notes.
- Schedule — 12 steps in the order they must happen.
What's included
- The .xlsx file itself — opens in Excel, Google Sheets, LibreOffice or Numbers
- A 'How to use' tab explaining every input and every formula
- Free updates if we add lines or fix a formula
Delivery
Instant download link on the order confirmation page, plus a copy by email.
Important — please read
- This workbook produces estimates for planning. It is not a quote, a contract, or construction, engineering, electrical or safety advice.
- Bathroom prices move faster than any other room. Confirm current prices with your supplier before you commit.
- Electrical work in wet zones must comply with local code. Use a qualified electrician.
- Waterproofing requirements vary by authority. Confirm before tiling a wet zone.
- Every calculator on this site stays free and unlimited. Buying this file does not unlock or remove any calculator.
Questions, corrections or a mistake in the file? Email hello@buildcalc-hub.com. We answer within three business days. If the file turns out not to be useful to you, ask for a refund within 14 days. Every calculator on BuildCalc stays free whether you buy this or not.
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