Guides
A calculator answers a question you already know how to ask. These cover the ones that come first — how to take the measurement, and what the finished job costs.
How to
The part that comes before the calculator.
- How to Read a Tape MeasureWhy the marks are different lengths, and how to read a sixteenth without counting them: each halving is drawn one step shorter than the one above it.
- How to Measure a Room for FlooringWhere to hold the tape, how to split an odd shape into rectangles rather than one clever polygon, and how much extra to order once the offcuts are counted.
- How to Use a ProtractorLining up the vertex, choosing between the two scales — the one to read starts at zero on your baseline — and reading an angle past 180° without inverting it.
What it costs
Materials, labour and the lines a quote does not itemise.
- What a Concrete Patio CostsMaterials, delivery and labour for a slab, and where the price actually moves: on a small pour the concrete is rarely the largest of the three figures.
- What a Deck Costs to BuildDecking, framing and fasteners priced out, and why the board decides the total: the framing under it barely changes between a cheap deck and a costly one.
- What a Shingle Roof CostsSquares, bundles, tear-off and the pitch multiplier that makes a steep roof cost more twice over — once for the area, once for the labour of standing on it.
- What a Fence CostsPost spacing, the ground-contact rating most people buy wrong, and why corners and gates cost more per foot than the long straight runs between them.
- What Drywalling a Room CostsSheets, screws, and the finish level that decides most of the labour bill while appearing on no quote — level 4 and level 5 are not the same job.
- What a Gravel Driveway CostsWhich stone actually compacts, how deep each layer goes, and why the cheapest load is the expensive one once it has to be dug out and replaced two years later.