Trade knowledge hub
Practical guides for Australian tradies
Real job-site explainers for builders, chippies, plumbers, roofers, tilers, and painters. Every article links to the relevant calculators so you can move from reading to action quickly.
- carpentry
How to Calculate Stair Rise and Run on Australian Job Sites
A practical guide for builders and chippies who need stair set-out that works on site, passes checks, and avoids expensive recuts.
Primary topic: stair rise and run calculator. Also covers stairs calculator Australia, stringer length calculator, NCC stair dimensions.
Read full guide - concreting
Concrete Volume Calculator Australia Guide for Slabs, Footings, and Piers
If you have ever paid for an emergency top-up truck, this guide is for you. Learn how tradies estimate concrete volumes with fewer surprises.
Primary topic: concrete volume calculator Australia. Also covers slab concrete calculator, footing concrete calculator, how many cubic metres of concrete.
Read full guide - roofing
Roof Pitch Calculator Australia Guide: Rafters, Set-Out, and Sheet Planning
Roof maths is simple until the site is uneven and the schedule is tight. This guide shows how tradies convert pitch numbers into practical install decisions.
Primary topic: roof pitch calculator Australia. Also covers rafter length calculator, roof pitch in degrees, roofing sheet calculator.
Read full guide - building
Check Square on Site: 3-4-5 Method, Diagonals, and Fast Set-Out
Square set-out is still one of the highest ROI checks in construction. This guide explains how to run it fast and get reliable results on uneven sites.
Primary topic: check square calculator. Also covers 3-4-5 method, diagonal set out, how to square a frame.
Read full guide - carpentry
Timber Stud Spacing Calculator Australia Guide: 450 vs 600 Centres
Stud layouts are easy to underestimate. This guide covers spacing choices, opening allowances, and how to avoid short material orders.
Primary topic: timber stud spacing calculator. Also covers stud count calculator Australia, 450 or 600 stud centres, wall framing takeoff.
Read full guide - tiling
Tile and Paver Quantity Calculator Guide with Real-World Wastage
Ordering tile by pure area is how jobs run short. This guide explains quantity planning that reflects cuts, patterns, and breakage risk.
Primary topic: tile and paver quantity calculator. Also covers tile calculator Australia, paver calculator with wastage, how many tiles do I need.
Read full guide - plumbing
Trench and Backfill Calculator Guide for Australian Plumbing Work
From stormwater to sewer upgrades, trench quantity errors quickly become margin errors. Learn a repeatable way to estimate and order accurately.
Primary topic: trench backfill calculator. Also covers trench volume calculator, plumbing excavation estimate, backfill quantity calculator.
Read full guide - plastering
Plasterboard Sheet Calculator Guide for Walls, Ceilings, and Raked Areas
Sheet counts look easy until rakes, openings, and board orientation are involved. This guide gives a practical estimating method for plasterers and builders.
Primary topic: plasterboard sheet calculator. Also covers drywall sheet calculator Australia, ceiling sheet quantity, raked wall area calculator.
Read full guide - painting
Paint Quantity Calculator Australia Guide for Walls, Ceilings, and Repaints
Avoid under-ordering paint and losing time on second runs. This guide explains how painters estimate litres in a way that matches site reality.
Primary topic: paint quantity calculator Australia. Also covers paint coverage calculator, how many litres of paint, wall and ceiling paint estimate.
Read full guide - business
Tradie Job Cost Calculator Guide: Building Better Quotes in Australia
Many trade businesses are busy but still under-margin. This guide explains how to build job costing habits that protect profit and client trust.
Primary topic: tradie job cost calculator. Also covers trade quote calculator Australia, labour and material estimate, tradie margin calculator.
Read full guide - measurement
Unit Conversion and Measurement Calculator Guide for Australian Tradies
Conversion mistakes can quietly damage material orders and set-out quality. Learn a practical measurement workflow for mixed-unit plans and suppliers.
Primary topic: unit conversion calculator for tradies. Also covers mm to inches conversion, metres to feet calculator, trade measurement calculator.
Read full guide - estimating
Material Wastage Calculator Guide for Builders and Trade Estimators
Wastage is not a guess line. Learn how to set practical percentages by material type, layout complexity, and site conditions.
Primary topic: material wastage calculator. Also covers construction wastage percentage, builder material allowance, ordering allowance calculator.
Read full guide
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