BestTools / Guides
Guides
Reference tables
- SL reinforcing mesh sizes and weightsSL52 to SL102 square mesh: bar diameter, spacing and approximate weight per square metre and per 6.0 × 2.4 m sheet.
- Plasterboard sheet sizes in AustraliaCommon plasterboard sheet lengths and widths with the area of each sheet, to help you order the fewest joins.
- NCC stair rules: risers, goings and 2R + GQuick reference to common NCC stair limits for houses, with riser counts for floor-to-floor heights from 2.4 m to 3.4 m.
- How many bricks per square metre?Bricks and blocks per square metre for single and double walls, and the mortar needed per 1,000 bricks.
- Concrete for common slab sizesCubic metres and 20 kg premix bags for common slab sizes, from a 1 × 1 m pad to a 10 × 10 m slab.
Rainwater by city
- Rainwater tank calculator for SydneyHow much rain can a Sydney roof collect? About 1,213 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for MelbourneHow much rain can a Melbourne roof collect? About 648 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for BrisbaneHow much rain can a Brisbane roof collect? About 1,149 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for PerthHow much rain can a Perth roof collect? About 731 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for AdelaideHow much rain can a Adelaide roof collect? About 527 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for CanberraHow much rain can a Canberra roof collect? About 615 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for HobartHow much rain can a Hobart roof collect? About 612 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for DarwinHow much rain can a Darwin roof collect? About 1,723 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for CairnsHow much rain can a Cairns roof collect? About 1,959 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for TownsvilleHow much rain can a Townsville roof collect? About 1,095 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for WollongongHow much rain can a Wollongong roof collect? About 1,128 mm a year. See litres per year by roof size and how long a tank lasts.
- Rainwater tank calculator for Coffs HarbourHow much rain can a Coffs Harbour roof collect? About 1,668 mm a year. See litres per year by roof size and how long a tank lasts.