There's an app for thisFree account, every calculator saved
Every Built Simple calculator, free in the app. One tap next time, no searching for the website.Built Simple is free to start. Save your numbers, run every calculator, and open the same job on your phone when you are on site.
Material Weight Calculator: Construction Material Weights
Knowing material weights is critical for structural design, crane lifts, transport, and safe manual handling (max 25kg per person under WHS Regulations). This calculator provides weights for common construction materials by volume or area.
Common Material Densities
Material
Density (kg/m³)
Per m² (100mm)
Concrete (reinforced)
2,400
240 kg
Steel
7,850
785 kg
Timber (Pine)
500–600
50–60 kg
Timber (Hardwood)
800–1,100
80–110 kg
Brickwork
1,900
190 kg
Sand
1,500–1,700
150–170 kg
Gravel
1,500–1,800
150–180 kg
Formula
Weight = Volume (m³) × Density (kg/m³). For sheets: Area × Weight per m².
Frequently Asked Questions
How much does a cubic metre of concrete weigh?
Reinforced concrete weighs approximately 2,400 kg/m³ (2.4 tonnes). A 100mm slab weighs 240 kg/m².
How heavy is a plasterboard sheet?
A 2400×1200×10mm sheet weighs approximately 24.5 kg. The 13mm version is around 30 kg.
Safe manual handling weight?
General guideline is 25 kg maximum for a single person lift. Heavier items need mechanical aids or team lifting.
Stop Guessing. Start Building Smarter.
Built Simple gives you calculators, estimating tools, scheduling, and project management, all in one platform built for Australian builders.
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional
Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Get this in the app, freeSave this result to a free account
Every calculator, one tap away in Built Simple. Sign up free and skip the search next time.Keep your take offs, quotes and job schedule in one place. Free to start, and every calculator comes with it.
