Plan terrazzo topping with dependable quantity outputs now. Switch units, ratios, and pricing in seconds. Download clean reports, then order materials with confidence today.
| Scenario | Area | Thickness | Waste | Mix ratio | Wet volume + waste | Binder | Chips |
|---|---|---|---|---|---|---|---|
| Lobby topping | 50.0 m² | 15 mm | 7% | 1 : 2 | 0.80250 m³ | ~617 kg | ~1,234 kg |
| Corridor pour | 30.0 m² | 12 mm | 8% | 1 : 2 | 0.38880 m³ | ~299 kg | ~598 kg |
| Small room | 12.0 m² | 20 mm | 6% | 1 : 1.5 | 0.25440 m³ | ~224 kg | ~336 kg |
Accurate terrazzo takeoffs start with net area and specified topping thickness. This calculator converts area and thickness into wet volume, then applies waste to reflect batching losses, edge returns, divider-strip zones, and cleanup. For cementitious systems, the optional dry factor can be used to account for handling and minor shrinkage effects during placement.
Thickness is entered in millimeters or inches and converted to meters for consistent volume output. Density is entered in kg/m³ and influences the final mix mass. A practical density range for installed terrazzo is often between 2000 and 2400 kg/m³, depending on binder type, aggregate gradation, and compaction. Waste is commonly set between 5% and 10% for straightforward pours, and higher for complex patterns or small batches.
The mix ratio divides the effective mix mass into binder and chips by weight using parts (for example, 1:2). Pigment is calculated as a percentage of binder mass so color dosing scales automatically with project size. For epoxy systems, the binder is further split into resin and hardener using a simple parts ratio (such as 2:1), supporting consistent ordering and batching.
Sealer is estimated from net area divided by coverage (m² per liter). Small waste is included to cover tray losses and touch-ups. If you enter unit costs for binder, chips, pigment, sealer, and labor per square meter, the calculator provides material cost, labor cost, and a combined total to help compare specifications and validate budgets.
Use the following sample values to confirm your workflow before final ordering:
Use your project specification. Common toppings range roughly from 10–20 mm for many interiors, but details vary by substrate, system type, and finish requirements. Confirm minimums near edges and around divider strips.
Volume determines how much material fills the space, but density converts that volume into kilograms for ordering. Different binders and chip blends change density, so entering a realistic value improves bag counts and cost estimates.
For simple rectangular pours, 5–10% is often practical. Increase waste for small batches, patterned layouts, many cuts, or long carry distances. If you stage multiple pours, add waste for each setup and cleanup cycle.
The ratio splits the effective mix mass by weight using parts. A 1:2 ratio means one part binder and two parts chips, so binder becomes one-third of the total and chips become two-thirds of the total.
The binder mass is divided into resin and hardener using the selected parts ratio. For example, 2:1 means resin is two-thirds of binder mass and hardener is one-third, keeping the total binder unchanged.
The sealer output is based on one coverage rate entry. If your system uses two coats, either halve the coverage value or multiply the output by two. Always follow the sealer manufacturer’s spread rate for your finish.
Yes. Use “Known total area” if you have CAD totals, or keep the dimension method and subtract deductions for cutouts. For highly irregular spaces, measure net area carefully and use a higher waste allowance.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.