Measure ceiling area, choose board size, set wastage. Estimate boards, channels, hangers, and finishing materials. Download neat reports for site purchasing today.
| Case | Length (m) | Width (m) | Layers | Wastage | Board (m) | Net Area (m²) | Boards (sheets) |
|---|---|---|---|---|---|---|---|
| A | 6.00 | 4.00 | 1 | 10% | 2.4 × 1.2 | 24.00 | 10 |
| B | 8.00 | 5.00 | 2 | 12% | 2.4 × 1.2 | 40.00 | 32 |
| C | 10.00 | 7.00 | 1 | 8% | 3.0 × 1.2 | 70.00 | 22 |
This calculator estimates ceiling gypsum sheet quantity, finishing materials, and a practical framing allowance for planning. It suits rectangular rooms, corridors, and typical suspended ceiling grids. It separates net ceiling area from deductions, then scales consumption by layers and wastage to reduce site shortages.
Use measured length and width whenever possible, because framing lines depend on room geometry. If only area is known, the tool assumes a square footprint for layout items and flags that assumption. Board size, layers, and wastage strongly influence sheet counts, while screws, tape, and compound factors tune finishing quantities.
Results include boards, screws, joint compound, and joint tape, plus perimeter angle length. The calculator also provides main channel length, furring channel length, and hanger count using your chosen spacing values. These figures support quick procurement lists and help compare alternatives such as different sheet sizes or single versus double layers.
Enter optional unit prices to generate an itemized cost breakdown and an estimated total. Leave any price as zero to exclude it from the sum. This approach keeps the tool flexible across markets and lets you isolate drivers, for example the impact of labor rate changes or higher waste allowances on overall ceiling cost.
Before ordering, verify ceiling levels, service penetrations, and access panel locations, since they can increase cutting waste. Confirm spacing and component types with project specifications and local practice. For complex shapes, split the ceiling into simple rectangles, run the calculator for each zone, and add the totals. For acoustic targets, record board thickness and insulation presence, then adjust layers and wastage accordingly. When estimating fasteners, align screws per square meter with the selected framing system and edge support. Finally, review delivery lengths for channels and angles, and round up to full stock lengths to minimize offcuts. Keep a small contingency for repairs, rework, and design changes.
Enter excluded areas as deductions in square meters. The net area becomes ceiling area minus deductions. This reduces boards, finishing materials, and cost, while keeping framing estimates aligned with the remaining ceiling footprint.
Use 5–8% for simple rooms with good planning, and 10–15% for heavy cutting, many services, or tight delivery schedules. Increase wastage for small rooms where offcuts cannot be reused.
Each layer adds another full surface area of boards and finishing work. The tool multiplies net area by the number of layers before calculating boards, screws, tape, and compound, then applies wastage.
No. They are planning allowances based on spacings and a rectangular layout. Always verify with drawings, manufacturer guidance, and local practice, especially for heavy fixtures, seismic details, or unusual ceiling geometry.
Select the area-only mode. The tool estimates layout items using a square footprint with the same area, and it displays a warning. For more accurate channel and hanger lines, use measured length and width.
Use recent unit rates, include delivery lengths for channels, and separate zones with different details. For labor, apply a rate per square meter that matches your crew, height, and finish level, then compare scenarios.
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.