Start with area per sheet
A 1.2 m × 2.4 m sheet covers 2.88 m². Confirm that the entered length and width match the product you will actually buy.
086 · REAL ESTATE & BUILD
Deck, Plywood & Sheet Material Quantity Calculator
Calculate required sheets, area-based offcut, and estimated cost from target area, sheet dimensions, layout direction, and price per sheet.
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SHEET MATERIALThis is an area-based reference, not cutting optimization.
Layout Direction
RESULT · Calculation result
Required Sheets7
Area per Sheet2.88 m²
Purchased Area20.16 m²
Offcut Area0.16 m²
Offcut Rate0.79%
Layout Direction0°
Estimated Cost175,000
Formula
Sheet Area = Length × Width
Required Sheets = ceil(Target Area ÷ Sheet Area)
Offcut = Purchased Area − Target Area
Estimated Cost = Required Sheets × Price per Sheet
Sheet Area = Length × Width
Required Sheets = ceil(Target Area ÷ Sheet Area)
Offcut = Purchased Area − Target Area
Estimated Cost = Required Sheets × Price per Sheet
HOW TO USE
How to use
- 01
Enter the target area in m².
- 02
Enter sheet length and width in meters.
- 03
Choose a 0° or 90° reference direction.
- 04
Required sheets are rounded up to a whole sheet.
- 05
Offcut is the purchased sheet area minus target area.
- 06
Enter a price per sheet to estimate total cost.
SHEET MATERIAL QUANTITY
Sheet quantity and layout guide
Round the sheet count up
20 m² ÷ 2.88 m² is about 6.94, so the purchase reference is 7 full sheets. A decimal area result cannot be purchased as a fraction of a sheet.
Area remainder is not cut-layout remainder
Seven sheets provide 20.16 m², leaving 0.16 m² by area. That does not mean one reusable 0.16 m² piece remains; real cutting can split the remainder into unusable shapes.
Orientation is a planning reference
The theoretical sheet count can stay the same at 0° and 90°, while long-edge placement, grain direction, and seam positions change. Treat orientation as layout information, not a different area formula.
Check thickness and grade separately
This tool calculates quantity from length and width. Structural plywood and decking can also depend on thickness, grade, support spacing, and loading, which are separate from the area count.
Estimate material cost per sheet
If 7 sheets are needed at 30,000 per sheet, the material estimate is 210,000 in the entered currency. Cutting, delivery, accessories, and labor are separate.
IMPORTANT NOTES
Important notes
- The base result is an area-based reference, not cutting optimization.
- 0°/90° indicates orientation only.
- Offcut is area remaining, not reusable piece geometry.
- Structural safety is not calculated.
- Cost uses the price you enter.
- Before purchase, verify grade, thickness, dimensional tolerance, and whether the sheet size can be handled at the site.
FAQ
Frequently asked questions
01What is the area of a 1.2×2.4 m sheet?+
2.88 m².
02How many sheets for 20 m²?+
ceil(20÷2.88)=7 sheets.
03What is the offcut?+
20.16−20=0.16 m².
04Does direction change the count?+
The area-based count can stay the same although real cutting layouts can differ.