How to Measure the Area for 20mm Granite Paving
As a supplier of 20mm granite paving, I've encountered numerous customers who are eager to understand the process of measuring the area for their granite paving projects. Accurate area measurement is crucial as it directly impacts the quantity of granite needed, the overall cost, and the success of the project. In this blog, I'll guide you through the steps of measuring the area for 20mm granite paving, ensuring you have all the information you need to make informed decisions.
Why Accurate Measurement Matters
Before diving into the measurement process, it's essential to understand why accurate measurement is so important. When it comes to granite paving, purchasing the right amount of material is crucial. Ordering too little granite can result in delays as you wait for additional stock, while ordering too much can lead to unnecessary expenses. Accurate area measurement helps you avoid these issues, ensuring that your project stays on track and within budget.
Tools You'll Need
To measure the area for 20mm granite paving, you'll need a few basic tools:
- Measuring Tape: A reliable measuring tape is essential for taking accurate measurements. Make sure it's long enough to measure the length and width of the area you plan to pave.
- Notebook and Pen: Keep a notebook and pen handy to record your measurements. This will help you stay organized and ensure you don't forget any important details.
- Calculator: A calculator will come in handy for performing calculations, such as multiplying the length and width to determine the area.
Measuring a Rectangular or Square Area
The simplest type of area to measure is a rectangular or square area. To measure a rectangular or square area, follow these steps:
- Measure the Length: Use your measuring tape to measure the length of the area you plan to pave. Make sure to measure from one end to the other in a straight line.
- Measure the Width: Next, measure the width of the area. Again, measure from one side to the other in a straight line.
- Calculate the Area: Once you have the length and width measurements, multiply them together to calculate the area. For example, if the length is 10 meters and the width is 5 meters, the area would be 10 x 5 = 50 square meters.
Measuring an Irregularly Shaped Area
Measuring an irregularly shaped area can be a bit more challenging, but it's still possible with the right approach. To measure an irregularly shaped area, follow these steps:
- Divide the Area into Smaller Shapes: Start by dividing the irregularly shaped area into smaller, more manageable shapes, such as rectangles, squares, triangles, or circles. This will make it easier to measure each individual shape and calculate its area.
- Measure Each Shape: Use your measuring tape to measure the length and width of each rectangular or square shape. For triangular shapes, measure the base and height. For circular shapes, measure the radius.
- Calculate the Area of Each Shape: Once you have the measurements for each shape, use the appropriate formula to calculate its area. For rectangles and squares, multiply the length and width. For triangles, multiply the base by the height and divide by 2. For circles, multiply the radius squared by π (approximately 3.14).
- Add Up the Areas: Finally, add up the areas of all the individual shapes to get the total area of the irregularly shaped area.
Accounting for Waste
When calculating the amount of granite you need, it's important to account for waste. Waste can occur due to cutting errors, irregularly shaped areas, or damage during installation. As a general rule, it's recommended to add an additional 5-10% to your total area measurement to account for waste. This will ensure that you have enough granite to complete your project without running out.
Considering Joint Width
In addition to accounting for waste, you'll also need to consider the joint width when calculating the amount of granite you need. Joint width refers to the space between each piece of granite paving. The joint width can vary depending on the design and style of your paving project, but a common joint width is 5-10mm.


To account for joint width, you'll need to add the joint width to the length and width of each piece of granite paving. For example, if you're using 600mm x 600mm granite paving with a 5mm joint width, the effective size of each piece would be 605mm x 605mm.
Using Online Calculators
If you're not comfortable performing the calculations yourself, there are many online calculators available that can help you determine the amount of granite you need. These calculators typically require you to enter the length, width, and shape of the area you plan to pave, as well as the size of the granite paving and the joint width. The calculator will then provide you with an estimate of the total area and the amount of granite you need.
Conclusion
Measuring the area for 20mm granite paving is an important step in any paving project. By following the steps outlined in this blog, you can ensure that you have accurate measurements and calculate the amount of granite you need with confidence. Remember to account for waste and joint width, and consider using online calculators if you're not comfortable performing the calculations yourself.
If you're in the market for high-quality 20mm granite paving, look no further. As a leading supplier of Honed Granite Tile Flooring, G603 Granite Tiles, and Exterior Granite Wall Cladding, we offer a wide range of granite products to suit your needs and budget. Our team of experts is always available to provide you with advice and guidance on your paving project. Contact us today to discuss your requirements and get a free quote.
References
- "Measuring Areas and Volumes." Math Is Fun. Accessed [Date].
- "How to Measure an Irregularly Shaped Area." DIY Network. Accessed [Date].
- "Calculating the Amount of Tile You Need." The Spruce. Accessed [Date].





