1. Measure the area
Record the length and width of your patio, walkway, or wall face in feet. For curved paths, break the area into straight sections or use the trapezoid option.
What is stone coverage area?
Stone coverage area is the total surface measured in square feet that will be covered with stone material. To calculate stone coverage, measure the project length and width in feet and multiply them together. Different stone types have different coverage rates per ton. Flagstone covers 80-100 sq ft per ton at 1.5 inches thick, while river rock covers 50-75 sq ft per ton at 2-3 inches deep. Knowing the exact area helps you order the right amount and get accurate quotes from suppliers.
Bermula
How to Calculate Stone Coverage
To calculate stone coverage, measure the project area in square feet. For rectangular patios and walkways, multiply length by width. For circular features, use the circle formula with the diameter. Add 10% for waste from cutting and fitting irregular stone pieces.
2. Select the shape
Choose Segi Empat Tepat for straight areas, Bulatan for round features, or Trapezoid for tapered walkways and irregular areas.
3. Estimate materials and cost
View area in square feet. Enter a price per square foot for your stone type to estimate total material cost. Divide by coverage per ton for tonnage estimates.
Rujukan pantas
Rujukan
1 ekar = 43,560 kaki persegi
1 ela persegi = 9 kaki persegi
1 meter persegi = 10.764 kaki persegi
1 inci persegi = 0.00064516 kaki persegi
Formula asas
Formula Asas untuk Luas
Luas ialah jumlah ruang yang diduduki oleh bentuk 2 dimensi. Bentuk itu boleh jadi lantai, dinding, taman permainan atau padang. Formula paling mudah untuk luas digunakan untuk sebarang bentuk segi empat tepat:
Area = Length × Width
Ukur panjang dan lebar ruang dalam kaki. Darabkan dua nilai tersebut untuk mendapatkan luas dalam kaki persegi. Bilik segi empat tepat yang 12 kaki (3.66 meter) panjang dan 10 kaki (3.05 meter) lebar mempunyai luas 120 sq ft (11.15 sq m).
Ela persegi ialah luas yang diukur dalam ela, dan meter persegi ialah luas yang diukur dalam meter. Ukur dalam kaki, cari luas dalam kaki persegi, kemudian tukar kepada unit yang anda perlukan.
Untuk bilik bentuk L, bahagikan lantai kepada 2 bahagian segi empat tepat, kira setiap luas, dan tambahkan keputusan. Tukarkan semua ukuran kepada unit yang sama sebelum mendarab, jika dimensi anda dalam unit berbeza seperti inci dan kaki.
Formula bentuk
Formula Luas untuk Bentuk Berbeza
The Stone Calculator supports rectangle and circle formulas for patio, walkway, and landscaping stone projects.
Bentuk Segi Empat Tepat
Calculate stone area for rectangular patios
Menggunakan ukuran dalam kaki: Area (ft²) = Length × Width. A rectangular patio 20 feet long and 15 feet wide has an area of 300 square feet. At about 90 sq ft per ton of flagstone, this requires about 3.3 tons plus 10% waste.
Bentuk Bulatan
Calculate stone area for circular features
Menggunakan ukuran dalam kaki: Area (ft²) = π × radius². A circular patio with a 16-foot diameter (8 ft radius) has an area of about 201 square feet. Use this formula for round fire pit pads, circular garden accents, and decorative stone features.
Faktor pembaziran
Menambah 10% Lebihan untuk Bahan
Tambahkan 10% lebihan kepada luas yang dikira untuk mengambil kira pembaziran bahan semasa pemotongan, pecah dan pemadanan corak. Faktor pembaziran ini terpakai untuk lantai, karpet, projek jubin dan bahan landskap.
Luas Asal100 sq ft
+10%
Jumlah Pesanan110 sq ft
Total Material = Area × 1.10
Bilik dengan luas lantai 200 sq ft memerlukan 220 sq ft bahan: 200 × 1.10 = 220 sq ft. Tingkatkan lebihan kepada 15% (darab dengan 1.15) untuk corak pemasangan lantai pepenjuru atau projek jubin kompleks dengan banyak potongan. Kalkulator Kaki Persegi termasuk medan faktor pembaziran untuk pengiraan ini.
Soalan Lazim
Soalan Lazim
How do I calculate stone coverage per square foot?
Measure the area length and width in feet, multiply to get square feet. Stone coverage depends on the stone type and thickness. For flagstone, one ton covers about 80-100 sq ft at 1.5 inches thick.
How many square feet does a ton of stone cover?
One ton of flagstone covers 80-100 sq ft at 1-1.5 inches thick. A ton of river rock covers 50-75 sq ft at 2-3 inches deep. A ton of crushed gravel covers 80-100 sq ft at 2 inches deep.
How much does flagstone cost per square foot?
Flagstone costs $3 to $7 per square foot for materials only. Installed flagstone patios cost $15 to $30 per square foot including base preparation, stone, and labor.
How do I calculate stone for a patio?
Measure the patio length and width in feet and multiply to get square footage. Add 10% for waste and cuts. For a 200 sq ft patio, order about 220 sq ft of stone.
How do I calculate stone for a curved walkway?
For curved walkways, multiply the average width by the total length. For circular areas, use the circle calculator with the diameter. For irregular curves, split the path into straight sections.
How much stone do I need for a retaining wall?
Calculate the face area of the wall: height × length = square feet. A wall 3 feet tall and 20 feet long has 60 sq ft of face area. Natural stone for walls costs $10 to $25 per sq ft of face area.