Sand & Gravel Weight Formula:
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Definition: This calculator estimates the weight of sand or gravel needed based on area, depth, and material density.
Purpose: It helps homeowners and contractors determine how much material to order for landscaping and construction projects.
The calculator uses the formula:
Where:
Explanation: The formula calculates volume and converts it to weight, then converts pounds to tons (2000 lbs = 1 ton).
Details: Proper calculation prevents over-ordering (saving money) or under-ordering (preventing project delays).
Tips: Enter the area in square feet, depth in feet, and material density (default 100 lb/ft³). All values must be > 0.
Q1: What's a typical density for sand and gravel?
A: Sand typically ranges 90-100 lb/ft³, gravel 100-130 lb/ft³ depending on type and moisture content.
Q2: How do I measure my project area?
A: For rectangular areas: length × width. For circles: π × radius². For irregular shapes, break into smaller rectangles.
Q3: What depth should I use for different projects?
A: Patio base: 4-6 inches, walkways: 3-4 inches, drainage: 6-12 inches, driveways: 8-12 inches.
Q4: How do I convert inches to feet for depth?
A: Divide inches by 12 (e.g., 6 inches = 0.5 feet).
Q5: Does this include delivery fees?
A: No, contact local suppliers for delivery costs based on the calculated weight.