A: 1-3 inches

A: Hi, It's impossible to determine the exact number of 20-pound bags needed without knowing the dimensions of the area you want to fill (length, width, and desired depth). However, a general guide can be provided. To calculate the number of bags needed, you'll need to: Calculate the area: If you have a specific area (e.g., a rectangular patio), multiply the length by the width to get the square footage. If you have an area that is not rectangular, you'll need to break it down into smaller shapes and calculate the area of each. Determine the desired depth: Decide how thick you want the layer of pebbles to be. Calculate the volume: Multiply the area (in square feet) by the desired depth (in feet) to get the volume (in cubic feet). Convert cubic feet to cubic yards: Divide the cubic feet by 27 (since there are 27 cubic feet in a cubic yard). Determine the weight per cubic yard of pebbles: Mexican beach pebbles typically weigh around 2600 lbs per cubic yard. Calculate the total weight of pebbles needed: Multiply the cubic yards by the weight per cubic yard. Calculate the number of bags needed: Divide the total weight by the weight per bag (20 pounds).