* Fieldstone is variable: Fieldstone is a naturally occurring rock, and its density and composition can vary greatly. Different types of rock (granite, sandstone, limestone, etc.) have different weights per volume.
* Shape and form: A perfectly round boulder of 18 inches will weigh less than a boulder that is irregularly shaped or has many crevices.
* Porosity: Some fieldstones are more porous than others, meaning they have air pockets within the stone. This affects their overall weight.
To get a better estimate of weight, you would need:
1. The type of fieldstone: Knowing the rock type would give you a general idea of its density.
2. The shape and form of the boulder: A more precise estimate is possible if you can describe the shape.
General Guidelines:
* A rough estimate for a typical fieldstone boulder is around 100-150 pounds for an 18-inch diameter. This is a very broad range, and the actual weight could be significantly higher or lower.
* Contact a local landscaping or stone supplier: They can provide you with a more accurate estimate based on their experience with fieldstones in your area.
Important Safety Note: Handling heavy rocks like fieldstones requires careful planning and safety precautions. It's best to use proper lifting techniques and get help from others if necessary.
