Materials for earthbag construction are in most cases inexpensive, abundant, and accessible. Grain bags and barbed wire are available throughout most of the world or can be imported for a fraction of the cost of cement, steel, and lumber. Dirt can be harvested on site or often hauled in for the cost of trucking. Developed countries have the advantage of mechanized gravel yards that produce vast quantities of "reject fines" from the by-product of road building materials. Gravel yards, bag manufactures, and agricultural supply co-ops become an earthbag builder's equivalent of the local hardware store. When we switched to earthen dome construction, we kissed our lumberyard bills goodbye.
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