Usability includes methods of measuring usability, such as needs analysis and the study of the principles behind an object's perceived efficiency or elegance.
Crowne Burial Vault. The burial vault is a waterproof container designed for earth burial. Made in America and constructed of high technology polymer, it is strong enough to withstand the weight of earth-moving and cemetery maintenance equipment.
Burial Vaults Cost. Typical costs: Expect to pay between $400 and $1,500 for a basic grave box or liner, typically made of unlined concrete with holes in the bottom to let water in. Prices vary depending on location, and the thickness and type of materials.