Infants and young children require the proper size vault and often the cost of a infant or young child's death effects the family financially at a unprepared time. Many vault makers are now adding a urn/casket vault combination to offset this common problem. We have many standard small adult vaults but have been able to offer some of the newest types now on the market. The most common material used in burial vaults are approved by cemeteries across the nation are made of a strong polystyrene material and sometimes stone or cement. The most economical and water protection comes from polystyrene and a combination of strong fibers.