Outer burial containers are required by most cemeteries. Families may select either a liner or a burial vault.
A liner has a 5 sides with a lid and is often constructed of concrete but some cemeteries will accept a PVC liner. Please confirm with the cemetery as they have their own regulations about the type of liner they accept and even if a outer burial container is required.
Vaults are constructed with concrete, plastic liner with a tongue and groove seal at the top and are reinforced. Some vaults offer customization, with photographs, different themes (like a sunrise/sunset, seasons) or an American Flag.