Monuments horizontal for tw

The monument which stands still burials of two people and immortalizes memory of them, call double.
Similar memorials build on cemeteries most often for the following reasons:
Material benefit – installation several unary monuments can cost considerably dearer, than integral double (or family) a monument.
It is more convenient to relatives to look after a strong double monument which is in one place, than several unary, located at some distance from each other or on various cemeteries.
Benefit on time expenditure – on the eve of the All Souls' Days relatives visit one place where remains of close people are based, there is no need to go round several burials.