Why Monuments Sink and What Cemeteries Are Doing About It
If you have visited a loved one's memorial and noticed the marker leaning, sinking, or sitting unevenly in the ground, you are not imagining it and you are not alone. It is one of the most common concerns families bring to cemeteries, and it happens far more often than most people realize.
The good news is that there is a reason it happens, and increasingly, there is a solution that prevents it from happening in the first place.
Why Do Monuments Sink?
Most monuments and markers are set into the ground using a concrete foundation poured directly into the soil. Concrete has been the industry standard for over a century. It is familiar, widely available, and relatively straightforward to work with.
The problem is that concrete is a large, rigid mass. And the ground it sits in is anything but rigid.
Soil moves. It expands when it freezes and contracts when it thaws. It shifts with rainfall, drainage, and seasonal temperature changes. Over time, that constant movement works against a concrete foundation, cracking it, tilting it, and causing the marker above it to slowly move out of position.
This is not a sign of neglect on the part of the cemetery. It is a natural consequence of using a rigid material in an environment that is constantly in motion.
What Is Frost Heave and Why Does It Matter?
In colder climates, one of the most common causes of monument settling is frost heave. When water in the soil freezes, it expands and pushes upward against anything in its path, including a concrete foundation. When the ground thaws, it contracts again. This cycle of expansion and contraction, repeated season after season, gradually shifts the foundation out of its original position.
The result is a marker that sits lower on one side, leans at an angle, or gradually sinks into the ground over the years.
Concrete, because of its rigidity, has no way to accommodate this movement. It either holds firm and cracks under the pressure, or it moves with the ground and loses its original position. Either way, the memorial is affected.
What Cemeteries Are Doing About It
A growing number of cemetery operators across North America are moving away from concrete foundations entirely, replacing them with an engineered system designed to work with the ground rather than against it.
MonuGrid® is a geocell-based foundation system that uses an interlocking cellular structure to distribute the weight of a monument evenly across a wider surface area. Unlike concrete, it is not rigid. It is designed to flex with natural ground movement, which means it does not crack, does not heave, and does not cause the marker above it to shift out of position.
For families, the difference is straightforward. A memorial set on MonuGrid® is engineered to stay exactly where it was placed, season after season, for decades to come.
What Is a Memorial Assurance Plan?
Some cemeteries that have adopted MonuGrid® are also introducing a Memorial Assurance Plan, a program that takes the responsibility for long-term memorial stability off the family's shoulders entirely.
Under a Memorial Assurance Plan, a small fee is included at the time of the original memorial purchase. In return, the cemetery commits to maintaining the foundation for the lifetime of the memorial at no additional cost to the family, ever.
For families, this means one less thing to worry about when visiting a loved one's resting place. The memorial will be cared for, adjusted if needed, and kept in dignified condition, not because the family has to ask, but because the cemetery has made that commitment from day one.
What to Ask Your Cemetery
If you have concerns about the condition of a memorial, or if you are in the process of selecting a cemetery for a loved one, these are worth asking:
What type of foundation system do you use for monuments and markers? A cemetery that uses an engineered system like MonuGrid® is investing in long-term stability, not just the lowest upfront cost.
Do you offer a Memorial Assurance Plan or any form of foundation guarantee? A cemetery that stands behind its foundations long-term is one that takes the dignity of the memorial seriously.
What happens if a marker settles or needs to be re-leveled? Understanding the process and who bears the cost before it happens gives families clarity and peace of mind.
A settled marker is not something any family should have to manage alone. The cemeteries doing this right are the ones building systems that take that burden away entirely.
