Double-depth and triple-depth burial plots are single graves that hold two or three caskets stacked vertically instead of side by side, letting a family share one location, one marker, and usually one purchase price that runs less than buying multiple adjacent plots. The tradeoff is real: the grave has to be dug much deeper, the lowest vault has to bear enormous weight, and pulling anyone back out later is significantly harder than with a standard grave.
How the Stacking Works
In a double-depth grave, the first casket goes in at roughly seven feet down. When the second burial is needed, cemetery staff excavate above the existing vault and place the new casket at standard depth on top of it.1International Cemetery, Cremation & Funeral Association. What is Double Depth Triple-depth pushes the lowest casket down to roughly 10 to 12 feet, with two more positions above it. At every level, enough earth has to remain between containers and above the top container to keep the ground stable; most jurisdictions require at least 18 to 24 inches of soil cover over the uppermost casket.
Surface dimensions haven’t changed to accommodate the extra depth. Plots typically run 4 by 8 feet to 5 by 10 feet, similar to any single grave. Federal VA cemeteries use 5-by-10-foot plots and dig to 7 feet for double-depth interments, while sections with lawn crypts can use plots as narrow as 3 by 8 feet.2National Cemetery Administration. Cemetery Components – Burial Areas and Burial Sections
Ground Conditions Can Rule It Out
Not every site can support a stacked grave. The water table is the main obstacle. If groundwater sits within a few feet of the surface, digging 10 or 12 feet down produces a flooded hole and creates buoyancy problems where sealed vaults try to float. In those areas, triple-depth may not be offered at all, and even double-depth may not be feasible.
Reputable cemeteries survey the ground before selling a multi-depth plot. Ground-penetrating radar, manual probing, and soil boring are used to map what’s underground, including existing graves, rocks, utility lines, and saturation. If the ground can’t support the required depth, the cemetery should tell you and offer a different plot or a side-by-side arrangement instead.
Vaults for Stacked Burials
The lowest container in a stacked grave carries the weight of everything above it, which can exceed several thousand pounds once soil, additional caskets, and additional vaults are counted. That’s why cemeteries generally require reinforced outer burial containers rather than basic grave liners for multi-depth interments. Reinforced concrete lawn crypts and heavy-duty burial vaults are standard, and some state specifications call for vaults capable of withstanding 5,000 pounds per square foot and over 4,000 pounds of total load after burial.
Vault prices span an enormous range. A basic concrete vault starts under $1,000; premium bronze-lined or copper models can run well above $10,000. In a stacked configuration, the bottom vault needs to be the strongest, so expect the lower position to cost more than the upper ones. The cemetery or funeral home must give you a printed outer burial container price list before showing you options, so you can compare before committing.3Federal Trade Commission. Complying with the Funeral Rule You can also buy a vault from a third-party vendor, and the cemetery cannot charge a handling fee for using an outside container.
What It Really Costs Compared to Side-by-Side
A double-depth plot usually costs less than two adjacent single plots. You’re purchasing one set of surface rights instead of two. Some cemeteries price the double-depth right at roughly 60 percent above the base single-plot price, which still comes in cheaper than paying full price twice.
The picture gets more complicated once you add the fees. Opening and closing a grave for the second burial in a double-depth plot can run anywhere from several hundred to over $1,500, depending on the cemetery and region. Each burial also triggers administrative charges for processing interment authorizations. And because the lower vault has to be heavier-duty, container costs for the first burial are higher than for a standard grave.
Add all of it up before assuming the stacked arrangement saves money. For some families the savings are meaningful. For others, especially when the two burials are decades apart, the accumulated fees narrow the gap considerably. The bigger draw for most families is togetherness: one location, one marker, one place to visit.
Mixing Caskets and Cremation Urns
Stacked plots don’t have to hold only full-sized caskets. Many cemeteries let cremation urns share a plot with a casket, which opens up flexible family arrangements. A common setup places one casket at standard depth with one or two urns above it. Some cemeteries permit up to four or even six urns in a single full-sized plot, though each additional interment usually needs its own authorization and fee.
If your family mixes cremation and traditional burial preferences, a double-depth plot can hold both. Confirm the cemetery’s policy on mixed interments before you buy, because policies vary. The right question is how many total interment rights the plot includes and whether adding an urn counts against that capacity or can be purchased separately.
You’re Buying Rights, Not Land
A point that catches many families off guard: purchasing a burial plot doesn’t mean owning the land. What you buy is a set of interment rights, sometimes called a “right of interment” or “certificate of burial rights,” giving you authority over who is buried in that space and how it’s memorialized. You can’t build on it or use it for anything other than burial. The cemetery keeps the land.
For a stacked plot, this matters because the rights document should specify how many interments the plot allows. A double-depth plot with rights for two burials means exactly that. If you later want to add a third interment, such as an urn, you may have to buy an additional right of interment. Read the document carefully before signing and confirm the maximum number of interments it covers.
Markers That Work Across Multiple Burials
A stacked plot usually uses a shared marker built to hold multiple names and dates as they’re added. Flat bronze or granite markers set flush with the ground are the most common choice because they don’t interfere with the heavy equipment needed to reopen the grave. If the cemetery permits upright monuments, they generally have to sit at the head of the plot where they won’t block future excavation. Confirm the cemetery’s specific rules on size, material, foundation requirements, and whether you can use an outside monument dealer.
How the Later Burials Actually Happen
The first burial goes to the lowest level. The casket and vault are placed at full excavated depth, backfilled, and the surface is restored. Everything above stays available for future use.
When the next burial is needed, cemetery staff carefully remove the topsoil and any protective plates without disturbing the vault below. This is precision work, particularly on graves that have been in place for years. The soil between levels acts as both a structural buffer and a safeguard during the reopening. Once the upper container is placed and secured, the grave is backfilled and compacted. From excavation to final closing usually takes several hours after the service.
Triple-depth follows the same sequence twice. Each reopening demands the same care to avoid damaging the containers below, and not every cemetery has the equipment or experience to manage it safely. If you’re considering triple-depth, ask the cemetery how many they’ve actually performed.
Disinterment Is Much Harder in a Stacked Grave
This is where stacked plots create a problem side-by-side arrangements don’t. To exhume someone from the bottom of a double-depth or triple-depth grave, every container above them has to come out first. That means multiple disinterments, temporary storage of the upper remains, the exhumation itself, and then reinterment of everything that was moved. Cost and logistical burden compound with each layer.
Disinterment requires legal authorization in every state. The typical process involves a permit from the state registrar or health department, signed consent from the next of kin, and often a court order if the family disagrees. In federal cemeteries the standard is stricter still: disinterment is treated as a last resort, requires notarized affidavits from every close living relative, and must be done entirely at the family’s expense.4eCFR. 36 CFR 12.6 – Disinterments and Exhumations The family pays for opening and closing the grave, engaging a funeral director, recasketing the remains, and rehabilitating the gravesite.
Think honestly about whether circumstances could change before you commit. Families relocate, relationships shift, and what feels permanent today may not feel permanent in twenty years. Stacked burial isn’t a bad choice, but going in with clear eyes about how hard it is to undo matters.
Passing Unused Rights to Family
When the original plot owner dies, any unused interment rights need to pass to someone. If the owner named the plot in a will, the transfer is straightforward. If not, burial rights generally follow the same intestate succession rules as other property: surviving spouse first, then children, parents, siblings, and on down.
Transferring rights usually means presenting the original certificate of burial rights to the cemetery office along with documentation of the relationship to the deceased owner. Notarized documents and certified copies of wills or trusts are typically enough. When the original owner died long ago and potential heirs are numerous, some cemeteries require a genealogical record, written permission from as many heirs as possible, and an indemnification agreement protecting the cemetery from later disputes.
If the certificate is lost, cemeteries can usually work around it, but expect delays and extra documentation. Keep the certificate with your other estate papers and make sure your executor knows it exists. For a stacked plot with unused space, that certificate controls who gets to use the remaining positions, and sorting it out afterward is time-consuming and occasionally contentious.