What is a burial vault

For families · US · Last reviewed Aug 29, 2026

A burial vault is a container that goes into the grave, and the casket goes inside it. It’s concrete, it’s lined and sealed, and it does two jobs. It carries the weight of the earth above it along with the mowers and the backhoe that pass over that grave for the next hundred years, and it keeps ground water off the casket.

That first job is the one that matters to the cemetery. Ground that has nothing holding it up settles into a dip, and a field of dips is a maintenance problem with no end to it. So the cemetery asks for a container.

Vault or grave liner, and the real difference

A grave liner is a plain concrete box. It holds the ground up and that’s all it does. It isn’t lined, it isn’t sealed, and it usually has drainage holes so ground water runs straight through it. Some places call it a gravebox.

A burial vault is the same idea carried further. Concrete outer shell, a liner inside it made of plastic, stainless steel, copper or bronze, and a seal at the joint. Lined and sealed is what makes it a vault, and that’s the whole difference between the two.

You’ll hear both of them called an outer burial container. That’s the umbrella term the federal rules use, and 16 CFR 453.1 defines it to cover any container placed in the grave around the casket, “including, but not limited to, containers commonly known as burial vaults, grave boxes, and grave liners.” When someone at a cemetery says an outer burial container is required, they haven’t yet told you which one, and the two aren’t priced anywhere near alike.

No state law requires one. Cemeteries do.

The Federal Trade Commission is direct enough about this that it wrote the sentence for the industry and made every funeral home print it, word for word, on its outer burial container price list:

“In most areas of the country, state or local law does not require that you buy a container to surround the casket in the grave. However, many cemeteries require that you have such a container so that the grave will not sink in. Either a grave liner or a burial vault will satisfy these requirements.”

That’s 16 CFR 453.3(c)(2), the Funeral Rule. The same rule makes it a deceptive act to tell a family that state or local law, or a particular cemetery, requires a container when it doesn’t. A fifty-one jurisdiction review for this site found no state statute requiring a family to buy a vault or a liner. The FTC wrote “in most areas of the country” rather than “nowhere,” and this page holds to the same limit: a vault or grave liner is a cemetery requirement rather than a legal one.

The requirement comes from the cemetery’s own rules. State cemetery law gives a cemetery authority the power to make and enforce rules for the management of its own grounds, and a container requirement is one of those rules. Washington is the clean illustration: RCW 68.04.165 defines outer burial container to include vaults and liners, and Chapter 68.24 RCW gives the cemetery authority its rulemaking power. It’s private rulemaking on private ground, and it’s enforceable. If your cemetery requires one, you’re buying one, and no amount of knowing the law changes that.

The requirement isn’t a racket. A cemetery that lets its ground settle stops being a place anyone wants to visit, and the money to regrade a section comes from somewhere. What isn’t honest is the word “required” doing double duty at the table, where it can quietly mean “the cemetery requires a container” and get heard as “the law requires this $3,500 vault.”

Two questions clear it up. Does the cemetery require a container, and where is that written. And does the cemetery accept a grave liner, or does it specifically require a sealed vault. The FTC’s own sentence says either a liner or a vault satisfies the sinking problem, but the cemetery’s written rule is what governs your grave, so get it in writing.

What the spread actually looks like

One vault catalog on file, posted for 2026 by a funeral home in New York, runs from $2,024 to $15,960 for burial containers. That’s the same hole in the ground either way.

The bottom of that list is the grave liner, printed in the catalog’s own words as “Concrete (non-sealing / non-lined),” at $2,024. From there the sealed vaults climb: $2,350 and $2,555 for the two the catalog calls Strentex lined, $2,855 for one lined in a material the catalog calls Marbelon, $3,574 for each of the three stainless steel models, $4,360 for the copper lined one, and $15,960 for the bronze lined one at the top.

The liner saves $326 against the least expensive vault on this particular catalog. Not nothing, and not the large saving people expect from the plain option. On another list the gap is wider. You find out by reading the list in front of you.

Three different models sit at exactly $3,574. All three are the same stainless steel lining with different names and ornamentation, one of them a veteran design. At that point you’re choosing how it looks, not how it performs, and that’s a fine thing to choose as long as you know that’s what you’re doing.

The top of the list is almost eight times the bottom. Both ends of that range are on the same page of the same catalog.

Urn vaults, the small version for a cremation burial, run $895 to $1,350 on that same catalog.

What the premium models are selling

Moving up that catalog is almost entirely a change in the liner and the seal. The catalog names its linings in its own words and its prices climb in this order: Strentex, then Marbelon, then stainless steel, then copper, then bronze.

Manufacturers back sealed models with written warranties. The catalog on file prints no warranty terms at all, so anything about length or coverage has to come from the manufacturer’s own document. Ask for it in writing before the warranty is part of why you’re buying.

A sealed vault protects the grave and it protects the casket. It doesn’t preserve the person inside it. Federal law is unusually blunt about this: 16 CFR 453.3(e) makes it deceptive to represent that funeral goods will delay natural decomposition for a long-term or indefinite time, or that they have protective features when they do not. If the seal is worth it to you for what it actually does, buy it without a second thought. If you were buying it because of what you assumed it did, that’s worth knowing before the number is on a contract.

The minute this actually gets decided

Almost nobody decides this in advance. The vault comes up at the arrangement table, usually after the casket, often as a catalog or a wall of cutaway samples, and it comes up when you’re tired and have already made twenty choices. The number sitting next to the one that looks right isn’t a number you have any way to size up on the spot.

Reading the spread beforehand is how you walk in already knowing that the range is wide, that the container is a cemetery rule and not a law, and that the plain one satisfies the same rule the expensive one does.

What to do with this

Ask the cemetery for its rules in writing, and read what they actually require.

Ask the funeral home for the outer burial container price list. It’s a separate list from the general price list, you’re entitled to see it before anyone starts talking about which vault, and the Funeral Rule sentence above is printed right on it.

Ask what the least expensive container that satisfies your cemetery costs, and ask for that number before you look at the display. Displays are built to be walked through from the top down.

And ask whether you may buy the container somewhere else. The Funeral Rule bars a provider from conditioning what it will furnish on what you buy from it, and from charging a handling fee for a funeral good you bought elsewhere (16 CFR 453.4(b)(1)). What the rule doesn’t settle is the cemetery side: the cemetery sets the specification, schedules the installation, and may charge for it. Ask both the funeral home and the cemetery before you order from a third party.

Source for every figure above: “Burial - Urn Vaults 2026,” the vault and urn vault price list posted by a New York funeral home, captured 2026-08-19 from irp.cdn-website.com. The document prints 2026 in its title and carries no effective date of its own, so the year is the document’s word and not this site’s. Fourteen prices, one per page, model names and lining materials as the catalog spells them. Check it yourself.

Sources

1. 16 CFR 453.1 Outer burial container: any container designed for placement in the grave around the casket, including those commonly known as burial vaults, grave boxes, and grave liners
2. 16 CFR 453.3(c) It is deceptive to represent that law or a particular cemetery requires an outer burial container when it does not, and the exact disclosure a provider must print on the outer burial container price list
3. 16 CFR 453.3(e) It is deceptive to represent that funeral goods will delay the natural decomposition of human remains for a long-term or indefinite time, or that they have protective features when that is not the case
4. 16 CFR 453.4(b)(1) A provider may not condition the furnishing of any funeral good or service upon the purchase of another, and may not charge a fee for handling goods purchased elsewhere
5. RCW 68.04.165 and Chapter 68.24 RCW Washington as the illustration: the state defines outer burial container to include vaults and liners, and gives a cemetery authority the power to make and enforce its own rules