Urn Materials Compared: Wood, Metal, Ceramic, Stone and More

The best urn material depends on where the urn will go. Metal and stone hold up well in a columbarium niche or cemetery, wood and ceramic suit display at home, and biodegradable urns are made to break down in soil or water. Check the cemetery's or columbarium's rules before you buy, because they can limit both material and size.

There is no independent testing of urn materials, so durability ratings below come from one online retailer's guides, checked in September 2026. Treat them as general guidance and read each product's description.

How do urn materials compare?

Metal urns usually have a threaded lid, which the retailer says gives good long-term protection. Marble and stone are described as very stable, with natural variation in color from one urn to the next.

Which material for each place?

At home

Almost any material works. Metal, stone and wood are sturdier choices if you have children or pets, and the retailer suggests keeping glass and ceramic in a locked cabinet or out of reach. It also advises keeping urns out of direct sunlight, which can fade finishes and discolor wood, and away from damp spots such as bathrooms and basements. Check that the lid closes properly, and use non-slip putty or a liner on a mantel or floating shelf.

In a columbarium niche

A columbarium is a structure of niches, often at a cemetery or church. One retailer says single niches typically measure about 9 to 12 inches on each side, and a typical adult urn stands 9 to 11 inches tall, so measure the niche first. It says metal and stone are preferred, and that biodegradable and some wooden urns may not be accepted because they can deteriorate in enclosed, humid spaces. See columbarium niches.

In a cemetery grave

The FTC says outer burial containers are not required by state law anywhere in the U.S., but many cemeteries require them to keep a grave from caving in. A retailer says cemeteries often waive the vault for stone urns, while wood and ceramic are likely to need one because they degrade. Green cemeteries generally do not allow vaults. Each cemetery sets its own policy, so ask for it in writing. Our guides to urn vaults for burial and burial urn requirements explain what to ask.

For scattering or water burial

A light scattering urn or tube is built to open easily. For burial at sea, the EPA says containers must not contain plastic of any kind, float or add to marine debris, and should degrade or dissolve in a short time. The remains must go at least three nautical miles from shore, with a report to the EPA within 30 days. Dissolve times differ by product, so ask the seller what a given urn is designed to do.

On a plane

The TSA allows cremated remains in carry-on and checked bags. It recommends a temporary or permanent container made of a lighter material, such as wood or plastic. Officers will not open a container, even at your request, and a container that shows an opaque X-ray image is not allowed through. The TSA doesn't list approved materials, so a heavy stone or metal urn carries more risk. Airlines can add their own rules. See flying with ashes.

What do urn materials cost?

Prices vary by seller, size and finish. One online retailer's guide gives these typical ranges for adult-size urns, and its catalog lists the lowest price in each group.

The Funeral Consumers Alliance says decorative urns bought through funeral homes or cemeteries run from several hundred to several thousand dollars. Our urn prices guide goes into the other factors, such as size and engraving.

Are biodegradable urns worth considering?

They suit people who want the urn to return to the earth or water. Retailers describe them as made from natural materials such as bamboo, recycled paper or sand, and designed to break down over months to years in soil, or to float briefly and then dissolve in water. Because they are very light, they are not meant to sit on a shelf for years.

If you plan a ground burial, ask the cemetery whether it allows a biodegradable urn without a vault, since a sealed container can slow the breakdown. Our biodegradable urns guide has more, and memorial trees covers urns that grow a tree.

What to do next

1. Decide where the urn will go, then get that place's rules on size, material and vaults.
2. Pick the material that suits it, and check the listed capacity. See buying a cremation urn for sizing.
3. If you want a name or dates added, check which materials take engraving. See urn engraving options.
4. Ask the seller for the return policy and delivery date in writing.