Biodegradable Coffins Explained

At a natural burial ground, the container matters as much as the setting. Because the aim is to allow the body to return to the earth without leaving synthetic residues or non-degradable materials, the choice of coffin or shroud is one of the most practical decisions a family makes. This guide covers the main options permitted at UK natural burial grounds and what to ask the site before choosing.

Woven willow and bamboo coffins

Woven coffins are the most commonly seen container at natural burials. Willow, bamboo, and rattan are fast-growing, renewable materials that decompose readily in soil. Willow coffins in particular are made by skilled basket-makers, often in the UK or Ireland, and have a warm, natural appearance that many families prefer to polished wood. They are structurally strong enough for a pallbearer-led funeral and break down within a few years of burial.

Bamboo coffins are similar in appearance but typically imported. Some families prefer willow for its lower transport footprint and its long association with UK craft. [Source: Association of Natural Burial Grounds]

Cardboard coffins

Cardboard coffins are exactly what they sound like: a rigid coffin made from heavy-duty recycled cardboard, reinforced at the base. They are the most inexpensive biodegradable option and are widely accepted at natural burial grounds. Many can be decorated — some families choose a plain exterior, others add a printed design or hand-paint the surface. Cardboard coffins decompose quickly in soil.

One thing to check: some cardboard coffins use metal rivets or plastic handles. Most natural burial grounds ask for fully biodegradable construction, so confirm with the supplier that the handles and fastenings are natural or compostable.

Wooden coffins (untreated)

A plain, untreated wooden coffin — typically pine or plywood — is permitted at some natural burial grounds, provided it has no metal fittings, synthetic lacquer, or plastic handles. These are heavier and slower to decompose than woven or cardboard options, but some families prefer the more traditional appearance. Check with the specific site: policies vary, and some grounds accept only woven or cardboard containers.

Shrouds

A shroud is the simplest option: a length of natural fabric — cotton, linen, wool, or hemp — wrapped around the body and secured with cord or a willow frame. Shrouds have a long history across many religious and cultural traditions and are increasingly chosen by families who want the most minimal, natural approach.

Most natural burial grounds permit shrouds, but some require that the body be placed on a solid base (often a willow or bamboo tray called a "shroud bearer") for practical handling during the interment. The fabric must be 100% natural fibre — no synthetic blends, no zips, no plastic fastenings.

What is not permitted

Across nearly all UK natural burial grounds, the following are not accepted:

• Embalmed bodies (embalming fluids contain formaldehyde)
• Coffins with metal handles, hinges, or studs
• Synthetic linings, plastic, or polyester fabrics
• Varnished or lacquered wood surfaces
• Shoes with synthetic soles (some sites ask that footwear be removed or be natural fibre)

Where to buy biodegradable coffins

Many funeral directors now stock woven willow and cardboard coffins, and an increasing number specialise in eco-friendly options. Some natural burial grounds sell containers directly. If you are not using a funeral director, specialist suppliers deliver nationally. When ordering, confirm that the coffin is certified as fully biodegradable and that any handles are natural rope or wood.

What to ask the burial ground

Before purchasing a coffin or shroud, contact the burial ground and ask:

• Which container types do you accept?
• Do you require a shroud bearer for shroud burials?
• Are there any restrictions on decoration or personalisation?
• Do you supply coffins directly, or should we arrange our own?

These details are confirmed as part of our verification process for each listing. You can browse the directory to find a site near you and see which details have been confirmed. [Source: direct site contact]

Frequently asked questions