Sandpit

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Sandpit with toy tools used by children to play in sand

A small sandbox shaped like a boat made for children

A children's sandpit

For the Wikipedia sandbox see Wikipedia:Sandbox

For other meanings of sandbox, see Sandbox.

Sandpit is also used in American English to denote an open pit sand mine.

A sandpit (in British English/Australian English) or sandbox (American English) is a low, wide container or shallow depression filled with sand in which children can play. Many homeowners with children build sandpits in their backyards because, unlike most playground equipment, they can be easily and cheaply constructed. Homeowners with pets should be concerned that the sandpit does not become a litterbox.

Sandpits encourage the imaginations of children by providing the materials and space to build structures such as sandcastles; use toy trucks, shovels, and buckets to move the sand around; dig holes and bury things, etc. In other words, the sand provides a medium in which children can pretend to explore, construct, and destroy the world in three dimensions. This idea of creativity and experimentation is what the metaphorical uses of the word 'sandpit' or 'sandbox' were borne out of.

The "pit" or "box" itself is simply a method of storing the sand so that it doesn't spread outward across lawns or other surrounding surfaces. Boxes of various shapes are often constructed from planks, logs, or other large wooden frames that allow children easy access to the sand and also provide a convenient place to sit. Nevertheless, small sandpits are also available for purchase. These are usually made from plastic and are often shaped like an animal or other familiar object. They also sometimes have lids, to cover the sand when children aren't using it, thereby preventing passing cats from using the play area as a litterbox. Having lids also prevents the sand in outdoor sandpits from getting wet when it rains, although some dampness is often desirable as it helps the sand hold together. Prefabricated sandpits may also be used indoors, especially in day cares. Rather than sand, other materials are also often used such as oatmeal which are necessarily non-toxic and light enough to easily vacuum.

Sandpits can have a solid bottom or they can be built directly onto the soil. The latter allows free draining (which is useful if the top is open) but can lead to some contamination of the sand with soil if the children dig down to it.

The sand gets dirty over time and is generally eventually replaced. The old sand can be discarded or it can be used for other things (for example, mixed into concrete). Some parents use ordinary building sand to fill sandpits, while others use special sandbox sand. Building sand is far cheaper but often contains materials such as clay that can stain clothes, since it is not washed. It will also contain a mixture of grain sizes and colors, and hence be less appealing to the eye. Many schools around America replaced sand with wood chips, they are cheaper and don't stain clothes.

One can also sieve ordinary building sand to remove coarse particles and then wash it to clean off the clay.