Children's sandbox Children's sandboxes play a fundamental role in a children's development. The child works with the sand and thus practises their fine motor skills. The most popular version is a playhouse or  large castle with a sandbox. Under certain conditions, a wooden sandbox for children can also be built on a slope. It’s best to protect the structure with a cover. The box sandbox, which we also supply with a lid, is ideal for this. Another option is a tarpaulin that provides cover and shade. Sandboxes for children can be combined with other  play accessories. Such as climbing frames and a rope course. This is because sand is a relatively safe impact surface.