Sheet webs are a type of spider web that appear as flat, horizontal sheets. These webs are typically constructed by spiders from the family Linyphiidae, commonly known as sheet weavers. The webs are often found in grassy areas or low vegetation, where they can catch small flying insects. The design of sheet webs allows spiders to capture prey that flies or falls onto the surface. The silk threads are usually very fine and can be difficult to see, making them effective for trapping unsuspecting insects. Spiders that create these webs often hide underneath the sheet, waiting for their next meal.