What is a lattice? A lattice fence is a structure made of wood, vinyl or other material, which is composed of thin strips arranged in a crisscross or diamond pattern with a space therebetween. It can be used to close the entire perimeter of the property, such as garden walls, patio screens, balcony railings, arches, deck skirts or as separate dividers. It is also often added as a decorative feature of the landscape or as a garden lattice, allowing vines and other trailing plants to climb as they grow.