Wasps have different kinds of nests from paper pulp to nests in the ground. Some Wasps don't build nests and are more predatory. Wasps nests can be built on trees, inside attic spaces, holes in the ground and places that provide shelter as well as have accesses to the outdoors. Honey bees have a gland that produces wax with witch they build there nests from, with wasps, they don't have this gland.
The Majority of wasps build there nests from pulp made from wood. The wasps gather fibres of weathered wood found near to were the nest is being built. The wood fibres are chewed up and mixed with saliva making a soft pulp. The soft wood and saliva pulp is then used to make combs with multiple cells for rearing young. Most wooden pulp wasps nests have one entrance. Some wasps build there nests in an umbrella shape with multiple openings.