Below is a list of Chair Casters manufacturers from Portland, Oregon. Chair casters, a specific type of furniture caster, are wheel assemblies that are attached to the bottoms of chair legs to improve mobility and shock absorption. Their main purpose is to allow chairs to move across the floor with minimal friction and scratching. Chair casters are typically used in homes, offices, schools, hospitals, banquet halls, restaurants, retail stores, truck garages and industrial manufacturing plants and warehouses.