We bought a good quality tarp and tied it with rope. Assuming the 3023 is going to be stored in the collapsed postion and it is 6 ft high you need a tarp that is approx (6+8+6)=14ft X (6+23+6)=35ft. The one we bought is a silver Heavy Duty 20x40 for ~$90 including shipping from
www.tarps.com. The 20 ft length is OK but the 40 ft length tends to be a little long.