Triangle Self Storage is a completely walled self-service mini storage facility. We have a computer security access gate, and all spaces are ground level. Plus we offer Super Rent Specials! Our facility contains storage garages ranging from closet size up to the square footage of a large garage, basement or attic. These spaces are ideal for personal items such as household storage or furniture storage as well as a place for your business storage needs. If you need help in deciding which size storage space you need, try our online Storage Calculator. We are "Smack Dab" in the middle of US Rt 1 in Triangle, Virginia. Our service area includes the southeastern Prince William County communities of Triangle, Dumfries, Quantico Marine Base, and other areas.