easily reach your rv roof best seller! reach reach great for home & rv supports up to 300 lbs supports up to 250 lbs 48" aluminum extension ladder gives you a leg up to your rooftop treads are 10"w between uprights aluminum ladders fold for compact storage single- sided double- sided folds to anti-slip rungs snap-lock into place as you unfold ladder then fold up inside the heavy-duty side rails for storage and osha specifications