I never thought that of all kind of things when it came to buying a ladder. I thought they were all alike. But there are adjustable ladders and you do have to make sure that you get one that will meet you needs. There is a website called Super Discount Prices that has an article that tells you about buying an adjustable ladder. They also have other articles that are helpful. But if you are going to buy a ladder then especially if it is an adjustable one then there are things that you need to know before you buy it. So pay this website a visit.