What You Need to Know About Ladders
If you need a ladders for a particular task, you might want to know more about ladders in general. This may help in your choosing the right ladder for the job. The rigid ladder is usually the ladder type used for most tasks. There are many kinds of rigid ladders, from the fixed type to the roof ladder type. The fixed ladder is the most plain of these and has no moving parts. Extension ladders are often composed to two ladders where one can retract into the other for easy storage. Joined by a hinge at the top, and often forming an inverted V, are step ladders. A platform step ladder has, because of its name, a platform at the top. Ladders that have hooks to firmly set them locked on the roof are called roof ladders. Aluminium is the choice material for many ladders, except those for electrical work.