Ladder accidents can be nasty. Minimize the risk by choosing a ladder that provides at least a 3-foot extension above your landing point. The ladder should also be tied off at the top to prevent lateral movement. The ladder end should be square to the ground.
The ideal ladder angle is set at a one to four pitch. That means that for every foot in width, the ladder should provide four feet in height. You should also regularly check the condition of your ladder. Make sure the rungs are solid and the top platform is secure. You should also avoid carrying things up and down the ladder. If you are working at the top of the ladder, take a few minutes to set up a rope line.