If you are using an extension ladder do not lean the ladder on the gutter. It will scratch the finish on the gutters and the forward edge of the gutter can provide a slippery rail for the ladder to slide on. ... In climbing the ladder there should always be at least three points of contact with the ladder at all times.

Can you put a ladder against a gutter?

SHORT ANSWER: No, it's not safe to lean a ladder against a gutter. Make sure you lean your ladder against a strong resting point that's sturdy enough to support it.

How much weight can a gutter support?

A typical 1-foot-long section of 5-inch gutter can hold 1.2 gallons of water, and a 1-foot-by-6-inch gutter can hold 2 gallons of water. Water weighs in at 8.3 pounds per gallon, so a 10-foot section of flooded gutter must support anywhere from 100 to 166 pounds.