An angle is an ‘L’ section of iron of desired width, height and thickness used for fastening a chain link fence to a structure made of angles. In construction terms, the structure made out of angles is like firm scaffolding which is strong enough to hold the chain link like a wall to complete the chain link fencing..
Thickness of an angle and the width of the angle required is a choice. Depending on the length of the chain link perimeter and on the height you want to install the chain link, you have to decide on which angle can carry on the weight and force that is inserted on it by the chain link.