Tips for buying a portable folding ladder?

1, the choice of ladder type ladder is generally divided into two categories: one is a straight ladder, the second is a herringbone ladder. Straight ladder is one-sided, can not stand alone, you need to rely on a fixed object to use, such as walls, etc.; and herringbone ladder is herringbone, there are two planes and an intersection, stretching the ladder is triangular, ladder can be mutually supportive of the two sides of the ladder, do not need to rely on a fixed object, the use of a relatively simple and convenient.

2, the choice of ladder materials currently on the market ladder metal, wood and fiberglass materials. Metal ladder: light weight, easy to carry, but if it is not insulated metal ladder can not be used in places where the risk of electric shock. Wooden ladders: practical, not easy to conduct electricity, but the quality of heavy, easy to damage, and in the humid situation or environment, may also be electrocuted. Fiberglass ladder: high-strength, lightweight, but if long-term exposure to the sun is easy to deteriorate, but also susceptible to chemical damage, and in the case of moisture or the environment, may also occur in the problem of electric shock.

3, the choice of ladder load ladder load is divided into four levels: light work, work, heavy work and overweight work, different levels of ladder load use is also different, so in the purchase of ladders is the need to understand the ladder's maximum load limit is how much, to avoid the use of the process due to the overweight and the emergence of safety issues.