Select the right ladder based on Application
There are different types of ladders so the first step is choosing the right style for the job. Various ladders types are designed to keep you safe and productive when climbing or standing. Using the wrong kind or simply ignoring the limitations of climbing equipment can result in a fall or serious injury. Many users only know of basic step and extension ladders. However, ALCOoffers specialty type ladders including platform, twin step, telescoping multi-ladder, tripod, scaffolding and other models.
Proper Height
To ensure you choose the ladder best suited to your needs, follow the ALCO height safety chart shown below. Extension ladders should be 7 to 10 feet longer than the highest support or contact point, which may be the wall or roof line. This will allow enough length for proper setup, overlap of ladder sections, height restrictions of the highest standing level, and where appropriate, the extension of the ladder above the roof line. The highest standing level is four rungs down from the top.
The highest permitted standing level on a stepladder is two steps down from the top. A person standing higher may lose their balance and fall. A person's maximum safe reaching height is approximately 4 feet higher than the height of the ladder. For example, a typical person can safely reach 8 feet on a 4 feet ladder.
Load bearing capacity
Ladders are designed to safely hold up a specific amount of weight. Most ladders come in five different Duty Ratings identified by their grade and type. The load bearing capacity is defined as the maximum safe load capacity of the ladder. A person fully clothed weight plus the weight of any tools and materials that are carried onto the ladder must be less than the maximum recommended capacity.
Ladders are also built to handle the demands of various applications. For example, a ladder used frequently on a construction site by rugged workers should typically be stronger and have a corresponding higher Duty Rating than a ladder used by a lighter person for light chores around the home. Workers should be advised to consider both the weight which will be on the ladder and the work application and to select the proper grade of ladder which is designed to handle anticipated usage.
Remember the maximum safe load capacity of the ladder. Hence, the Capacities are described in terms of Kg, such as a 150 KG.Capacity ladder which is designed for extra heavy duty professional use where the total weight on the ladder does not exceed 150 Kgs.