Extension ladders are primarily measured to determine their maximum functional length when in use.
Determining Extension Ladder Length
According to the provided reference, the standard way to measure an extension ladder to find its length when it's fully ready for use involves extending the ladder and measuring its total span. This measurement represents the effective working length of the ladder.
To measure the length of your extension ladder when it's fully extended and ready to use, you should follow these steps:
- Open the ladder to the last position supported securely by the rung locks.
- Use a tape measure to measure the ladder from end to end.
This method gives you the maximum practical length you can expect from the ladder when it's set up safely for use, as detailed by sources like Ladders UK Direct. Knowing this measurement is crucial for selecting the correct ladder size for your task.