Are single ladders adjustable in length?

Single ladders, also known as straight ladders, are not designed to be adjustable in length. They come in a fixed size and are intended to provide a specific height when in use. The construction of single ladders does not allow for any extension or modification to change their length safely.

While other types of ladders, such as extension ladders, are specifically designed to adjust in length by sliding sections in or out, single ladders lack this feature. Safety regulations and best practices emphasize using ladders as they are manufactured to prevent accidents that might occur from trying to alter their structure. Thus, understanding that single ladders are fixed in size ensures users select the correct ladder for their specific needs without compromising safety.