Twin ladders mean more than just one function and possibly two people at work simultaneously. Our Twin Ladders are designed to support use on both sides. Two people can climb simultaneously, one person per side, on either side of the ladder. For example, if there is a bulb to be changed or a suitcase to be stored in a walk-in closet, then one person can hold the bulb up while the other reaches out to the holder. Or one person can reach the required height and the other can hand over the suitcase to be stored away, or if you are painting a wall you can paint your side of the wall while your co-worker does the other side.