The Yates Speedwall Ladder is a lighter and thinner version of the our Editors' Choice winner, the Yates Big Wall Ladder. The steps are 1" wide compared to the Big Wall Ladder's 1.75" steps. That means this aider is not as comfortable to stand in for hours but is lighter when clipped to the side of your harness. While the Big Wall Ladder comes in a 6-step and a 7-step length, the Speed Wall Ladder only comes in a 6-step length (67"). This is the aider Ammon McNeely uses to set El Cap speed records.
Overall we prefer the Yates Big Wall Ladder to Speed Wall Ladder because it is more comfortable and is only a little heavier. But it's personal preference. McNeely prefers the Speed Wall because he likes a lighter aider. Chris Mac prefers to take a heavy, comfortable aider for the aid-intensive walls and a light aider like the Petzl Wall Step Etrier for free-intensive walls. But if you only want one aider that is versatile, it is hard to go wrong with the Speed Wall Ladder. It's comfy, durable, and not too clunky when free climbing. Another ladder to consider is the Metolius 8-Step Ladder Aider, which is even lighter but lacks a spreader bar.