Pactool Universal Gecko Gauge Siding Tool – One-Person Installation for Hardie® Fiber Cement & LP® SmartSide® Engineered Wood, Durable Grip, Heavy-Duty Support for 12’ & 16’ Planks

Works just fine. With these I was able to get 2/3 of my house sided over the winter just by working on the relatively few decent days we had. Other reviewers have complained they are made of plastic, so what, a lot of things are made of plastic. I dropped these a couple of times from 20 feet up on a ladder on concrete with no damage. Are they perfect? No nothing is but they do work and make it possible for one person to install siding. They did fall off a couple of times but it was because I didn't have the clamp set right. Again so what. They do work.

A great product! It can clamp onto the siding board without forcing the support arm away from the surface and opening up a gap so wide the next board falls into it. Like the other siding support clamp I bought. Also, both the clamp adjustment and the support arm height are can be set at any value within the range instead set steps and increments.

A must have for siding. Simple design, easy to use. Made my project easier and cleaner

These things make installing Hardie board a breeze but I'm not sure one pair will do an entire house. We'll have to see

Great

This tool made the installation of our smart board easier. It insured each board was evenly spaced. Good buy!

Work great, i highly recommend.

Perfect