Siding Installation Tools, Siding Mounting Kit for Use with 5/16-Inch Fiber Cement Sidings, Lap Tools Gauge with Adjustable Reveals, Polycarbonate Body, 2 Pack

Works the same as the Gecko gauges and measurements are accurate

Tool works great!

Use light pressure when clamping these onto fiber cement board and don't leave them clamped for very long. I was clamping them down with a lot of force which was damaging the fiber cement board exterior surface. Only light clamping is needed, even when you're working with 8' board lengths.Don't leave the clamps attached to the board when you don't need to. I left some clamped for a few hours and when I took them off, it took off the fiber cement board exterior with them.Also periodically clean the rubber side of the clamps (where they touch the board) to remove the fiber cement board particles that can collect there. They can also damage your exterior.My only complaint about these tools is that the acorn nut likes to come off easily. I know they're meant to come off so you can change the board height (and you'll likely need to change the height when you get into tricky situations like below windows, below eaves, etc) but these like to fall off and then you can't find them. Not sure if Gecko Gauges are any better as I haven't used them.These are absolutely worth the price if you're attaching fiber cement board in a "lap siding" style.

The media could not be loaded. This siding tool has been a real game-changer for my home renovation project. It's like having an extra set of hands, holding the cement boards steady while I nail them in place. The adjustable spacing feature is pretty nifty - I've been able to get consistent gaps between boards without constantly measuring. It's sturdy enough to hold a full 12-foot board, which is impressive for a plastic tool. The rubber grip is a nice touch, hasn't left any marks on my pre-painted siding. Installation is pretty straightforward once you get the hang of it - took me a few tries to get the rhythm down, but now it's smooth sailing. It's definitely made the job quicker, and I've been able to work solo instead of calling in favors from friends. Now for the downsides - it can be a bit fiddly to adjust the spacing, especially with gloves on. The clamp is strong, but I've had it slip a couple times on particularly warped boards. And while it's great for straight runs, it's not much help around windows or corners. The plastic feels durable, but I'm a bit worried about how it'll hold up to long-term UV exposure if I store it outside. If you're tackling a siding project on your own and don't mind a bit of a learning curve, this tool could save you a lot of time and frustration. Just don't expect it to solve all your siding woes - you'll still need some DIY skills to get the job done right.​​​​​​​​​​​​​​​​

I've used these to install LP Smart siding on the detached office I built for my husband. It allows me to work on it without requiring an extra set of hands. Extremely easy to adjust depending on the siding width you have.

The idea is great but the function is far from good. I've done many house with hardie and I tried by myself to do some and it just don't function that great. When u lock it in place your literally pushing the top part away from the house. Not allowing the hardie to sit in place where it needs to be. Great idea just not great for work.

Worked great, just as advertised.

I ordered these months ago and finally used them today. When I saw them in person I didn't see how these were gonna actually work, but they worked awesome. One man siding job.