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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

  • Based on 10 reviews
Condition: New
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$62.53 Why this price?
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Apr 30
Order within 21 hours and 16 minutes
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Style: Universal


Size: Universal: 5/16"–5/8" for Hardie & LP Siding


Features

  • Universal Compatibility Works with Hardie fiber cement and LP SmartSide engineered wood siding for seamless installation
  • One-Person Installation Holds siding in place, allowing for fast, precise nailing without extra hands or complex layout
  • Adjustable Siding Reveals - Works with Hardie and LP Smartside planks from 4 inches to 8 inches tall, creating consistent reveal spacing on every project
  • Heavy-Duty Support Designed for 12 foot Hardie boards and 16 foot LP SmartSide planks, helps ensure reliable performance
  • Non-Marring Design - Features a protective rubber locking grip to help prevent scatches on primed and pre-finished siding

Description

Upgrade your siding installation with the Gecko Gauge, the only tool you need for both Hardie® fiber cement and LP® SmartSide® engineered wood siding. Engineered for fast, one-person installation, this professional-grade siding gauge supports full 12-foot Hardie boards and 16-foot LP SmartSide planks, ensuring perfect spacing and level placement every time. With a patent-pending design, the Gecko Gauge allows for adjustable 4”–8” siding reveals, decreasing layout time and increasing efficiency. The locking grip features a protective rubber lining to prevent damage to primed or pre-finished siding, making it the go-to tool for contractors and siding professionals. Includes 2 Adjustable Gecko Gauge Clamps. About PacTool: Trusted for decades, we are the leaders in specialized construction, renovation, and remodeling tools. Our cutting-edge product line helps construction professionals work smarter, measure better, and repair more efficiently. Driven by direct feedback from tradespeople, Pactool leverages innovative designs and premium materials to produce professional-grade hand tools to help you get the job done right. PacTool is the original creator of the Gecko Gauge, providing easy and reliable one- person installation for siding professionals for over 30 years.

Brand: PacTool


Material: Plastic, Rubber


Item dimensions L x W x H: 8.4 x 2.75 x 2.82 inches


Item Weight: 1.7 Pounds


Thread Type: Adjustable


Brand Name: PacTool


UPC: 645646000009


Manufacturer: General Tools


Included Components: (1) Instruction Manual


Item Dimensions: 8.4 x 2.75 x 2.82 inches


Item Weight: 1.7 Pounds


Material Type: Plastic, Rubber


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Siding guides
Style: Universal Size: Universal: 5/16"–5/8" for Hardie & LP...
This worked great. I used it by myself to put Hardie siding on an 8' x 10' shed and did it in less than a day.
Reviewed in the United States on February 6, 2026 by Kurt Steinle

  • Would recommend.
Style: Universal Size: Universal: 5/16"–5/8" for Hardie & LP...
Worked great. Made installation easy. So far quality holding. Cost more, but worth it for the versatility.
Reviewed in the United States on July 14, 2025 by perskygroup

  • Face Gauge Adjustment Needed but Good Product
Style: Universal Size: Universal: 5/16"–5/8" for Hardie & LP...
Fit my 1/2” siding as expected. Setting the gauge to the right face exposure is a bit finicky. The screw comes loose and needs to be adjusted more than I’d like. Otherwise it’s a good product
Reviewed in the United States on September 8, 2025 by Dylan Alidor

  • Perfect fit
Style: Universal Size: Universal: 5/16"–5/8" for Hardie & LP...
Perfect for the siding job
Reviewed in the United States on November 29, 2025 by Jose Pelayo

  • Worth it!
Style: Universal Size: Universal: 5/16"–5/8" for Hardie & LP...
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. ... show more
Reviewed in the United States on May 8, 2025 by Suzanne M. Susens

  • Failed within hours of use.
Style: Universal Size: Universal: 5/16"–5/8" for Hardie & LP...
It worked good until it didn't. Used for about half a day. Went to adjust the height and the screw started spinning in place. Turns out the wedge that hold the height failed. I found a way to keep it in place and use the other one. Couple of hours later that one failed too. Always hand tightened them. Great product but they should revise the reveal adjustment design. ... show more
Reviewed in the United States on January 18, 2026 by Juan Hernandez

  • Elegante
Style: Universal Size: Universal: 5/16"–5/8" for Hardie & LP...
Really helpful
Reviewed in the United States on November 7, 2025 by Erwin

  • Not worth the money
Style: Universal Size: Universal: 5/16"–5/8" for Hardie & LP...
The Original Gecko is more accurate and all around better for siding with fiber cement siding.
Reviewed in the United States on August 21, 2025 by nathan

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