PacTool Gecko Siding Gauge – #SA903
Install 5/16" fiber cement siding quickly and accurately with the PacTool SA903 Gecko Siding Gauge. Designed for one-person operation, it eliminates the need for complex layout, saving time on every wall.
Each gauge is adjustable in 1/4" increments to support siding reveals from 4" to 8" and can hold full 12' siding lengths. Heavy-gauge plastic construction protects pre-painted surfaces from scratches or damage while providing stable, reliable support during installation.
Why Contractors Choose It
🛠️ Supports one-person installation of fiber cement siding efficiently
✂️ Adjustable in 1/4" increments for 4"-8" siding reveals
⚙️ Handles full 12' siding lengths for larger jobs
🤲 Heavy-gauge plastic construction won’t scratch or mar pre-painted siding
🧱 Compatible with James Hardie HZ5 series and other 5/16" fiber cement siding
How To Use
1. Place the Gecko Gauge at the desired starting point on the wall.
2. Adjust the gauge to the required siding reveal (4"–8").
3. Rest the siding plank on the gauge for stable, hands-free positioning.
4. Secure siding in place and repeat along the wall as needed.
Additional Notes
• Model: SA903
• Quantity: Set of 2 Gecko Gauge clamps
• Material: Heavy-gauge plastic
• Use: Supports 5/16" fiber-cement siding
• Adjusts: 1/4" increments for 4"-8" reveals
⚠️ California Proposition 65 Warning
This product may contain chemicals in the plastic components which are known to the State of California to cause cancer and birth defects or other reproductive harm.