How to use the Gecko Gauge: IMPORTANT: Nail first siding course at-desired height before using the Gecko Gauge. No need for further layout. Don over-tighten handle! E14 Lower next siding piece into the gauge slots: &8 Approximately one-third ยง3 Engage the handle fora af your sing's overall Hug fc Don't length from either end, over tighten! place the Gecko's blade {Sei photos 4 SB) under button edge of E03 Wail sid pet manufacturers recommendations.