The G-Clamp System is our most popular edge protection system for use on purlins. This is an easy to use system which allows roof guardrail to anchor to purlins without the need for screwing, bolting or penetrating the purlins in any way. The G Clamp System is lightweight, versatile and simple to install. Each post set requires two clamps and a needle, which can placed inside the purlin at gutter ends and both inside or underneath the purlin at the roof barge line. Standard needle lengths can be provided at 1m, 1.2m, 1.5m or 1.75m to suit a range of purlin spans. If greater span is required between purlins an extension piece is also available. This system is available for dry hire and purchase.