Ridge
By tjs
In
Ridge2016-03-312016-03-31http://www.lincframetrusses.co.uk/wp-content/uploads/2016/04/lincframe_trusses_logo_150.pngLincFrame Trusseshttp://www.lincframetrusses.co.uk/wp-content/uploads/2016/04/lincframe_trusses_logo_150.png200px200px
The line formed by the truss apexes.