Formply is the well-known plywood specifically engineered for the Concrete Formwork Industry.Certified to specific stress-grades, Formply is typically available in various strength ratings from F11 thru to F27. Formply sheets are 17mm thick (historically the most popular choice)

Structural gradingStructural grading is the process by which timber is sorted into groups - or stress grades - with ideally, similar structural properties in each group. Inevitably there is a very substantial range of properties within a group and significant overlap in properties between the groups