CON Formwork Board Con-Form 4.8mCon Form plastic formwork board, 4. 8 m length. Lightweight, reusable plastic boxing formwork with various levels of flexibility. Lengths join almost seamlessly, and twist in Camlocks can be set and adjusted in seconds, no drilling or nailing required. All boards use the same Camlocks. Flex and Rigid boards use the same joiners, while Superflex requires specific hinges. 300 mm boards use two 150 mm joiners. Allow 1 joiner and 5 Camlocks per board