This is the fee to add X-shaped torsional carbon stringers to the board (in addition to the 10 longitudinal carbon stringers on all glass construction boards) - to stiffen up torsional flex.
**Please ensure any customisation request is included in the order comments section to ensure the production team are notified. If in doubt, please email our sales team so that we can make sure your requests are accurately communicated to our production team.
