Metsec SFS infill wall with RCM Y-Wall sheathing board, Siniat plasterboard Last verified by manufacturer 7 months ago Viewing archived product data This product has been archived and is no longer available for project specification within NBS . Archived data may not reflect the manufacturer's most current version of the product. I am happy to view archived product data and understand that such data may not reflect the manufacturer's current version of the product. Confirm and view product data Y1-N90-S22 - 90 mm stud Metsec (voestalpine Metsec) Variant: Y1-N90-S22 - 90 mm stud