Cavity Batten H: 25mm, W: 50mm, L: 5.4m SKU: 284259 Mitre 10 SAvailable at selected stores. Check your local store for details Variants Cavity Batten H3.2 KD D4S, commonly used to create a cavity space for weatherboard cladding system as well as many other possible uses around the home. Features and benefits Merch grade cavity batten. Finger Jointed. H3.2 treated dry.