Our Hollow Soffit board is a 'tongue and groove' board, slotting together to hide all fixings and providing an attractive finish, perfect for bathroom ceilings, the underside of porches and other areas suited for cladding.Each hollow soffit cladding board is 300mm wide and 5 metres long, with our roofing kit providing 5 lengths, covering up to 7.5 metres squared. The lightweight soffit board is simple to fit and has a white soft gloss finish.Along with the hollow soffit, within each ceiling kit we also provide 3 lengths of 5 metre finishing trims (J Trims), these trims are used at the edge of the hollow soffit board, providing an initial fix for the soffit boards and giving the ceiling a tidy finish on all edges.Each Roofing Kit Includes the following:- 5 x 5 Metre x 300mm Hollow Soffit Boards- 3 x 5 Metre Edge Trim (J-Trim)- 200 Fixing Pins.