Waltons 12 x 8 shiplap osb pent garden shedour 12 x 8 shiplap osb pent garden shed is the largest in the range and offers a secure solid building on a smaller budgetmade from quality materials the 12mm shiplap tongue and groove cladding interlocks together for a solid weatherproof build keeping your items secure and dry the roof and floor are made from solid sheet board material ideal for storing general gardening itemsstrong 28mm x 28mm interior framing supports the structure of the