10’x8′ Tiger Tongue-and-Groove Apex Shed – Tough Timber Sheds. The Tiger Tongue-and-Groove Apex with Rugged Framing is an improvement on one of the most favored designs in the Tiger assortment. The durable framing is double the standard thickness of a typical shed, enhancing the entire structure’s fortitude and durability – all the while offering extra depth for easier incorporation of interior insulation. 10’x8′ Tiger Tongue-and-Groove Apex Shed – Tough Timber Sheds