Our Flexistore 5 x 11 Green is Designed & manufactured here in the UK by Asgard the Flexistore range of sheds offer unbeatable security features & incredible value that other products simply can t match. Featuring the same pick resistant, Euro cylinder locking system as our bigger storage products, the Flexistore range offers excellent security features. Exclusive to the Flexistore range is the front facia vent system in addition to the hidden roof vent system for excellent air flow. Download Instructions. Manufactured by Asgard.