Sutton Hoo
Most of Kirby's pieces are public commissions, and are therefore monumental in size. His pieces range in height from one to ten metres; his 2002 sculpture "Sutton Hoo Helmet", modelled after the Anglo-Saxon Sutton Hoo helmet from the Sutton Hoo ship-burial and unveiled by Nobel laureate Seamus Heaney, is tall and deep, and weighs .