Make the most of summer in the tgb 5ft x 12ft 152m x 365m chatsworth apex summerhouse this traditional summerhouse is made from 16mm thick timber logs and features tongue and groove cladding for a strong build the apex roof has profiled fascia boards and a canopy of 300mmother features include two fixed georgian style windows and two top hung opening georgian style windows matching georgian style double glazed double doors add further interest to the exterior and contribute to the light