The J.E. and L.E. Mabee Grange is a multipurpose facility at the Tulsa Botanic Garden designed to support educational programs, workshops, presentations, community events and private gatherings. The building features a large flexible meeting space with foldable partitiondoors that allow the space to open to an adjoining patio and lawn, along with architecturally exposed structural steel trusses and a spruce wood slat ceiling.