Ceiling formwork, comprising: - a support device for formwork girders, comprising: - two formwork supports, each for supporting a formwork girder, wherein the formwork supports each have a lower support part, an upper support part which is telescopically connected to the lower support part, and a holding head at the upper end of the upper support part, wherein the holding head has at least one holding element for holding a longitudinal region of the relevant formwork girder, wherein a surrounding element is provided as the holding element and the holding head has a first attachment element for detachable connection to a transverse beam substantially perpendicular to the relevant formwork girder; and - a transverse beam having a second attachment element at each opposite end of the transverse beam, wherein the second attachment elements of the transverse beam are detachably connected to the first attachment elements of the retaining heads of the formwork supports; - two formwork girders which are held on the holding heads of the formwork supports, wherein the surrounding elements each surround, i.e. retain laterally and at the top, one of the lateral longitudinal regions of a lower chord of the relevant formwork girder. - a support device for formwork girders, comprising: - two formwork supports, each for supporting a formwork girder, wherein the formwork supports each have a lower support part, an upper support part which is telescopically connected to the lower support part, and a holding head at the upper end of the upper support part, wherein the holding head has at least one holding element for holding a longitudinal region of the relevant formwork girder, wherein a surrounding element is provided as the holding element and the holding head has a first attachment element for detachable connection to a transverse beam substantially perpendicular to the relevant formwork girder; and - a transverse beam having a second attachment element at each opposite end of the transverse beam, wherein the second attachment elements of the transverse beam are detachably connected to the first attachment elements of the retaining heads of the formwork supports; - two formwork girders which are held on the holding heads of the formwork supports, wherein the surrounding elements each surround, i.e. retain laterally and at the top, one of the lateral longitudinal regions of a lower chord of the relevant formwork girder. - two formwork supports, each for supporting a formwork girder, wherein the formwork supports each have a lower support part, an upper support part which is telescopically connected to the lower support part, and a holding head at the upper end of the upper support part, wherein the holding head has at least one holding element for holding a longitudinal region of the relevant formwork girder, wherein a surrounding element is provided as the holding element and the holding head has a first attachment element for detachable connection to a transverse beam substantially perpendicular to the relevant formwork girder; and - a transverse beam having a second attachment element at each opposite end of the transverse beam, wherein the second attachment elements of the transverse beam are detachably connected to the first attachment elements of the retaining heads of the formwork supports; - two formwork girders which are held on the holding heads of the formwork supports, wherein the surrounding elements each surround, i.e. retain laterally and at the top, one of the lateral longitudinal regions of a lower chord of the relevant formwork girder.