A modular medical gas services unit with multiple medical gas outlets supported at the same level on the column. The unit preferably comprises a hollow column with an internal space for housing the gas conduits and power lines. The medical gas supply outlets are mounted so that their longitudinal axes extend radially from the vertical axis of the frame, and the longitudinal axes of adjacent outlets intersect to form an acute angle. In this way, the horizontal dimensions of the column can be minimized while the number of medical gas outlets at the desired height is maximized. In one embodiment, the column is pentagonal in cross-section providing five planar support surfaces for five medical gas outlets. In another embodiment, a square column is equipped with angled outlet panels, each supporting two medical gas outlets. Thus, though the frame is four-sided, as many as eight medical gas outlets can be mounted at the same height on the frame.