A surgical robotic arm support system includes a rail and one or more mounting members configured to be coupled to the rail at a selected one of a plurality of discrete robotic arm mounting positions. Each mounting member is configured to support a surgical robotic arm. Distances from the discrete mounting positions to a surgical site access point on a patient may be calculated based on the mounting position locations and a patient dimension and/or a placement position of the patient on a surgical table. An optimal mounting position for each of an optimal number of the surgical robotic arms for a selected surgical procedure may be identified from the calculated distances.
