The GSC consists of 75,000 square feet of space consisting of a 350 seat theater, four retail food concepts featuring Ryan's Pub, Subway, Blue Gibbon and Coffee Emporium, a US Bank branch, a TV lounge, a game room, and flexible meeting and event spaces. The GSC is open 24/7 during the academic year, excluding holidays. Hours of operation for the building (and retail outlets located within) are posted at the front and rear entrance to the building.

Lower Level
Main Theater
Studio Theater
Box Office
Ryan's Pub
Blue Gibbon 
D'Artagnan's Den

Level One
Welcome Desk
Gallagher Student Center Office
Fireplace Lounge
Coffee Emporium
Community Copier/Computer Kiosk
Community Lockers/Vending Machines
The Arrupe Overlook

Level Two
200/280 Center for Diversity and Inclusion
210 Office of Student Involvement
214 Meeting Room
220 SGA Club Work Room
230 Center for International Education
250 Newswire
251 Meeting Room
260 U.S. Bank Xavier Branch
270 Student Government Association

Level Three
300 Student Affairs and Student Enrichment
310 Dorothy Day Center for Faith & Justice
320 Commuter Lounge
330 Meeting Room
332 Office of the Title IX Coordinator
340 Office of Interfaith Community Engagement
350 Project Search
360 Clocktower Lounge