Marriott Marquis Chicago — Event Spaces & Capacities

2121 S Prairie Ave, Chicago, IL 60616

With 102 event spaces across 803,854 sq ft74,680 m² of function space, Marriott Marquis Chicago is a flexible choice for meetings and celebrations in Chicago. The largest room, Skyline Ballroom at McCormick Place W375, hosts up to 10,000 guests. Full capacity details for each room are below.

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Floor plans

Detailed floor plans for Marriott Marquis Chicago are published on the venue’s official site.

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Room capacities & dimensions

Room capacities and dimensions for Marriott Marquis Chicago
SpaceCeiling
AlgebraPlan this room →474 sq ft44 m²9 ft2.7 m————12—
AnalysisPlan this room →837 sq ft78 m²9 ft2.7 m508136752630
AnthropologyPlan this room →615 sq ft57 m²9 ft2.7 m306135452023
ArchitecturePlan this room →885 sq ft82 m²9 ft2.7 m507442752831
AstronomyPlan this room →612 sq ft57 m²9 ft2.7 m306935602427
BiologyPlan this room →650 sq ft60 m²9 ft2.7 m306939451821
BronzevillePlan this room →393 sq ft37 m²10 ft3 m————12—
CalculusPlan this room →850 sq ft79 m²9 ft2.7 m509052752629
ChemistryPlan this room →474 sq ft44 m²9 ft2.7 m————12—
China TownPlan this room →701 sq ft65 m²10 ft3 m40—60122412
CulturePlan this room →837 sq ft78 m²9 ft2.7 m508047752628
DancePlan this room →615 sq ft57 m²9 ft2.7 m306334452425
Daniel BurnhamPlan this room →1,563 sq ft145 m²10 ft3 m1001701081503844
Daniel Burnham APlan this room →827 sq ft77 m²10 ft3 m509148752223
Daniel Burnham BPlan this room →734 sq ft68 m²10 ft3 m406636602223
GeographyPlan this room →845 sq ft79 m²9 ft2.7 m509047752830
GeologyPlan this room →612 sq ft57 m²9 ft2.7 m305634452224
George PullmanPlan this room →1,364 sq ft127 m²10 ft3 m80108671203238
Glessner HousePlan this room →3,285 sq ft305 m²10 ft3 m170349201300102105
Glessner House APlan this room →749 sq ft70 m²10 ft3 m406238601818
Glessner House A/BPlan this room →2,198 sq ft204 m²10 ft3 m1002041131506051
Glessner House BPlan this room →1,579 sq ft147 m²10 ft3 m6014275904239
Glessner House B/CPlan this room →2,744 sq ft255 m²10 ft3 m1102391251657256
Glessner House CPlan this room →1,195 sq ft111 m²10 ft3 m509750753023
Grand Horizon APlan this room →3,000 sq ft279 m²29 ft8.8 m1502801321806060
Grand Horizon A/BPlan this room →6,009 sq ft558 m²29 ft8.8 m40044231242012090
Grand Horizon A/B/CPlan this room →9,230 sq ft857 m²29 ft8.8 m550722492660—120
Grand Horizon A/B/C/DPlan this room →14,421 sq ft1,340 m²29 ft8.8 m9601,1318041,060——
Grand Horizon BPlan this room →3,500 sq ft325 m²29 ft8.8 m2003121802406060
Grand Horizon B/CPlan this room →6,442 sq ft598 m²29 ft8.8 m45052036048012090
Grand Horizon BallroomPlan this room →25,000 sq ft2,323 m²29 ft8.8 m1,5003,0681,7302,600——
Grand Horizon CPlan this room →3,500 sq ft325 m²29 ft8.8 m2002881802406060
Grand Horizon DPlan this room →5,300 sq ft492 m²29 ft8.8 m240——400——
Grand Horizon D/E/F/GPlan this room →15,562 sq ft1,446 m²29 ft8.8 m9101,3098881,225——
Grand Horizon EPlan this room →3,124 sq ft290 m²29 ft8.8 m1502401442256060
Grand Horizon E/FPlan this room →6,745 sq ft627 m²29.6 ft9 m35056036052512090
Grand Horizon E/F/GPlan this room →10,371 sq ft963 m²29 ft8.8 m550880576825—120
Grand Horizon FPlan this room →4,000 sq ft372 m²29 ft8.8 m2003202003006060
Grand Horizon F/GPlan this room →7,247 sq ft673 m²29 ft8.8 m37064043260012090
Grand Horizon GPlan this room →4,000 sq ft372 m²29 ft8.8 m2803202003006060
Great Lakes BallroomPlan this room →25,000 sq ft2,323 m²24 ft7.3 m1,3903,0681,7302,100——
Great Lakes Ballroom APlan this room →3,000 sq ft279 m²24 ft7.3 m1502801321806060
Great Lakes Ballroom A/BPlan this room →6,081 sq ft565 m²24 ft7.3 m40044231242012090
Great Lakes Ballroom A/B/CPlan this room →9,286 sq ft863 m²24 ft7.3 m550702492660—120
Great Lakes Ballroom A/B/C/DPlan this room →14,478 sq ft1,345 m²24 ft7.3 m9601,1318041,060——
Great Lakes Ballroom BPlan this room →3,500 sq ft325 m²24 ft7.3 m2003121802406060
Great Lakes Ballroom B/CPlan this room →6,497 sq ft604 m²24 ft7.3 m45052036048012090
Great Lakes Ballroom CPlan this room →3,600 sq ft334 m²24 ft7.3 m2002881802406060
Great Lakes Ballroom DPlan this room →5,292 sq ft492 m²24 ft7.3 m240——400——
Great Lakes Ballroom D/E/F/GPlan this room →15,551 sq ft1,445 m²24 ft7.3 m9101,4448881,225——
Great Lakes Ballroom EPlan this room →3,120 sq ft290 m²24 ft7.3 m1502401442256060
Great Lakes Ballroom E/FPlan this room →6,739 sq ft626 m²24 ft7.3 m35056036052512090
Great Lakes Ballroom E/F/GPlan this room →10,360 sq ft962 m²24 ft7.3 m550880576825—120
Great Lakes Ballroom FPlan this room →4,000 sq ft372 m²24 ft7.3 m2003202003006060
Great Lakes Ballroom F/GPlan this room →7,240 sq ft673 m²24 ft7.3 m37064043260012090
Great Lakes Ballroom FoyerPlan this room →7,897 sq ft734 m²————900——
Great Lakes Ballroom GPlan this room →4,000 sq ft372 m²24 ft7.3 m2803202003006060
Henry ClarkePlan this room →1,355 sq ft126 m²10 ft3 m80108671203238
HistoryPlan this room →729 sq ft68 m²9 ft2.7 m509853752529
IntegralsPlan this room →640 sq ft59 m²9 ft2.7 m307631451821
John HancockPlan this room →635 sq ft59 m²10 ft3 m404524601620
JournalismPlan this room →838 sq ft78 m²9 ft2.7 m509754752629
Level 1Plan this room →——390——400——
Level 33Plan this room →3,000 sq ft279 m²————150——
LiteraturePlan this room →729 sq ft68 m²9 ft2.7 m307836452024
Marina CityPlan this room →894 sq ft83 m²10 ft3 m608854902020
Marshall FieldPlan this room →714 sq ft66 m²10 ft3 m404932601822
MusicPlan this room →400 sq ft37 m²9 ft2.7 m————12—
Northerly IslandPlan this room →662 sq ft62 m²10 ft3 m—6024401212
PhilosophyPlan this room →716 sq ft67 m²9 ft2.7 m508047752628
PhysicsPlan this room →473 sq ft44 m²9 ft2.7 m————12—
PhysiologyPlan this room →836 sq ft78 m²9 ft2.7 m508047752628
PoetryPlan this room →615 sq ft57 m²9 ft2.7 m306334452425
ProbabilityPlan this room →900 sq ft84 m²9 ft2.7 m509047752830
RR DonnelleyPlan this room →662 sq ft62 m²10 ft3 m405528601821
SciencePlan this room →612 sq ft57 m²9 ft2.7 m305634452224
SheddPlan this room →1,940 sq ft180 m²10 ft3 m1001681001504852
Shedd APlan this room →1,080 sq ft100 m²10 ft3 m507240752426
Shedd BPlan this room →880 sq ft82 m²10 ft3 m507250752426
Skyline Ballroom at McCormick Place W375Plan this room →100,289 sq ft9,317 m²40 ft12.2 m5,55010,0005,001———
Skyline Ballroom at McCormick Place W375APlan this room →15,257 sq ft1,417 m²40 ft12.2 m9301,680840———
Skyline Ballroom at McCormick Place W375ABPlan this room →33,696 sq ft3,130 m²40 ft12.2 m1,8003,2001,500———
Skyline Ballroom at McCormick Place W375ABCPlan this room →52,416 sq ft4,870 m²40 ft12.2 m2,7505,0002,400———
Skyline Ballroom at McCormick Place W375BPlan this room →18,720 sq ft1,739 m²40 ft12.2 m9801,768844———
Skyline Ballroom at McCormick Place W375BCPlan this room →37,398 sq ft3,474 m²40 ft12.2 m1,8003,5001,600———
Skyline Ballroom at McCormick Place W375CPlan this room →26,100 sq ft2,425 m²40 ft12.2 m9801,768844———
Skyline Ballroom at McCormick Place W375CDPlan this room →37,440 sq ft3,478 m²40 ft12.2 m1,9003,5001,600———
Skyline Ballroom at McCormick Place W375CDEPlan this room →66,144 sq ft6,145 m²40 ft12.2 m3,6006,5003,100———
Skyline Ballroom at McCormick Place W375DPlan this room →18,810 sq ft1,748 m²40 ft12.2 m9801,768844———
Skyline Ballroom at McCormick Place W375DEPlan this room →44,916 sq ft4,173 m²40 ft12.2 m2,6004,6502,300———
Skyline Ballroom at McCormick Place W375EPlan this room →27,383 sq ft2,544 m²40 ft12.2 m1,6803,0161,508———
SportsPlan this room →831 sq ft77 m²9 ft2.7 m509853752629
StatisticsPlan this room →640 sq ft59 m²9 ft2.7 m307631451821
TechnologyPlan this room →838 sq ft78 m²9 ft2.7 m509754752629
TheaterPlan this room →729 sq ft68 m²9 ft2.7 m307838452024
TrigonometryPlan this room →715 sq ft66 m²9 ft2.7 m406840602826
Water TowerPlan this room →2,304 sq ft214 m²10 ft3 m1201961221806060
Water Tower APlan this room →1,289 sq ft120 m²10 ft3 m6011066903034
Water Tower BPlan this room →1,055 sq ft98 m²10 ft3 m608246902428
William KimballPlan this room →348 sq ft32 m²10 ft3 m————12—
ZoologyPlan this room →401 sq ft37 m²9 ft2.7 m————12—
Additional spaces (dimensions only) (1)
Additional spaces with published dimensions only at Marriott Marquis Chicago
SpaceSq ft / m²Ceiling
Grand Horizon Ballroom Pre-FunctionPlan this room →8,095 sq ft752 m²—

Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.