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The Westin St. Louis

The Westin St. Louis

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+1 314-621-2000
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DATES (1 NIGHT) NIGHTS)
Flexible in
S M T W T F S
Number of Nights
1
Rooms & Guests
Maximum 8 guests per room
Rooms
(Max: 3 Rooms/person)
1
Adults
(Max: 8 total guests/room)
1
Children
(Max: 8 total guests/room)
0
AGE OF CHILDREN (REQUIRED)
Special Rates
  • Cupples Ballroom

Events

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15

Event Rooms

20874 SQ FT

Total Event Space

425

Capacity Largest Space

20

Breakout Rooms
Capacity Chart | Floor Plans | Equipments and Services
Westin St. Louis Ballroom

Meeting and Events

17,000 Square Ft Meeting and Event Space

Meeting Spaces Featuring Natural Light
Day Meeting Package- Food & Beverage, Audio Visual, Wi-Fi, Support Services
On Site Audio Visual Partner - Encore
24 Hour Business Center
Monitored Internet Performance for Highest Reliability
Westin St. Louis Wedding

Weddings and Occasions

Unique Event Space Options

Dream weddings don't just happen, they're planned. Marriott Certified Wedding Planners are trained to help. After completing demanding coursework, each Marriott Certified Wedding Planner is qualified to coordinate weddings of all types, including ethnic and military weddings. Relying on experience, training, tradition and old-fashioned intuition, Marriott Certified Wedding Planners can help you determine an overall vision for your wedding and help you execute each detail. That includes setting an event budget; deciding on a menu; arranging table settings; and finding florists, photographers, a band and other entertainment for the big day.
Professional Social Catering Specialist
Customized Catering Options Available Learn More
Natural Lighting in Event Spaces
AAA Four Diamond Rating
Flexible Food and Beverage Package
private dining austin
Rewarding Travel from start to Finish
Earn up to 60,000 points per qualified event with Marriott Bonvoy Events. Elite members earn more with bonus points.
See how we're rewarding events

Please note: all room sizes are approximate.

Feet Meters
Meeting Room Dimensions (LxWxH) Area (sq.ft) Theater Schoolroom Conference U-Shape Reception Banquet
Cupples Ballroom 32x80x11 2560 270 140 - - 300 160
Promenade Ballroom 46x99x15 4554 300 190 - - 400 270
Plaza 27x42x8 1134 80 45 35 28 90 60
Commerce 31x36x8 1116 70 45 28 28 110 60
Concourse 35x36x9 1260 80 54 36 32 150 60
Stadium Boardroom 25x29x8 725 - - 14 - - -
Marquee Boardroom 27x27x8 729 - - 14 - - -
Century 24x17x7 408 25 16 16 15 30 24
Landmark 33x14x9 462 36 20 22 18 30 30
Spruce 31x29x7 899 40 24 24 20 45 30
Tressel 27x29x8 783 45 24 24 20 45 30
Chouteau 12x25x7 300 - - 10 - - -
Carriage 18x28x7 504 36 21 22 - 40 30
Cupples Foyer 42x80x11 3360 - - - - 200 -
Promenade Foyer 80x26x15 2080 - - - - 250 100
Commerce A 14x24x8 336 63 28 31 28 80 30
Concourse B 23x15x11 345 44 21 18 25 60 30
Plaza A 24x20x8 480 45 21 23 25 60 20
Plaza B 21x21x8 441 65 30 28 24 90 30
Concourse A 35x19x9 665 65 25 30 25 100 40
Cupples Ballroom AB 32x50x11 1600 170 100 - 45 220 120
Cupples Ballroom C 32x29x11 928 100 60 40 35 150 80
Promenade Ballroom BC 46x66x15 3036 360 150 - - 425 240
Promenade Ballroom AB 46x68x15 3128 330 129 - - 425 240
Promenade Ballroom C 46x30x15 1380 200 75 30 30 175 100
Cupples Ballroom
Dimensions (LxWxH)
32x80x11
Area (sq.ft)
2560
Theater
270
Schoolroom
140
Conference
-
U-Shape
-
Reception
300
Banquet
160
Promenade Ballroom
Dimensions (LxWxH)
46x99x15
Area (sq.ft)
4554
Theater
300
Schoolroom
190
Conference
-
U-Shape
-
Reception
400
Banquet
270
Plaza
Dimensions (LxWxH)
27x42x8
Area (sq.ft)
1134
Theater
80
Schoolroom
45
Conference
35
U-Shape
28
Reception
90
Banquet
60
Commerce
Dimensions (LxWxH)
31x36x8
Area (sq.ft)
1116
Theater
70
Schoolroom
45
Conference
28
U-Shape
28
Reception
110
Banquet
60
Concourse
Dimensions (LxWxH)
35x36x9
Area (sq.ft)
1260
Theater
80
Schoolroom
54
Conference
36
U-Shape
32
Reception
150
Banquet
60
Stadium Boardroom
Dimensions (LxWxH)
25x29x8
Area (sq.ft)
725
Theater
-
Schoolroom
-
Conference
14
U-Shape
-
Reception
-
Banquet
-
Marquee Boardroom
Dimensions (LxWxH)
27x27x8
Area (sq.ft)
729
Theater
-
Schoolroom
-
Conference
14
U-Shape
-
Reception
-
Banquet
-
Century
Dimensions (LxWxH)
24x17x7
Area (sq.ft)
408
Theater
25
Schoolroom
16
Conference
16
U-Shape
15
Reception
30
Banquet
24
Landmark
Dimensions (LxWxH)
33x14x9
Area (sq.ft)
462
Theater
36
Schoolroom
20
Conference
22
U-Shape
18
Reception
30
Banquet
30
Spruce
Dimensions (LxWxH)
31x29x7
Area (sq.ft)
899
Theater
40
Schoolroom
24
Conference
24
U-Shape
20
Reception
45
Banquet
30
Tressel
Dimensions (LxWxH)
27x29x8
Area (sq.ft)
783
Theater
45
Schoolroom
24
Conference
24
U-Shape
20
Reception
45
Banquet
30
Chouteau
Dimensions (LxWxH)
12x25x7
Area (sq.ft)
300
Theater
-
Schoolroom
-
Conference
10
U-Shape
-
Reception
-
Banquet
-
Carriage
Dimensions (LxWxH)
18x28x7
Area (sq.ft)
504
Theater
36
Schoolroom
21
Conference
22
U-Shape
-
Reception
40
Banquet
30
Cupples Foyer
Dimensions (LxWxH)
42x80x11
Area (sq.ft)
3360
Theater
-
Schoolroom
-
Conference
-
U-Shape
-
Reception
200
Banquet
-
Promenade Foyer
Dimensions (LxWxH)
80x26x15
Area (sq.ft)
2080
Theater
-
Schoolroom
-
Conference
-
U-Shape
-
Reception
250
Banquet
100
Commerce A
Dimensions (LxWxH)
14x24x8
Area (sq.ft)
336
Theater
63
Schoolroom
28
Conference
31
U-Shape
28
Reception
80
Banquet
30
Concourse B
Dimensions (LxWxH)
23x15x11
Area (sq.ft)
345
Theater
44
Schoolroom
21
Conference
18
U-Shape
25
Reception
60
Banquet
30
Plaza A
Dimensions (LxWxH)
24x20x8
Area (sq.ft)
480
Theater
45
Schoolroom
21
Conference
23
U-Shape
25
Reception
60
Banquet
20
Plaza B
Dimensions (LxWxH)
21x21x8
Area (sq.ft)
441
Theater
65
Schoolroom
30
Conference
28
U-Shape
24
Reception
90
Banquet
30
Concourse A
Dimensions (LxWxH)
35x19x9
Area (sq.ft)
665
Theater
65
Schoolroom
25
Conference
30
U-Shape
25
Reception
100
Banquet
40
Cupples Ballroom AB
Dimensions (LxWxH)
32x50x11
Area (sq.ft)
1600
Theater
170
Schoolroom
100
Conference
-
U-Shape
45
Reception
220
Banquet
120
Cupples Ballroom C
Dimensions (LxWxH)
32x29x11
Area (sq.ft)
928
Theater
100
Schoolroom
60
Conference
40
U-Shape
35
Reception
150
Banquet
80
Promenade Ballroom BC
Dimensions (LxWxH)
46x66x15
Area (sq.ft)
3036
Theater
360
Schoolroom
150
Conference
-
U-Shape
-
Reception
425
Banquet
240
Promenade Ballroom AB
Dimensions (LxWxH)
46x68x15
Area (sq.ft)
3128
Theater
330
Schoolroom
129
Conference
-
U-Shape
-
Reception
425
Banquet
240
Promenade Ballroom C
Dimensions (LxWxH)
46x30x15
Area (sq.ft)
1380
Theater
200
Schoolroom
75
Conference
30
U-Shape
30
Reception
175
Banquet
100
Meeting Room Dimensions (LxWxH) Area (sq.mt) Theater Schoolroom Conference U-Shape Reception Banquet
Cupples Ballroom 9.8x24.4x3.4 237.8 270 140 - - 300 160
Promenade Ballroom 14x30.2x4.6 423.1 300 190 - - 400 270
Plaza 8.2x12.8x2.4 105.4 80 45 35 28 90 60
Commerce 9.4x11x2.4 103.7 70 45 28 28 110 60
Concourse 10.7x11x2.7 117.1 80 54 36 32 150 60
Stadium Boardroom 7.6x8.8x2.4 67.4 - - 14 - - -
Marquee Boardroom 8.2x8.2x2.4 67.7 - - 14 - - -
Century 7.3x5.2x2.1 37.9 25 16 16 15 30 24
Landmark 10.1x4.3x2.7 42.9 36 20 22 18 30 30
Spruce 9.4x8.8x2.1 83.5 40 24 24 20 45 30
Tressel 8.2x8.8x2.4 72.7 45 24 24 20 45 30
Chouteau 3.7x7.6x2.1 27.9 - - 10 - - -
Carriage 5.5x8.5x2.1 46.8 36 21 22 - 40 30
Cupples Foyer 12.8x24.4x3.4 312.2 - - - - 200 -
Promenade Foyer 24.4x7.9x4.6 193.2 - - - - 250 100
Commerce A 4.3x7.3x2.4 31.2 63 28 31 28 80 30
Concourse B 7x4.6x3.4 32.1 44 21 18 25 60 30
Plaza A 7.3x6.1x2.4 44.6 45 21 23 25 60 20
Plaza B 6.4x6.4x2.4 41 65 30 28 24 90 30
Concourse A 10.7x5.8x2.7 61.8 65 25 30 25 100 40
Cupples Ballroom AB 9.8x15.2x3.4 148.6 170 100 - 45 220 120
Cupples Ballroom C 9.8x8.8x3.4 86.2 100 60 40 35 150 80
Promenade Ballroom BC 14x20.1x4.6 282.1 360 150 - - 425 240
Promenade Ballroom AB 14x20.7x4.6 290.6 330 129 - - 425 240
Promenade Ballroom C 14x9.1x4.6 128.2 200 75 30 30 175 100
Cupples Ballroom
Dimensions (LxWxH)
9.8x24.4x3.4
Area (sq.mt)
237.8
Theater
270
Schoolroom
140
Conference
-
U-Shape
-
Reception
300
Banquet
160
Promenade Ballroom
Dimensions (LxWxH)
14x30.2x4.6
Area (sq.mt)
423.1
Theater
300
Schoolroom
190
Conference
-
U-Shape
-
Reception
400
Banquet
270
Plaza
Dimensions (LxWxH)
8.2x12.8x2.4
Area (sq.mt)
105.4
Theater
80
Schoolroom
45
Conference
35
U-Shape
28
Reception
90
Banquet
60
Commerce
Dimensions (LxWxH)
9.4x11x2.4
Area (sq.mt)
103.7
Theater
70
Schoolroom
45
Conference
28
U-Shape
28
Reception
110
Banquet
60
Concourse
Dimensions (LxWxH)
10.7x11x2.7
Area (sq.mt)
117.1
Theater
80
Schoolroom
54
Conference
36
U-Shape
32
Reception
150
Banquet
60
Stadium Boardroom
Dimensions (LxWxH)
7.6x8.8x2.4
Area (sq.mt)
67.4
Theater
-
Schoolroom
-
Conference
14
U-Shape
-
Reception
-
Banquet
-
Marquee Boardroom
Dimensions (LxWxH)
8.2x8.2x2.4
Area (sq.mt)
67.7
Theater
-
Schoolroom
-
Conference
14
U-Shape
-
Reception
-
Banquet
-
Century
Dimensions (LxWxH)
7.3x5.2x2.1
Area (sq.mt)
37.9
Theater
25
Schoolroom
16
Conference
16
U-Shape
15
Reception
30
Banquet
24
Landmark
Dimensions (LxWxH)
10.1x4.3x2.7
Area (sq.mt)
42.9
Theater
36
Schoolroom
20
Conference
22
U-Shape
18
Reception
30
Banquet
30
Spruce
Dimensions (LxWxH)
9.4x8.8x2.1
Area (sq.mt)
83.5
Theater
40
Schoolroom
24
Conference
24
U-Shape
20
Reception
45
Banquet
30
Tressel
Dimensions (LxWxH)
8.2x8.8x2.4
Area (sq.mt)
72.7
Theater
45
Schoolroom
24
Conference
24
U-Shape
20
Reception
45
Banquet
30
Chouteau
Dimensions (LxWxH)
3.7x7.6x2.1
Area (sq.mt)
27.9
Theater
-
Schoolroom
-
Conference
10
U-Shape
-
Reception
-
Banquet
-
Carriage
Dimensions (LxWxH)
5.5x8.5x2.1
Area (sq.mt)
46.8
Theater
36
Schoolroom
21
Conference
22
U-Shape
-
Reception
40
Banquet
30
Cupples Foyer
Dimensions (LxWxH)
12.8x24.4x3.4
Area (sq.mt)
312.2
Theater
-
Schoolroom
-
Conference
-
U-Shape
-
Reception
200
Banquet
-
Promenade Foyer
Dimensions (LxWxH)
24.4x7.9x4.6
Area (sq.mt)
193.2
Theater
-
Schoolroom
-
Conference
-
U-Shape
-
Reception
250
Banquet
100
Commerce A
Dimensions (LxWxH)
4.3x7.3x2.4
Area (sq.mt)
31.2
Theater
63
Schoolroom
28
Conference
31
U-Shape
28
Reception
80
Banquet
30
Concourse B
Dimensions (LxWxH)
7x4.6x3.4
Area (sq.mt)
32.1
Theater
44
Schoolroom
21
Conference
18
U-Shape
25
Reception
60
Banquet
30
Plaza A
Dimensions (LxWxH)
7.3x6.1x2.4
Area (sq.mt)
44.6
Theater
45
Schoolroom
21
Conference
23
U-Shape
25
Reception
60
Banquet
20
Plaza B
Dimensions (LxWxH)
6.4x6.4x2.4
Area (sq.mt)
41
Theater
65
Schoolroom
30
Conference
28
U-Shape
24
Reception
90
Banquet
30
Concourse A
Dimensions (LxWxH)
10.7x5.8x2.7
Area (sq.mt)
61.8
Theater
65
Schoolroom
25
Conference
30
U-Shape
25
Reception
100
Banquet
40
Cupples Ballroom AB
Dimensions (LxWxH)
9.8x15.2x3.4
Area (sq.mt)
148.6
Theater
170
Schoolroom
100
Conference
-
U-Shape
45
Reception
220
Banquet
120
Cupples Ballroom C
Dimensions (LxWxH)
9.8x8.8x3.4
Area (sq.mt)
86.2
Theater
100
Schoolroom
60
Conference
40
U-Shape
35
Reception
150
Banquet
80
Promenade Ballroom BC
Dimensions (LxWxH)
14x20.1x4.6
Area (sq.mt)
282.1
Theater
360
Schoolroom
150
Conference
-
U-Shape
-
Reception
425
Banquet
240
Promenade Ballroom AB
Dimensions (LxWxH)
14x20.7x4.6
Area (sq.mt)
290.6
Theater
330
Schoolroom
129
Conference
-
U-Shape
-
Reception
425
Banquet
240
Promenade Ballroom C
Dimensions (LxWxH)
14x9.1x4.6
Area (sq.mt)
128.2
Theater
200
Schoolroom
75
Conference
30
U-Shape
30
Reception
175
Banquet
100
Banquet
Generally used for meals and sessions involving small group discussions. A five foot round table seats eight people comfortably. A six foot round table seats 10 people comfortably.
Conference and Hollow Square
Appropriate for interactive discussions and note-taking sessions for fewer than 25 people. Many hotels have elegant "boardrooms" for 10 to 20 people, equipped with full audiovisual capabilities, a writing board, cork board and a flip chart.
E-Shape, U-Shape and T-Shape
Appropriate for groups of fewer than 40 people. These are best for interaction with a leader seated at the head of the setup. Audiovisual is usually best set up at the open end of the seating.
Theater
Appropriate for large sessions and short lectures that do not require extensive note-taking. This is a convenient setup to use before breaking into discussion or role-playing groups because chairs can be moved.
Reception
Stand-up social function where beverages and light foods are served. Foods may be presented on small buffet tables or passed by servers. May precede a meal function.
Schoolroom or Classroom
The most desirable setup for medium to large-size lectures. Requires a relatively large room. Tables provide attendees with space for spreading out materials and taking notes.
Ovals and Rounds
Generally used for meals and sessions involving small group discussions. A five foot round table seats eight people comfortably. A six foot round table seats 10 people comfortably.
Audio-Visual Equipment
  • AV Technician
  • LCD Projector
  • TV
Event Services
  • Certified Meeting Planner
  • Event Lighting
  • Security Guards
Event Equipment & Supplies
  • Direction Signs
  • Easels
  • Flip Chart & Markers
  • Installed Stage
  • Pens / Pencils / Notepad
  • Podium Lectern
  • Spotlights
  • Stack Chairs
  • Tables
Business Services
  • Computers
  • Copy Service
  • Printers

Frequently Asked Questions

The Westin St. Louis has 15 event rooms.

The largest capacity event rooms are Promenade Ballroom AB, Promenade Ballroom BC. They have a capacity of 425.

Yes, The Westin St. Louis provides wedding services.

To book a meeting or event at The Westin St. Louis click here

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