Courtyard by Marriott Gaithersburg Washingtonian Center — Event Spaces, Floor Plans & Capacities
204 Boardwalk Pl, Gaithersburg, MD 20878
4 rooms · largest space: Rio Ballroom (A-B-C), 2,673 sq ft248 m²
Courtyard by Marriott Gaithersburg Washingtonian Center in Gaithersburg offers 4 event rooms. The largest space is Rio Ballroom (A-B-C), 2,673 sq ft248 m² (divisible into 3 sections). It holds up to 210 guests. Explore the floor plans and capacity charts below, or start arranging your own layout in the free planner.
Plan an event in Rio Ballroom (A-B-C): open a free to-scale layout seating 80 at round tables in its 27 × 99 ft footprint at floors.live/start — no account needed.
Across its 4 rooms, Courtyard by Marriott Gaithersburg Washingtonian Center handles theater-style sessions for up to 210, seated banquets for 144 and standing receptions for 180. Exact figures for every room and setup style are in the chart below.
Unverified listing — compiled from Courtyard by Marriott Gaithersburg Washingtonian Center’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/maryland/gaithersburg/courtyard-by-marriott-gaithersburg-washingtonian-center/?claim=1.
Floor plans
Detailed floor plans for Courtyard by Marriott Gaithersburg Washingtonian Center are published on the venue’s official site.
Work at this venue? to publish your official floor plans and 360° tours here — free.
Room capacities & dimensions
4 rooms, 5 configurations. Combined and divided set-ups are listed under their room.
| Space | Sq ft / m² | Ceiling | Banquet | Theater | Classroom | Reception | Conference | U-Shape | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outdoor TerracePlan this room → | 1,274 sq ft118 m² | — | — | — | — | 60 | — | — | ||||||||||||||||||
| Rio APlan this room → | 891 sq ft83 m² | 9 ft2.7 m | 48 | 70 | 40 | 60 | 25 | 27 | ||||||||||||||||||
1 configuration with Rio A
| ||||||||||||||||||||||||||
| Rio BPlan this room → | 891 sq ft83 m² | 9 ft2.7 m | 48 | 70 | 40 | 60 | 25 | 27 | ||||||||||||||||||
| Rio CPlan this room → | 891 sq ft83 m² | 9 ft2.7 m | 48 | 70 | 40 | 60 | 25 | 27 | ||||||||||||||||||
Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.
Sizing another room? Try the event room capacity calculator or the floor plan scale converter.
Frequently asked questions
What is the floor plan of Courtyard by Marriott Gaithersburg Washingtonian Center?
Courtyard by Marriott Gaithersburg Washingtonian Center has 4 rooms. The largest space is Rio Ballroom (A-B-C), 2,673 sq ft (27 × 99 ft). Every room's dimensions and seating capacity by setup are listed on this page. Courtyard by Marriott Gaithersburg Washingtonian Center's own floor plans are published on its website, linked from this page.
How many event rooms does Courtyard by Marriott Gaithersburg Washingtonian Center have?
Courtyard by Marriott Gaithersburg Washingtonian Center has 4 rooms. 5 configurations are listed on this page.
What is the largest space at Courtyard by Marriott Gaithersburg Washingtonian Center?
Rio Ballroom (A-B-C), 2,673 sq ft (divisible into 3 sections): 27 × 99 ft, 144 banquet / 210 theater.
How many people can Courtyard by Marriott Gaithersburg Washingtonian Center seat for a banquet?
Up to 144 in Rio Ballroom (A-B-C).
Can Rio Ballroom (A-B-C) be divided?
Yes. Rio Ballroom (A-B-C) divides into 3 sections: Rio A, Rio B, Rio C.
What is the ceiling height at Courtyard by Marriott Gaithersburg Washingtonian Center?
The highest ceiling is 9 ft, in Rio A.
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