Description
20m Wide Event Crest
The Extreme Crest (EC) Series 20m Wide Clear Span A-Frame is our most advanced large-format marquee solution. Featuring a fully clear internal span and expandable widths up to 60m, it’s purpose-built for major events, logistics, and commercial projects. Engineered for strength and reliability, this structure delivers maximum space efficiency with professional-grade performance.
Oversize product. Forklift or HIAB required for delivery.
Contact us for 15m wide.
Specification Sheet > Instructions > Engineer Certificate > Fire Test PVC Certificate >
| Clear Span Width | 20m |
| Eave Height | 4m |
| Ridge Height | 7.16m |
| Roof Pitch | 18º |
| Bay Distance | 5m |
| Roof Fixing | Bar tensioning |
| Frame Profile | 203 x 112 x 4mm (4-channel) |
| Max Allowed Windspeed | 80km/hr 0.5kn/m2 |
| Eave Connectors | Hot-dip galvanized steel insert |
| Frame Material | Hard pressed extruded aluminium 6061/T6 (13HW) |
| Roof Fabric | 850gsm white or coloured PVC / 950gsm clear PVC / 650gsm white PVC |
| Frame Warranty | 10 years |
| Roof Warranty | 5 years white or coloured PVC / 2 years printed or clear PVC |

Capacity Chart
| Size | Area (sqm) |
Cocktail Standing |
Theatre Seating |
Seating Trestle Table |
Seating Round Table |
| 20m x 25m | 500 | 664 | 540 | 400 | 400-480 |
| 20m x 30m | 600 | 800 | 640 | 480 | 480-600 |
| 20m x 35m | 700 | 936 | 760 | 560 | 560-700 |
| 20m x 40m | 800 | 1,064 | 860 | 640 |
640-800 |
This capacity chart is provided for general guidance only. Local regulations may dictate allowed capacity which may be different from the numbers we have provided.
Theatre seating
Includes a 1m centre aisle and a 3m section at the front for presentation/ceremony
Trestle tables
2.4m trestle tables seating 8 people each. This number uses the whole marquee, there is no room for anything else such as a dance floor or buffet tables
Round tables
1.8m round tables seating 10-12 each. This number uses the whole marquee, there is no room for anything else such as a dance floor or buffet tables etc.
Add-on accessories available (contact us for pricing)





















