Party Marquee for Sale — Backyard & 21st Birthday Shelters
Looking for a party marquee for sale that turns a backyard into a proper venue? Whether it's a 21st, a big birthday, or a long Sunday session that needs shade and cover, owning your own marquee means it's ready every time you throw a party — no scramble, no last-minute panic. Below we break down the two sizes that suit backyard parties best, how many guests each one fits, and how to pick the right one.
The two best sizes for backyard parties
For most Aussie backyards, the sweet spot is the 3×6m marquee or the 3×9m marquee. Both sit on a lightweight, rust-free aluminium frame with waterproof, UV-treated walls, so they handle sun and a surprise shower the same.
- 3×6m (18m²) — the all-rounder. Holds ~30 standing, ~20 seated, or ~12 at dining tables. Perfect for an intimate 21st, a milestone birthday, or a backyard BBQ where people mingle.
- 3×9m (27m²) — the party size. Holds ~45 standing, ~30 seated, or ~18 dining. The pick when the guest list grows, you want a dance-floor corner, or you're adding a bar and a food table.
How many guests will fit?
Capacity depends on what people are doing under there. Standing-and-mingling fits the most; dining tables eat the most room. Here's the quick maths:
| Marquee | Area | Standing | Seated | Dining |
|---|---|---|---|---|
| 3×6m | 18m² | ~30 | ~20 | ~12 |
| 3×9m | 27m² | ~45 | ~30 | ~18 |
Rule of thumb: allow 0.6m² per person standing, 0.9m² for seated rows, and 1.5m² for dining tables. Add about 25% on top if you want a dance floor, a bar, or a buffet under cover. Not sure? Plug your numbers into the marquee size calculator for an exact answer.
Planning a 21st? Read this first
21sts run later and louder than a daytime BBQ, so plan for after dark and the weather turning. A few things that make the night work:
- Go a size up if it's borderline. People cluster under cover when it's cold or raining late, so the 3×9m gives breathing room a 3×6m won't once everyone's in.
- Leave a corner for the dance floor or speaker. Factor that 25% extra space in before you commit to a size.
- Side walls = shelter + ambience. Closing the walls keeps the warmth in and lets you run festoon lights for that proper-venue look.
- Set up early. Because it's yours, you can put it up the day before and decorate at your own pace — no rushing on the day.
Why owning your own marquee makes sense
Buy once and it's on hand for every party after — birthdays, Christmas, the next milestone, even backyard shade over summer. Store it flat in the shed and it's ready to go whenever you are. It packs down to a manageable size and two people can have it up in well under an hour. Your own marquee, always ready when the next party lands.
Smaller crowd, or want more room?
For a tight, intimate gathering the 3×3m popup is ideal, but it's currently out of stock — email us to be notified when it's back. Going bigger? The 3×12m event shelter (36m², ~60 standing) steps it up again. Browse everything on the full range.
Ready to order
Every marquee ships free across Australia and is dispatched in ~2 days — order online and it's on its way. Still weighing up 3×6m vs 3×9m? Email support@brisbanemarqueesales.com.au with your guest count and backyard size and we'll point you to the right one.
View the 3×6m marquee → | View the 3×9m marquee →
Common questions
What size party marquee do I need for a 21st birthday?
For a 21st with around 30 guests mingling, the 3×6m marquee (18m², ~30 standing) works well. If your guest list is closer to 40–45, or you want room for a dance floor and a bar, step up to the 3×9m marquee (27m², ~45 standing). 21sts run late and people cluster under cover when it cools down, so going a size up is rarely a mistake.
How many people fit under a 3×6m marquee?
A 3×6m marquee is 18m² and holds roughly 30 people standing, 20 seated, or 12 at dining tables. Add about 25% extra space if you want a dance floor, bar, or buffet under cover.
Is the 3×6m or 3×9m better for a backyard party?
The 3×6m suits intimate parties and BBQs of up to ~30 standing guests and fits most backyards comfortably. The 3×9m (~45 standing) is the better pick when the guest list grows or you want space for a dance floor, bar, and food table. Use the marquee size calculator with your guest count to confirm.
How fast will my party marquee arrive?
Order online and your marquee is dispatched in about 2 days, with free delivery Australia-wide. We recommend ordering with a week or more up your sleeve before the party so you have time to do a practice setup.
Is the 3×3m popup marquee available?
The 3×3m popup gazebo is currently out of stock. Email support@brisbanemarqueesales.com.au to be notified when it's back, or consider the 3×6m marquee if you need cover sooner.