There’s no rulebook that says a wedding party needs exactly four groomsmen, or six, or ten. But the number you land on has a bigger ripple effect than most grooms expect, and most of that ripple lands squarely on suits: sizing, budget, fittings, and how much coordinating you’re willing to take on in the months before the wedding.

There’s No “Right” Number, But There Is a Practical One

Most Australian weddings settle somewhere between two and six groomsmen, roughly mirroring the size of the bridal party. Small, intimate weddings often go with one or two, close friends or brothers who’ve been there through everything. Larger weddings, especially ones with 100+ guests, tend toward four to six, since a bigger crowd usually means a bigger circle of people the couple wants standing up front with them.

There’s no correct answer here, only a trade-off. More groomsmen means a fuller photo line-up and more people sharing the load of speeches, logistics, and bucks-party planning. Fewer means an easier day to manage and a lot less coordinating to do beforehand, particularly around suits.

Why the Number Matters More for Suits Than Anything Else

Flowers, seating charts, and favours don’t really change in difficulty based on headcount. Suits do.

Sizing spreads out fast. Two groomsmen are usually easy: you know their builds, you can get both fitted in a single afternoon. Six groomsmen almost always means six different body types, at least one interstate fitting, and someone who “will get to it closer to the date.” The more people in the lineup, the earlier you need to start.

Budget multiplies literally. Whether groomsmen are covering their own suits or the groom is footing the bill, the maths is blunt: a $400 hire per person is $1,600 for four groomsmen and $2,400 for six. That’s worth deciding early, not the week fittings start.

Fitting timelines compress. A single suit can be fitted and altered inside a few weeks. A full party of five or six, especially with mixed availability and at least one person who lives in another city, realistically needs three to four months of lead time to get everyone measured, ordered, and through at least one alteration pass before the big day.

Consistency gets harder to control. With one or two groomsmen, matching jacket colour, lapel style, and even shoe tone is simple. With six, small variations creep in unless everyone is sourced from the same place, which is exactly why most grooms with larger parties choose a single supplier rather than letting everyone hire or buy separately.

A Practical Way to Decide

Instead of picking a headcount first and figuring out suits later, it’s worth working backwards from three questions:

• Who genuinely needs to be up there? Not who you’d feel obligated to ask, but who you’d actually want next to you on the day.
• How much lead time do you realistically have? If the wedding is under four months away, a smaller, easier-to-coordinate party is the more forgiving choice.
• Are you comfortable managing several people’s measurements, fittings, and payments? If not, a smaller group, or a single supplier who can handle sizing for the whole party, removes most of the stress.

Coordinating a Larger Group Without It Becoming a Second Job

If you’ve landed on four, five, or six groomsmen, the single biggest time-saver is sourcing everyone from one place instead of leaving each person to sort their own suit. It keeps colour, fabric, and fit consistent across the group photo, avoids the “close enough” navy that doesn’t quite match, and means one point of contact chasing measurements instead of five separate group chats going nowhere.

Suppliers who specialise specifically in wedding party suits are set up for exactly this scenario: coordinating multiple fittings, keeping every groomsman in matching fabric and colour, and working to the kind of timeline a wedding actually needs rather than a standard retail turnaround.

The Bottom Line

The number of groomsmen you choose isn’t really a suit decision, it’s a relationships decision. But once you’ve made it, the suit logistics follow directly from that number. Two groomsmen give you room to sort things out casually. Six groomsmen mean you need a plan, a timeline, and ideally one supplier holding the whole group together. Decide the headcount based on who belongs beside you, then build the suit timeline around whatever number you land on, not the other way around.