Housing your guests is one of the first real decisions of a destination wedding, and it is quietly one of the most consequential, because some versions of it commit you financially and some do not. Everyone tells you to set up a room block. Almost no one explains that "room block" describes three different arrangements, with three very different levels of commitment, and that signing the wrong one can leave you personally owing the hotel for rooms your guests never booked.
Here is the honest version, from the least binding option to the most. Think of it as a ladder: the higher you climb, the more certainty you get for your guests, and the more you commit in return.
So here is the honest version, from the least binding option to the most. Think of it as a ladder: the higher you go, the more certainty your guests get, but the more you commit in return.
Rung one: the courtesy block
A courtesy block is the hotel setting aside rooms in the categories you choose, held until a cutoff date, for your guests to book on their own. There's usually no deposit and no financial obligation on you, and any rooms still unbooked at the cutoff simply release back to the hotel.
There may be a modest group rate attached, but it's held rather than guaranteed. What really separates a courtesy block from a contracted one is liability, not the rate. With a courtesy block, you don't carry any.
That sounds like the obvious choice, and for a small guest list it sometimes is. But there are two real limits.
The rooms are held, not guaranteed. Because you haven't committed to anything, the hotel hasn't committed much in return. In a busy season, guests who book late can find the block full and end up paying more or staying somewhere else.
Most destination weddings won't qualify. Courtesy blocks usually top out somewhere between 10 and 25 rooms a night, and many luxury and all-inclusive resorts don't offer them at all. So the no-commitment option is often off the table for exactly the celebrations that need the most rooms.
A courtesy block gives you flexibility. What it doesn't give you is certainty that your people will have a place to stay.
Rung two: the contracted block, and attrition
A contracted block is a formal agreement. The hotel guarantees a set number of rooms at a locked group rate, often with extras like upgrades or complimentary rooms once enough of the block books. In exchange, you commit to filling most of it.
That commitment is called attrition, and it's the word to understand before you sign anything.
Your contract sets a threshold, a percentage of the block you're responsible for filling. Eighty percent is the most common for weddings. If your guests book fewer rooms than that, you owe the hotel for the shortfall, usually at the contracted rate. The rooms don't quietly release the way they do in a courtesy block.
Here's how that plays out with round numbers. Say you contract 40 rooms at 80 percent attrition, which makes you responsible for 32. If only 25 book, you're responsible for the other 7, every night of the block. On a $1,000 room over four nights, that's $28,000 for rooms nobody slept in.
None of that is a reason to avoid a contracted block. For most destination weddings it's the right structure, because it's the only one that actually guarantees your guests a room and a rate. It's a reason to understand what you're signing, and to have it structured in your favor.
The clauses that sit next to attrition
A few other terms live right beside attrition, and they matter just as much.
The cutoff date. This is when unbooked rooms release back to the hotel, usually somewhere between 30 and 60 days out. Guests who book after it may find the group rate gone.
The resell clause. This one protects you, so it's worth insisting on. It requires the hotel to try to resell any rooms your guests didn't book, and any room they do resell comes off what you owe. Put plainly, you should never pay for a room the hotel has already sold to someone else.
Review dates. Some contracts let you release part of the block at set points before the cutoff (say, 90 or 60 days out) without penalty. If RSVPs come in lighter than expected, that's your chance to resize the block before attrition applies.
Force majeure. This covers who carries the risk if a hurricane or another disaster makes the wedding impossible. For a celebration in the Caribbean or Mexico, it deserves a careful read, not a skim.
How many rooms should you block?
This is where the whole thing is won or lost, because attrition is really a block-sizing problem. Block too optimistically and you've signed up for rooms that won't fill. Block too conservatively and your guests can't get a room.
You'll often see 75 percent quoted as the share of a guest list that travels, but that's closer to a hometown wedding. For destination weddings, the surveys land lower. WeddingWire found couples invited 94 guests on average and 53 attended, a little over half, and other industry estimates run from about 40 to 70 percent.
Those are averages, though, and an average isn't your list.
You know your people better than any percentage does. The family and friends who've always shown up for you will show up for this. The ones who've always been flaky will be flaky here too. A destination wedding doesn't change anyone's habits, it just adds a plane ticket.
So the right block size isn't the national average applied blindly. It's your honest read of who genuinely travels, adjusted for the cost and distance of this particular trip, and that judgment is what keeps you from signing a commitment you didn't need.
Rung three: the full buyout
At the top of the ladder is taking the entire property. Mechanically, a buyout is a room block scaled to the whole hotel. You reserve every room for a set number of nights, either paying upfront and having guests reimburse you, or putting down a deposit while guests book directly. The contract looks a lot like a contracted block, just enlarged to cover everything.
What a buyout gets you isn't a rate. It's the whole place. Every room, the pool, the beach, the dining spaces, all yours, with no other travelers on the property. For a celebration built around a full week with the people you love most, it's the version where nothing competes with your event. Welcome dinner, ceremony, reception, and farewell, all in one place, with nobody else moving through the background of your week.
There's one honest tradeoff, and it's worth understanding before you fall for the idea. A buyout only works when your guest list and the property's size match. Take a property much larger than your list and you're paying for empty rooms. So a buyout usually means choosing a property sized to your guest count, or adjusting your guest count to fit a property you love. Neither is wrong, but it's a decision to make on purpose.
That's why the properties that make the most sense for a buyout are the intimate ones, boutique hotels and private islands rather than large resorts. Bigger resorts can do them, but the math rarely works for a wedding-sized guest list. If a whole-island celebration is the picture in your head (the kind that places like Jumby Bay or Fregate Island make possible), the buyout is the arrangement that delivers it.
What the right answer depends on
None of this is really about getting the lowest price. A group rate isn't about squeezing out a discount. It's about certainty, locking in your guests' rooms and rate so the hotel can't sell out from under the people traveling to celebrate with you. The whole ladder comes down to how much certainty you want for your guests, and how much you're willing to commit to guarantee it.
That's a hosting decision, not a bargain-hunting one. And it's exactly the kind of thing worth having someone in your corner for: reading your real guest list, sizing the block to it, negotiating the attrition threshold and the resell clause, and pushing for a contract that protects you rather than only the hotel.
Room blocks are part of what I handle directly, alongside the wedding itself, so the block and the celebration are planned by the same person from the start. If you're not sure yet who's really coming or how much you want to commit, the Legacy Wedding Blueprint is a good place to begin. It's complimentary, and it's built to help you get clear on your celebration and your guests before you sign anything.
Frequently asked questions
What is a hotel attrition clause for a wedding?
An attrition clause is part of a contracted room block. It sets the percentage of your reserved rooms you're responsible for filling, most often 80 percent for weddings. If your guests book fewer rooms than that, you owe the hotel for the shortfall, usually at the contracted rate, for each night. It's the main financial risk in a room block, and the main reason to have the contract structured carefully.
What's the difference between a courtesy block and a contracted block?
A courtesy block holds rooms with no financial obligation, but the rooms aren't guaranteed and it's usually limited to 10 to 25 rooms a night (many luxury resorts don't offer one at all). A contracted block guarantees the rooms and locks the rate, but you sign an attrition clause committing you to fill most of it. Courtesy blocks offer flexibility. Contracted blocks offer certainty.
How many rooms should I block for a destination wedding?
Industry surveys suggest somewhere between half and two-thirds of invited guests attend a destination wedding, which is lower than a hometown wedding. But you know your own guests better than any average, so the right block reflects who genuinely tends to show up, adjusted for the cost and distance of this trip. Sizing it accurately is what keeps you from committing to rooms that won't fill.
What's a resort buyout, and is it worth it?
A buyout means reserving an entire property for your wedding, so you and your guests have the whole place with no other travelers. Mechanically, it's a room block scaled to the full hotel. It's worth it when your guest count matches the property's size, which is why boutique hotels and private islands, rather than large resorts, are where buyouts usually make sense.
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