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A hotel block for a wedding is a set of rooms a hotel reserves for your guests at a negotiated rate, held under your names until a cutoff date, usually about 30 days before the wedding. At The Box House Hotel at 77 Box Street in Greenpoint, Brooklyn, room blocks come built into the wedding itself, because the venue is a 10,000-square-foot retractable-roof rooftop directly on top of the hotel. Guests book with a group code, sleep two floors below the reception, and nobody calls a car at midnight.
Most couples set up a room block backwards. They book the venue, mail the invitations, and only then start calling hotels, at which point the good rates and the good dates are gone. This guide covers the whole process in order: what a block is, how it works, how many rooms to reserve, the courtesy-versus-contracted decision that determines whether you owe money for empty rooms, and the etiquette of telling your guests about it. We run wedding room blocks year-round at The Box House Hotel, so the examples below come from real group bookings, not theory.
A wedding room block is a group reservation: the hotel pulls a set of rooms out of general inventory and holds them for your guest list at a fixed group rate. Guests book individually, by code or booking link, and each guest pays for their own room. You are the organizer, not the payer, in most arrangements.
Blocks solve three problems at once. Guests get a rate that will not spike when a marathon or a conference lands on your weekend. You get your people concentrated in one building instead of scattered across three neighborhoods. And the hotel gets predictable occupancy, which is why it discounts in the first place.
The details vary by property. Some hotels require a 10-room minimum to open a block. Some hold the block for 6 to 12 months, others for 90 days. Ask early, because the answers shape everything downstream.
The mechanics run in five steps, and the timeline matters more than couples expect.
At The Box House Hotel the block conversation happens inside the wedding planning process itself, since all-inclusive weddings on the rooftop include guest room blocks as a standard line item alongside catering and day-of coordination. One team handles the ceremony floor plan and the room list.
The working rule: expect 60 to 70 percent of out-of-town guests to book inside your block, and figure roughly one room per two guests. So a 150-person wedding with 80 out-of-towners typically needs 25 to 30 rooms across the weekend, most of them for the Saturday night, with a smaller count on Friday.
Adjust for your actual list. A wedding where both families are local might need 10 rooms; a wedding where everyone flies in might need 50. Count the guests you are certain will travel, halve that number for rooms, then round up slightly. It is easier to add rooms to a healthy block than to negotiate down an oversized one.
One structural note: a single hotel rarely fits every budget. Box House works around this with partner properties, The Box House Hotel, Henry Norman Hotel, and Franklin Guesthouse, all in Greenpoint, so a large guest list can split across three buildings within walking distance of the rooftop. Room types at Box House itself run from 250-square-foot queen rooms to one- and two-bedroom loft apartments that sleep six, which matters for families who would otherwise book two rooms.
This is the single most consequential decision in the process, and it comes down to risk.
A courtesy block holds rooms with no financial obligation. If your guests book 4 of the 10 rooms, the other 6 quietly return to inventory and you owe nothing. The trade-off: courtesy blocks are usually capped (often 10 rooms), the discount is smaller, and the hotel can be less flexible on adding rooms late.
A contracted block commits you to a percentage of the rooms, enforced through an attrition clause. A typical clause requires 80 percent pickup; reserve 30 rooms, and if guests book only 20, you pay for the 4-room shortfall. In exchange you get more rooms held, a better rate, and stronger guarantees on room types.
The honest guidance: take a courtesy block if one is offered and your count is uncertain. Take a contracted block only when you are confident in your numbers, and negotiate the attrition percentage down before you sign. Also ask what happens to unsold rooms at cutoff, whether the rate extends a night on either side of the wedding, and whether comp rooms kick in at a certain pickup level.
The block goes on the wedding website and the invitation insert, not in a group text. List the hotel name, the group rate exists (you do not need to print the number), the booking code or link, and the cutoff date. Phrase it as a convenience, because it is one: "We've reserved a block of rooms at The Box House Hotel, steps from the venue. Book by [date] with code [code]."
You are not obligated to pay for anyone's room. Couples sometimes cover rooms for immediate family or the wedding party; that is generous, not required, and it is handled directly with the hotel, invisibly to everyone else.
Do not book a block at a hotel far from the venue to chase a lower rate. Guests will price the two cab rides against the savings and book elsewhere anyway. Proximity is the whole point, and a hotel where the reception is an elevator ride away is the strongest version of it.
How far in advance should I set up a wedding room block?
Nine to twelve months before the wedding is the safe window, and earlier for peak fall Saturdays in New York. The block should be live before your save-the-dates go out, so guests can book travel the day they learn the date.
Do wedding guests pay for their own rooms in a block?
Yes, in the standard arrangement. The couple reserves the block and guests book and pay individually at the group rate. Couples who want to cover specific rooms, for parents or the wedding party, arrange that separately with the hotel.
What happens if guests don't book all the rooms in the block?
In a courtesy block, unbooked rooms release back to the hotel at the cutoff date and you owe nothing. In a contracted block, an attrition clause applies: if pickup falls below the agreed percentage, commonly 80 percent, you pay for the shortfall. Always confirm which type you are signing.
Can wedding guests book after the room block cutoff date?
Usually yes, but at the hotel's current public rate and subject to availability, and on a busy weekend that can mean paying double or finding the hotel sold out. Put the cutoff date everywhere you mention the block.
Is a hotel block worth it for a small wedding?
Yes, if even 10 to 15 guests are traveling. A courtesy block costs nothing to set up, keeps your people in one place, and protects them from rate spikes. For small weddings at Box House, apartments that sleep six can consolidate whole families into single bookings.
A rooftop that holds 400 under a retractable roof, with loft rooms, suites, and apartments directly below it. Talk dates and room lists with the events team.
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