A large exhibition needs more than a show floor. It needs enough hotel rooms for thousands of delegates, exhibitors and speakers staying throughout the event. This hotel contract is usually taken less seriously than the exhibition venue contract, even though the financial risk that comes with it is not small.

What a room block is

A room block is the number of hotel rooms reserved and held for an event, usually spread across several hotels near the exhibition venue. The organizer negotiates the room block with hotels very early, sometimes a full year before the event, to make sure delegates have enough rooms at the agreed rate instead of competing with individual guests in peak season.

What an attrition fee is

An attrition fee is a penalty the hotel charges when the rooms actually booked fall below a minimum percentage of the committed room block. In other words, it compensates for the hotel revenue that was expected but not achieved, since the rooms were held for the event instead of being sold to other guests.

The minimum percentage common in hotel contracts for international exhibitions is usually around 85%. If the rooms booked by the cut-off date reach 85% or more of the room block, the organizer doesn't pay an attrition fee. If lower, the penalty is calculated on the shortfall below that 85% mark, not on the whole room block.

The cut-off date and the hotel's rights after it

The cut-off date is the day the hotel locks in the number of rooms booked to compare with the room block. It is an important milestone to negotiate clearly in the contract, because after this date the hotel has more flexibility with the unbooked rooms: it can set new rates for the leftover rooms, or sell them to other groups if the booking rate hasn't met the requirement. For large contracts, you can negotiate an extra clause: if the hotel wants to apply a new rate after the cut-off date, the organizer must approve it before the hotel confirms with another group.

Items to clarify in the contract

Besides the room block and attrition fee, a hotel contract for an exhibition usually has a few more clauses that cause disputes if not stated clearly from the start.

  • Type of room rate: a flat rate applied to all room categories except suites, or a rate by the actual room category assigned at check-in (run of house).
  • Room categories: single (one person, one bed), double/double (two people, two beds) and other variants, where the share of each category in the room block must be agreed clearly.
  • Resort fee: a separate surcharge on top of the room rate, common in some tourist cities, with every item counted in this fee needing to be listed in full.
  • Force majeure clause: states both sides' rights if the event date must be moved for objective reasons, and how the committed room block is handled in that case.

Why you shouldn't skip this clause

For an event with hundreds or thousands of delegates staying, a gap of a few percentage points in the booking rate can bring an attrition fee of tens of thousands of dollars.

Who should negotiate this clause

For small and mid-size exhibitions, organizers sometimes let the operations or accounting department negotiate the hotel contract at the same time as other service contracts, instead of having a dedicated person who understands how room blocks and attrition fees work. That approach easily misses unfavorable clauses, because hotel negotiation requires understanding both seasonal booking patterns and how hotels calculate expected revenue per empty room. For events large enough, a dedicated person should handle the hotel contract, working in parallel with the team handling the exhibition venue contract, instead of lumping everything onto one person processing all the paperwork.

Negotiate the room block and attrition fee carefully from the start. That is worth more than finding the lowest room rate on paper.