Dormitories: grouping rooms by size before requesting a quote

Key takeaways

• Treating every room as identical, or quoting one by one, both slow down a dormitory-scale request.
• Grouping by floor area and occupancy first produces a handful of clear categories.
• Groups can be used to request a phased quote covering priority blocks first.
• Comparing suppliers by group specification is easier than comparing one flat total.
• A facility-wide survey confirms the groupings before the final order is placed.

Why treating every room as identical slows down quoting

A dormitory operator requesting a quote often defaults to one of two approaches: assume every room is roughly the same and ask for a single per-room price, or list every room individually and expect a supplier to work through them one at a time. Neither speeds things up.

Treating rooms as identical produces a quote that doesn't reflect reality, since bunk rooms, shared rooms and communal spaces genuinely differ in floor area and occupancy. Listing every room individually is accurate but slow, and it asks the supplier to do sorting work that the operator is better placed to do themselves, since they already know the building.

The middle path, grouping rooms into a small number of categories before requesting a quote, gives suppliers something specific enough to price accurately and simple enough to turn around quickly.

This also puts the operator in a stronger position when comparing quotes later, since a request built around clear groups is harder for a supplier to answer with a vague, uncommitted estimate than a single all-in figure would be.

Grouping rooms by floor area and occupancy first

Most dormitories have a handful of genuinely distinct room types once you look past minor variation: a standard shared room, perhaps a smaller single-occupancy room, and separate communal or common areas. Grouping starts by sorting rooms into these categories based on floor area and how many occupants each is designed for.

This doesn't need to be exact on the first pass. A reasonable grouping based on the building's own floor plans or room schedules gives a workable starting point, which a proper survey can then confirm or adjust. The goal at this stage is reducing two hundred rooms to perhaps four or five categories, not achieving perfect precision.

Ceiling height matters too, particularly if some blocks were built to a different specification than others. Note it alongside floor area for each group, since it directly affects the CADR calculation each category will need.

Using groups to request a phased quote from suppliers

Once rooms are grouped, a supplier can quote each category rather than every individual room, which is both faster to produce and easier to review. It also naturally supports phasing, since groups can be prioritised, starting with the highest-occupancy rooms or a particular block, without needing to redo the whole exercise later.

A phased quote structured this way is easier to present internally too. Management reviewing a request broken into clear groups with defined scope per phase has an easier time approving it in stages than reviewing one large undifferentiated total.

See our size calculator for a first pass at the CADR requirement for each group before a full survey confirms the numbers.

Comparing per-group specification instead of one flat number

Grouped quotes also make comparing suppliers more meaningful. A single flat total per room hides a lot: one supplier might be sizing generously for a large room type and thinly for a small one, while another does the opposite, and a flat average masks both.

Reviewing quotes group by group shows whether a supplier's proposed product and coverage actually matches each room category, or whether they've applied one product across everything regardless of fit. A standard shared room and a larger communal area rarely need the same specification, and a quote that treats them identically is worth questioning.

This level of detail also carries through into servicing later, since group-based specifications make it easier to plan visits by room type rather than tracking every unit as a one-off.

Confirming groupings with a facility-wide survey

Grouping rooms from floor plans and general knowledge of the building is a good starting point, but it's worth confirming with an actual survey before finalising an order. Floor plans don't always match built reality, and occupancy patterns can shift as the dormitory fills or turns over residents.

A free room-by-room Air Report measures the actual spaces and can confirm whether the initial groupings hold up, or whether a category needs splitting into two. This step catches sizing mismatches before an order is placed rather than after units have already arrived.

Once confirmed, the groupings and survey results together give a dormitory operator a clear basis for a phased purchase or a scaled rental agreement, either of which is easier to manage than a decision made room by room from the start. Keeping the confirmed groupings on file also makes the next round of quoting faster, whether that's expanding coverage later or comparing a new supplier against the existing plan.

Next step

Grouping rooms first makes a dormitory-scale quote faster and easier to compare. Use the Air Purifier Size Calculator to start, then confirm the groupings with a full survey.

Frequently asked

Why does treating every dormitory room as identical slow down quoting?

A flat per-room estimate doesn't reflect real differences in floor area and occupancy between room types, while listing every room individually is accurate but slow. Grouping rooms into a handful of categories first gives suppliers something specific enough to price quickly and accurately.

How should rooms be grouped before requesting a quote?

Sort rooms by floor area, occupancy and ceiling height into a small number of distinct categories, such as a standard shared room, a smaller single room and communal areas, using the building's existing floor plans as a starting point.

Can a phased quote be based on room groupings?

Yes, once rooms are grouped, a supplier can quote each category and phase the rollout by priority, such as the highest-occupancy rooms first, without needing to redo the sizing exercise for the whole building at once.

Related reading

• Commercial Air Purifier Rental in Singapore