By Iwona Stoch, Founder & Strategic Lead, Stoch Hotel Consulting
OS&E (operating supplies and equipment) par levels set how many complete sets of an item — bed linen and towels above all — a hotel keeps in circulation to cover what’s in a guest room, in the wash and in storage. For hotel linen, three pars is the accepted minimum; five is the comfortable standard, set by the laundry contract.
Pre-opening OS&E procurement gets a lot of attention because it’s a single, visible purchase order before a hotel ever takes a guest. Replenishment doesn’t get the same attention, even though it’s the budget line that runs for the life of the property. Set the par level too low and housekeeping runs out of clean sheets on a busy Saturday. Set it too high and the hotel is carrying working capital in a linen closet instead of the business. Getting it right is a smaller decision made correctly, over and over, for years.
What is a par level, and why does OS&E need one?
OS&E (operating supplies and equipment) covers everything a hotel consumes or replaces in daily operation — linen, towels, glassware, uniforms, small guest-room items — as distinct from FF&E (furniture, fixtures and equipment), the fixed assets a hotel doesn’t rotate through daily. That’s the split between FF&E and OS&E scopes in practice, not just in a budget spreadsheet.
A par level is how a hotel sizes the OS&E it needs to keep that daily rotation running without a gap: one set on the bed or table, one set in the wash or in transit to the laundry, and one or more sets held in storage to absorb the time it takes for the first set to come back clean. The number of sets required to cover that full cycle, per room or per cover, is the par level.
How many pars of hotel linen do you actually need?
According to Iwona Stoch, founder of Stoch Hotel Consulting: “For bedding and towels, it depends on the contract with the laundry — how often they deliver clean linen back, and whether they work weekends. Three pars is the standard minimum, and five pars is a comfortable amount for a hotel to hold.”
That range lines up with what the wider hospitality-operations literature treats as baseline. Xenia’s hotel laundry management guide puts the industry baseline at 3 PAR — one set on the bed, one in the wash, one on the shelf — and notes that “luxury and high-occupancy properties run 4 to 5 PAR,” with an extra par added on top of that for hotels using off-site laundry, to cover linen sitting in transit.1 A separate housekeeping-operations guide from Hospitality.Institute frames the same problem as a formula rather than a fixed number of sets — par stock as average daily usage multiplied by lead time, plus a safety-stock buffer — and makes the same point in different words: hotels running an on-site laundry can carry a lower linen par than those relying on an outsourced service.2
What actually pushes a hotel from three pars to five?
The laundry contract is the variable that does the most work here, and it’s worth naming its parts separately rather than treating “the laundry” as one fact.
| OS&E category | Typical par convention | What pushes it higher |
|---|---|---|
| Bed linen — on-site (in-house) laundry | 3 pars (industry baseline) | Same-day, in-house turnaround keeps one set on the bed, one in the wash and one on the shelf sufficient |
| Bed linen — outsourced, off-site laundry | 4–5 pars | A 24-hour standard turnaround (or longer without weekend collection) means more sets are in transit at any one time |
| Bath towels | 3–5 pars, higher at luxury or high-occupancy properties | Heavier daily usage per guest than bed linen, plus a higher damage-and-loss rate |
| Pool and fitness towels | Run higher than the room-linen par | Loss to theft is heavier in shared, less-supervised areas than in guest rooms1 |
| Mattress protectors, pillows | Lower — around 1.25 pars1 | Replaced far less often, but still need a rotation buffer for laundering |
| Glassware, porcelain and small guest-room OS&E | Sized as a reserve, not a rotation par | Breakage and disappearance, not laundry turnaround, drive the number (see below) |
Turnaround time is the mechanism behind most of that table. A standard laundry cycle from soiled linen back to a usable shelf item runs around 24 hours, with express service available at a premium for a 3-to-6-hour turnaround.1 Every hour added to that cycle — a weekend where the laundry doesn’t collect, a contractor running behind — is an hour a hotel needs covered by an extra par sitting in storage instead of by a faster delivery. Pillows and mattress protectors follow the same rotation logic at a lower par, a detail that sits alongside how hotel mattress and bedding procurement drives sleep-quality reviews — the bedding itself and the linen that covers it are sized by two different, but related, logics.
Does the same par-level logic apply beyond linen?
Not directly. A par level assumes routine rotation — the item comes back. A reserve assumes some of the stock won’t come back at all, and that’s a different budget line with a different driver.
According to Iwona Stoch: “With OS&E, you need a reserve above all for glass and other easily breakable products — porcelain, for instance — and for items that regularly go missing from rooms, like teaspoons and bottle openers. Room items disappear far more often than people expect.”
Glassware and porcelain don’t have a laundry cycle to size against; they have a breakage rate. Teaspoons and bottle openers don’t come back from a wash at all — they leave the property in a guest’s luggage and never return. Both need a standing reserve ordered ahead of need, sized against the property’s own loss history rather than against a laundry turnaround clock. Treating that reserve as if it were just another par level — sized the same way as bed linen — usually means either running short mid-month or over-ordering against a number that was never the right model in the first place.
How does ongoing par-level management differ from pre-opening OS&E procurement?
Pre-opening OS&E procurement sets a par level from a plan — projected occupancy, brand standard, room count — because there’s no consumption history yet to measure against. Once a hotel is trading, that plan should get replaced by real data: actual laundry turnaround, actual breakage and loss rates, actual weekend and peak-occupancy patterns. A par level fixed at the pre-opening number and never revisited is one of the more common quiet mismatches between the OS&E budget and how the hotel actually runs, and it connects directly to how OS&E procurement is scoped for opening day — the same category of spend, sized once from a plan and then, if nobody checks back, never adjusted to what actually happens.
Frequently asked questions
Is three pars enough for every hotel?
Three pars is the accepted minimum, and it works best where the laundry is on-site or fast-turnaround and there’s no gap in weekend collection. Outsourced laundry, luxury positioning, or high occupancy typically pushes the requirement to four or five pars.
What’s the difference between a par level and an OS&E reserve?
A par level covers items that rotate — they go out, get used or washed, and come back. A reserve covers items that are consumed permanently, through breakage (glassware, porcelain) or disappearance (small guest-room items). They’re sized against different data and shouldn’t be budgeted as the same line.
Does weekend laundry service actually change the par level?
Yes. If a laundry contract doesn’t include weekend collection, the effective turnaround time for linen sent out on a Friday can stretch well past the standard 24-hour cycle, and the par level needs to be sized against that longer gap, not the weekday average.
Should a hotel set its par level once and leave it?
No. A par level set before opening is a planning estimate. Once the hotel has real occupancy, laundry-turnaround and loss data, the par level should be recalculated against that experience rather than left at the pre-opening figure.
Do glassware and porcelain need a par level too?
They need a reserve rather than a par level in the strict sense, because they don’t return from a laundry cycle — they’re replaced when broken. The reserve should be sized against the property’s own breakage history, not against a rotation formula built for linen.
Iwona Stoch is the founder and strategic lead of Stoch Hotel Consulting, an independent FF&E and OS&E procurement consultancy based in Kraków, working with luxury and upscale hotels across Europe since 2011.
Last updated: September 2026.
Reviewing how your hotel’s OS&E par levels and reserves are actually set? Stoch Hotel Consulting’s independent FF&E and OS&E procurement consulting works with operating hotels on replenishment planning alongside related questions like where the FF&E and OS&E scopes split and how OS&E procurement is scoped for opening day. Get in touch to talk through your property’s replenishment planning.
Sources: 1 Xenia, “Hotel Laundry Management: A Multi-Property Operations Guide,” updated 6 Jun 2026. 2 Hospitality.Institute, “Mastering Par Stock Levels and Stock Taking in Hotel Housekeeping Operations,” 15 Mar 2024.
