Stocking a Studio: How Many Blocks, Straps, and Bolsters Per Class

Running short on blocks five minutes into a class is a small problem with an outsized impact on how the session feels. Overstocking, on the other hand, wastes storage space and budget on props that sit unused. Getting the count right starts with recognizing that different class styles genuinely need different quantities of gear — a stocking plan built for a vinyasa class will leave a restorative class short.

Why class style changes the numbers so much

Restorative and yin classes hold shapes for extended periods and lean on props for support throughout — a block under the hips, a bolster under the knees, a blanket for warmth during long holds. Gentle and hatha classes use props more selectively, often just for a handful of poses in a session. Vinyasa and power-flow classes move continuously and typically reach for floor props only occasionally, if at all. Stocking every class style identically means either shortchanging the slower classes or drowning the storage room in gear a fast-moving class never touches.

A working ratio table

These per-student ratios reflect common studio-stocking conventions, rounded up since props come in whole units:

Class style	Blocks	Straps	Bolsters	Blankets
Restorative	2 per student	1 per student	1 per 2 students	1 per student
Yin	2 per student	1 per student	1 per 2 students	1 per student
Gentle / hatha	1 per student	1 per 2 students	1 per 4 students	1 per 2 students
Vinyasa / power	1 per 2 students	1 per 4 students	Rarely stocked	Rarely stocked

An 8-student restorative class, for example, works out to roughly 16 blocks, 8 straps, 4 bolsters, and 8 blankets — a substantial prop cart, but one that matches how heavily that class style actually uses the gear.

Mats need a different kind of buffer

Unlike blocks and straps, mat quantity isn't a fraction of the headcount — it's the headcount plus spares. A studio mat gets used, cleaned, and occasionally sits out to dry or gets damaged, so stocking exactly one mat per registered student leaves zero room for a walk-in, a mat mid-cleaning, or a torn one waiting to be replaced. A spares buffer of about 10% of headcount, with a floor of at least two spares even for small classes, is a reasonable cushion without over-buying.

Rounding up, always

Ratios like "1 bolster per 4 students" or "0.5 blocks per student" don't divide evenly against every class size, and a studio can't stock half a bolster. Every prop count should round up to the next whole unit rather than down — a class of 5 students at a 1-per-4 bolster ratio needs 2 bolsters, not 1, since rounding down would leave the room short exactly when it's needed.

Comparing class sizes side by side, style by style

Seeing the same class style scale across different headcounts makes the ratio logic concrete in a way a single example doesn't. A 3-student restorative session — small enough to feel like a private lesson — needs 5 mats, 6 blocks, 3 straps, 2 bolsters, and 3 blankets. Scale that same restorative style up to a full 20-student class, and the numbers become 22 mats, 40 blocks, 20 straps, 10 bolsters, and 20 blankets — everything scales roughly linearly with headcount, except mats, whose spares buffer grows a little more slowly in percentage terms as the class gets bigger (a floor of 2 spares matters proportionally more for a 3-student class than a 20-student one).

Now hold the headcount fixed at 5 students and change only the style. A yin class of 5 needs 10 blocks, 5 straps, 3 bolsters, and 5 blankets — noticeably more than a gentle class of the same size, which needs just 5 blocks, 3 straps, 2 bolsters, and 3 blankets. The difference isn't headcount at all here; it's entirely down to how much each style leans on floor props, which is exactly why a single "one-size-fits-all" prop count for a shared room tends to either overbuy for the lighter classes or underbuy for the heavier ones.

Building a stocking plan across multiple class types

Most studios run several class styles through the same room over a week, which means the practical stocking number for shared storage is the highest of what any regularly scheduled class style needs, not an average across all of them. If a room hosts both a 12-person restorative class and a 12-person vinyasa class on different days, the storage plan needs to cover the restorative class's higher prop count even though the vinyasa class barely touches most of it.

Budgeting for replacement, not just initial stock

Props wear out at different rates depending on how they're used, and a stocking plan that only accounts for the first purchase will quietly fall short of its own ratios within a year or two. Straps and blankets see the most fabric wear from repeated washing and stretching. Foam blocks compress and can develop soft spots at their most-used corners faster than cork blocks, which hold their shape longer under the same use but cost more up front. A simple, workable habit is a periodic prop count against the ratio table itself — if a restorative room's actual bolster count has drifted below what a 2-per-2-students ratio calls for at current enrollment, that's the signal to reorder before a class is visibly short, rather than waiting for a student to notice first.

Storage space scales alongside the prop count

A stocking plan sized correctly for class demand still needs somewhere to live between sessions, and that storage footprint grows with the same numbers as the props themselves. Budgeting roughly 2 square feet of storage per enrolled practitioner, on top of the floor space each class style needs, keeps a fully stocked restorative room's gear from ending up piled in the walking path once the true prop counts — not a rough guess — are actually on the shelf.

Labeling and organizing a shared prop room

Getting the count right solves half the stocking problem; the other half is making sure the right props are easy to find and put back between back-to-back classes with a short turnover window. Grouping props by class style rather than by prop type — a labeled restorative shelf with its blocks, bolsters, and blankets together, separate from a lighter vinyasa shelf with just its smaller block and strap count — makes a fast changeover easier than a single mixed shelf where every prop type is stacked together regardless of which class actually needs it. This kind of organization also makes it much faster to notice when a specific style's shelf is running low, since a partially empty labeled shelf is a more obvious visual signal than a single large prop count spread across the whole room.

Adjusting stock across multiple rooms

A studio running more than one room at once has to decide whether each room keeps its own dedicated prop stock or shares a central supply, and the right answer usually depends on how similar the rooms' typical class styles are. Two rooms that both mostly run gentle and vinyasa classes can often share a central prop stock without much friction, since neither draws heavily on bolsters or blankets. A studio with one dedicated restorative room and one dedicated vinyasa room benefits more from keeping stock separate and sized to each room's own style, since a shared pool sized for the lighter vinyasa demand would leave the restorative room chronically short, while a shared pool sized for the heavier restorative demand would mean the vinyasa room stores far more than it uses.

Where to physically position each style's shelf

Beyond labeling, the physical layout of a shared prop room can shave real time off a tight turnover window. Placing the heaviest-demand style's shelf — often restorative or yin, given how much gear those styles use per student — closest to the door a teacher actually enters through saves meaningful steps across dozens of turnovers a week, compared to a layout where the highest-volume shelf happens to sit furthest from the entrance simply because that's where it was first set up.

Seasonal and enrollment swings

Class sizes fluctuate over the course of a year, and a prop stock sized for a studio's typical headcount can fall short during a seasonal enrollment bump without anyone deciding to under-stock on purpose. It's worth periodically re-running the ratio math against actual current enrollment numbers rather than a stocking plan set once when the room first opened, since a restorative class that grew from 8 to 14 regular students needs meaningfully more of every prop — roughly 28 blocks instead of 16, 14 straps instead of 8 — and a stock level that quietly stayed fixed at the original headcount will start running short exactly during the studio's busiest stretch.

Stocking a brand-new room before real attendance data exists

Opening a new room or a new class style comes with a chicken-and-egg problem: the ratio math needs a headcount to work from, but a brand-new offering has no attendance history yet to base that headcount on. A reasonable approach is stocking for the room's realistic capacity — the number the space-planning math says the room can comfortably hold at your chosen comfort level — rather than guessing at expected enrollment, since capacity is a known, calculable number while early demand is not. It's a safer initial over-estimate than an under-estimate: a partially full prop shelf in the first few months is a minor inefficiency, while running short on props in front of a class that's larger than expected is a visible, first-impression problem. Once a few months of real enrollment data exist, the stock can be right-sized down to actual demand rather than theoretical capacity.

To skip the table lookup for a specific class, the prop quantity calculator takes your student count and class style and returns the full prop breakdown, spares included.