Inventory by store type

Inventory management for Shopify lab supply stores

Lab supply stores sell gloves, pipette tips, reagents, glassware, and safety gear in a messy mix of sizes, grades, and pack counts. Running out of one tip size or one reagent lot can stall a customer's whole experiment, so reorder timing matters more than it looks.

The inventory problems lab supply stores run into

  • Variant sprawl. a single pipette tip product can have a dozen variants by volume range and sterility (filtered or not), each selling at a different pace.
  • Mixed supplier types. you may buy gloves and plasticware from a distributor, reagents from a manufacturer, and specialty glassware from a small importer, each with different lead times and case pack rules.
  • Cold chain and shelf life. some reagents and buffers need refrigeration or have expiry dates, and ordering too far ahead wastes money if stock expires before it sells.
  • Backorders from manufacturers. some reagents and calibration standards run on allocation or long manufacturer backorders, so a normal reorder point can still leave you short.
  • Case pack mismatches. gloves and tips often ship in case packs of 10 or 20 boxes, so rounding up slightly can tie up more cash than a small store wants.

Seasonality and demand

Lab supply demand usually tracks the academic calendar. Expect a surge in late summer and early fall as university and college labs restock for the new term, and a smaller bump before spring semester. Grant cycles and fiscal year-ends (often June 30 or December 31 for institutional buyers) can also trigger bulk orders with little warning. Summer months are typically slower for teaching labs but steady for industrial and QA/QC customers who buy year-round. Plan safety stock higher going into August through October, and review slow movers in mid-summer so you are not holding excess into a quiet stretch.

Suppliers, lead times and minimums

Lab supply stores typically order from three kinds of suppliers: large distributors (gloves, tips, tubes, general plasticware) with decent stock and case pack minimums, reagent and chemical manufacturers with longer and less predictable lead times, especially for cold-chain or hazardous items, and small specialty importers for glassware or instruments who may take several weeks to ship from overseas. Case packs and minimums vary widely, a box of gloves might ship in cases of 10, while a reagent kit might have a minimum order of 6 units simply because that is how it is boxed at the manufacturer.

Worked example

Say you sell nitrile exam gloves, size medium, averaging 4 boxes a day. Your distributor's lead time is 10 days and you keep 5 days of safety stock, so your reorder point is 4 x (10 + 5) = 60 boxes. You want 20 days of cover total, you currently have 30 boxes on hand and 0 on order, so order quantity is 4 x (10 + 20) - (30 + 0) = 90 boxes. The distributor sells gloves in cases of 10 boxes, so SteadyShelf would round that up to 90, which happens to land exactly on a case pack, no waste.

Try it with your own numbers in the reorder point calculator, or size your buffer with the safety stock calculator.

A simple system to start this week

  1. List every SKU with its supplier, lead time, and case pack size, including minimums.
  2. Flag any refrigerated or expiry-dated items separately and track their dates outside SteadyShelf.
  3. Set safety stock days higher for reagents prone to manufacturer backorders.
  4. Review slow-moving variants in early summer before the fall restock surge.
  5. Confirm each supplier's reorder contact and lead time are current before peak season.
  6. Check weekly reorder emails against actual lab calendars at your biggest institutional customers.

How SteadyShelf fits lab supply stores

SteadyShelf will forecast demand per glove size, tip volume, or reagent SKU, tell you when to reorder from each supplier, and round quantities to their case packs. It does not track lot numbers or expiry dates, so for refrigerated reagents or anything with a shelf life, you still need a separate log or spreadsheet to track what expires when. It also will not handle transfers between a warehouse and a retail counter if you run both.

$29/month flat, unlimited products and suppliers, 30-day free trial.

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More: inventory management by store type · inventory glossary · Stocky alternatives

FAQ

Does SteadyShelf track expiry dates on reagents or calibration standards?

No. SteadyShelf forecasts sales and reorder timing per SKU, but it does not do lot or batch tracking. Keep a separate log, even a simple spreadsheet, for expiry-dated items and check it before placing or receiving orders.

Can it handle different case pack sizes for gloves versus reagent kits on the same purchase order?

Yes. You set the case pack and minimum order quantity per SKU per supplier, and SteadyShelf rounds its suggested order quantities to match, so a glove order rounds to cases of 10 while a reagent kit rounds to its own minimum.

We run a warehouse and a storefront counter. Will SteadyShelf move stock between them?

No, SteadyShelf does not do multi-location transfers. It forecasts and reorders based on your Shopify inventory data, but moving stock between locations is something you still need to handle manually or with another tool.

Let SteadyShelf do this math for every SKU

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