Inventory management for Shopify curtain and window treatment stores

The inventory problems curtain and window treatment stores run into

• Huge variant counts. a single curtain style can have 6 colors x 4 widths x 3 drop lengths, meaning one design turns into 50+ SKUs to track separately.
• Made-to-measure vs stock sizes. some lines are cut to order from roll stock, so what you reorder is fabric and hardware, not finished curtains, which changes what "inventory" even means per SKU.
• Hardware and accessories tail. rods, rings, tiebacks, and brackets sell alongside panels but move at different rates and come from different suppliers, so they need their own reorder logic.
• Discontinued dye lots and pattern runs. fabric suppliers sometimes retire a colorway with no notice, so a SKU can go from reorderable to dead stock overnight.
• Bulky, low-turn inventory. curtain panels take up shelf and storage space, so overordering ties up cash and room in a way that smaller products do not.

Seasonality and demand

Demand usually picks up in spring and early autumn as people redecorate, and again around big home sale events and the run-up to winter when buyers want heavier curtains for insulation. Blackout curtains and thermal linings often spike when seasons turn colder or during heatwaves for light-blocking bedroom use. Outdoor and sheer styles tend to peak in late spring and summer. Because fabric reorders can take a while to arrive, plan ahead of these windows rather than reacting once sales climb, and use your sales history per variant, not just per style, since one colorway can run ahead of others.

Suppliers, lead times and minimums

Suppliers are usually fabric mills or textile wholesalers, curtain manufacturers who cut and sew to spec, and separate hardware suppliers for rods and fittings. Domestic suppliers often turn around orders in a week or two, while overseas fabric mills often take several weeks, especially for custom colors or pattern runs. MOQs are common and are often set in meters of fabric or case packs of finished panels per color and size, so small reorders may need rounding up to hit the minimum.

Worked example

Suppose your "Linen Blackout Panel, Grey, 52x84" variant sells 2 units a day on average. Your supplier's lead time is 14 days and you keep 5 safety days, so your reorder point is 2 x (14 + 5) = 38 units. You currently have 10 on hand and 0 on order, and you want 20 days of cover after the order arrives. Order quantity = 2 x (14 + 20) - (10 + 0) = 68 - 10 = 58 units. If the supplier's case pack is 12 panels, SteadyShelf rounds that up to 60 units before drafting the purchase order.

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 curtain variant separately in Shopify, by color, width, and drop length, not just by style name.
2. Set a lead time and case pack size for each supplier, including separate entries for fabric mills and hardware suppliers.
3. Set safety days higher for overseas fabric suppliers and lower for local manufacturers with faster turnaround.
4. Review discontinued colorways regularly and remove them from active reorder tracking before they cause bad suggestions.
5. Approve draft purchase orders before big seasonal windows like autumn and spring redecorating periods.
6. Record partial deliveries as they arrive so remaining on-order quantities stay accurate.

How SteadyShelf fits curtain and window treatment stores

SteadyShelf forecasts demand per variant, flags the order-by date for each SKU based on your supplier's lead time, and rounds suggested quantities to your fabric or hardware case packs before turning them into a purchase order you approve and send. It does not track dye lot or batch expiry, so if a fabric colorway gets discontinued or reprinted in a slightly different run, you need to catch that yourself and pause reordering on that SKU. It also does not handle transfers between multiple store locations or warehouses, so multi-location stock movement is still a manual job.

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

SteadyShelf is launching on the Shopify App Store. Join early access to get the install link first.

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

FAQ