The Reorder Window: Why 6 Weeks Is the Make-or-Break Moment for Pet Stores

What the Reorder Window Is

Every repeat purchase product has a natural consumption cycle. For premium dry dog food, that cycle is roughly six weeks. A 30-pound bag of Orijen, Acana, or similar premium brand lasts about 42 days for a medium-sized dog eating the recommended daily amount.

The reorder window is the gap between when a customer's product should run out and when they actually make their next purchase. In a perfect world, the customer walks back into your store right on schedule. In reality, that window is where customers are most vulnerable to switching.

Understanding this window is not academic. It is the single most important concept for any pet store owner who wants to hold onto their repeat revenue.

Why 6 Weeks Matters for Dog Food

The six-week mark is not arbitrary. It is dictated by how quickly dogs go through food. A medium dog eating two cups per day will consume a 30-pound bag in roughly 40 to 45 days. Larger dogs go through it faster. Smaller dogs stretch it to eight weeks. But six weeks is the center of the bell curve for the most common purchase pattern in independent pet stores.

This means that every six weeks, each of your food customers faces a decision point. Do they drive to your store, or do they open their phone and reorder online? Every single cycle, they make that choice. And you probably have no idea when those decision points are happening for each customer.

The Timeline of Customer Loss

Here is what happens at each stage of the reorder window, and why the clock is ticking faster than you think.

The Compounding Effect

Here is the part that makes this truly costly: the probability of recovery drops with each passing week. A customer who is one week overdue has roughly an 80 percent chance of coming back with a well-timed nudge. A customer who is four weeks overdue drops to about 50 percent. By the time they have been gone for 12 weeks, you are looking at a 15 to 20 percent recovery rate at best.

This compounding effect means that every week you wait to reach out, the cost of inaction grows. It is not just the revenue from that one missed purchase. It is the lifetime value of a customer who was buying from you month after month, year after year, quietly channeled into someone else's revenue stream.

Why Chewy Wins During This Window

Chewy does not wait for the customer to make a decision. Their entire business model is built around removing the decision from the equation. Auto-ship means the customer does not have to remember, does not have to drive, does not have to compare prices. The food just arrives.

While you are waiting for the customer to come back, Chewy is actively marketing to them with free delivery, first-order discounts, and auto-ship savings. They are filling the void that you do not even know exists. By the time you realize the customer is gone, Chewy has already won them over with convenience.

What Proactive Stores Do Differently

The stores that hold onto their repeat customers are not doing anything dramatic. They are simply paying attention to timing. They know when each customer's product should run out, and they reach out before the customer starts looking elsewhere.

A simple reminder at week five or six — before the bag runs out — keeps your store top of mind at the exact moment the customer is making their reorder decision. Add a small incentive to make the trip worthwhile, and you have dramatically increased the odds of keeping that customer in your store instead of on someone else's website.

The key is not the message. It is the timing. A generic promotional email in January does nothing. A personalized reminder that arrives the same week the customer's food is running low changes everything.