Lean isn’t wrong—but it’s incomplete when the real world doesn’t cooperate.
Just-in-Time (JIT) was revolutionary in manufacturing. But for glass and ceramics distributors operating in a high-fragility, low-margin, schedule-critical environment, pure JIT can be dangerous. The goal—less inventory, more turns, higher efficiency—sounds great until a truck is delayed, a supplier goes offline, or a rush job lands out of sequence.
Too often, ops teams adopt JIT without context—and pay for it in emergency freight, lost clients, or eroded trust.
What JIT Gets Right—and Where It Goes Wrong
JIT Wins When:
Demand is predictable
Supply is stable
Products are standard (e.g., ⅛” clear float or ceramic tile stock)
JIT Fails When:
Products are fragile, custom, or install-dependent (e.g., fire-rated IGUs, kiln-cured ceramics)
Lead times are volatile
Forecasts shift faster than PO cycles
In these cases, a zero-inventory model is not lean—it’s brittle.
Hidden Costs of Poorly Applied JIT
Expedited freight to meet install deadlines
Production idle time due to missing ceramic components
Lost margin from failed partial shipments
Damaged relationships from missed site coordination
And these costs don’t show up in your ERP—they show up on the next contract you don’t win.
Smarter JIT: Contextual, Not Universal
Instead of pure JIT, apply a hybrid model:
Use JIT for high-turn, low-risk SKUs
Maintain buffer or forward-staged inventory for critical-path materials
Pre-load job-specific bundles for projects with tight install dates
JIT isn’t the goal—it’s a tool. The goal is reliable, profitable delivery.
Culture Shift: When JIT Becomes Dogma
Ask your ops team:
Are we overusing “JIT” to justify risky cuts?
What’s our cost of failure on key accounts?
Do we know where JIT helps vs. where it hurts?
If the answer is “we treat everything the same,” you’re not lean—you’re exposed.
