You thought you bought enough material.
The project is almost finished.
Only one small area is left.
You spread the last shovel.
Then you look at the pile.
There's nothing left.
You walk around the project.
It isn't finished.
You thought you had enough.
Instead, you've run out.
So why are you short?
The answer is usually simple.
Your project needed more material than you actually received.
That's why the material ran out before the project was finished.
Now you need about one more cubic yard to complete the project.
That doesn't sound like much.
But now comes the real question.
What did running short actually cost?
Let's use some easy numbers.
Suppose one more cubic yard costs $40.
That's the first cost.
If you are picking up the material yourself, you have to stop, go back to the supplier, buy more material, get loaded, and return.
If your material was delivered, you have to order another delivery and wait for the next available delivery opening.
Either way, getting that additional material usually costs more than simply buying one more cubic yard.
Now let's keep adding.
If you make another trip, suppose you spend another $10 on fuel.
Now you're at $50.
You also spend another hour getting the material instead of finishing the project.
Maybe you lose part of your day.
Now the cost is more than just the extra material.
There may be more.
Maybe someone helping you has to wait.
Maybe you keep a rented or borrowed trailer longer.
Maybe rain arrives before you can finish.
Maybe you wait another day, or several days, for the additional delivery.
Each one adds another cost.
None of them bought you more material.
They were simply the cost of running short.
Now think back to where this story began.
You thought you bought enough material.
When the material ran out, it felt like all you needed was one more cubic yard.
But the math told a different story.
It wasn't just another cubic yard.
It was another trip or another delivery.
More fuel.
More time.
More waiting.
A project that took longer to finish.
Those were the real costs of running short.
The next time you plan a project, remember this story.
Getting the right amount of material from the beginning often costs less than running short and having to buy more later.