Key takeaways
- Under-specification gets fixed in a week because something fails. Over-specification survives for years because nothing does.
- Specifying new where used 2A would do costs about $54,000 a year at 400 boxes a month.
- Three questions find it: who sees the box, what does it actually weigh, and how many trips do you really get.
- Respect a conservative spec when somebody can articulate the reason. 'It has always been that spec' is not one.
Under-specify a box and you find out immediately: something fails, somebody complains, the spec gets changed. Over-specify and nothing happens at all, forever, except that you spend thirty per cent more than necessary every month for years.
This asymmetry is why over-specification is the most persistent form of waste in industrial packaging.
How it takes hold
- A spec is set during commissioning, conservatively and correctly, because nobody has operating history.
- The person who set it moves on. The reasoning does not get written down.
- The spec becomes a part number in a purchasing system, which is where specifications go to become permanent.
- Nobody revisits it, because it is not causing a problem. Causing no problem is precisely its defining characteristic.
What it costs
| Specified | Actually needed | Extra per box | Extra per year |
|---|---|---|---|
| New 5-wall | Used 2A 5-wall | $11.25 | $54,000 |
| Used 1A | Used 3A | $4.40 | $21,120 |
| Used 2A | Used 3A | $2.15 | $10,320 |
| 5-wall | 4-wall, for a 900 lb load | $1.90 | $9,120 |
| 36 in height | 30 in, for dense product | $1.35 | $6,480 |
None of these are dramatic per unit. All of them are real money annually, and several of them coexist in the same operation.
The three questions that find it
Who actually sees this box?
If the answer is “only our own staff”, the grade ceiling is 3A and anything above it is decoration. This single question accounts for most of what we find.
What does it actually weigh?
Not the design figure — the weighed figure. Loads are routinely thirty per cent below the number the spec was built around, which frequently means a wall grade down.
How many trips do we actually get?
If the real answer is one or two, durability is not being consumed and the premium is a donation. Mark fifty boxes and count them for twelve weeks.
The exception worth respecting
Sometimes the conservative spec is load-bearing in an organisational sense: a customer contract, an insurance position, a quality system that would need requalification to change. Those are real constraints and not worth fighting over a dollar a box.
The distinction is whether anybody can articulate the reason. If they can, respect it. If the only answer is that it has always been that spec, you have found money.
Questions