Skip to main content

Is it really "metric"?

Most of the so called 3/4” plywood that gets delivered to my shop actually measures out closer to 11/16” in thickness. That's because, I am told, that it is "imported" plywood and is measured, not in inches, but in millimeters.

A sheet of plywood contains 32 sq. ft. of wood (at least I think it's wood). At three quarters of an inch in thickness, that's the equivalent of 24 board feet of material. But at 11/16, if you take that "missing" 1/16 and cut it into one foot squares, you will have a stack 2” high (1/16 x 32) which translates into two board feet of wood per sheet, each of which now actually only represents 22 board feet of material. If you multiply that over a unit of 40 sheets of plywood, there is a total of 80 sq. ft. of plywood "missing" or the equivalent of right around two and a half sheets.

Draw your own conclusions...

The other day I went into the "mongo-mart" that got built right across the highway from my shop. I wanted to get some drinking water for my cooler. There were "gallon" bottles on the shelf and without really looking I grabbed three of them. When I went to pour them into the cooler, I noticed that each "gallon" bottle had a large indentation on the bottom that removed at least a pint from the volume of the bottle. So my three gallons was actually only about two and three-quarters gallons. Is it just me or is there a similarity here?

Again, draw your own conclusions...


Related Articles

Is it really better?

We are hearing a lot about how well the economy is doing these days. Unemployment figures are looking good. And that’s supposed to be one of the indicators of a healthy economy. But at the same time there is an undeniably widening discrepancy in the ratio of people making billions and people barely scraping by.

Is it a lost cause?

I recently saw an internet posting of a very fine piece of woodwork. There were many compliments, including “that could be in the Louvre!”

Is it just me?

I’m laughing out loud at the current proposal to send immigrants to sanctuary cities. I happen to live in one and the biggest problem local businesses have is finding good help.