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Comment by porknubbins | Hacker News Reader

2x4s are one of the only things I can think of whose entire name is just literally raw dimensions, so finding out they are not even right was a real wtf moment.

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Why is 24/7 "anytime" Pizza only open from 10:00 PM - 4:00 AM on weekdays or 11:00 PM to 5:00 AM on weekends?

https://www.247pizza.nl/contact

I went down the street to the 24-hour grocery. When I got there, the guy was locking the front door. I said, “Hey, the sign says you’re open 24 hours.” He said, “Yes, but not in a row.” -- Steven Wright

A couple of years ago there was an urgent care clinic near me that put up a big banner that said "Now open 24/7" and in smaller letters underneath, "Closed Sunday, Monday, and Thursday". Presumably they had a novel definition of "/7".

If time counts as a dimension then there's 7-11.

Los of batteries are hmm in some circles purely by their dimensions. 18650s for example.

A4 (paper)

35mm (film)

9mm, 12ga, 22cal (firearms and munitions)

A pint (beer)

A 40 (beer again)

Two four (beer, though it refers to the amount of cans rather than dimensions)

26er (booze)

40 pounder (booze again)

Deuce and a half

Like finding out men's jeans sizes are not actually the dimensions of the waist.

If you’ve ever done construction work (particularly framing obviously) you tend to realize it very quickly, but you get quite used to dealing with it; it’s all quite standardized, simple carpentry.

A lot of batteries like 18650’s or CR2032’s as examples are basically just their size in millimeters, and as far as I know, they are accurate.

Seems a bit strange it was never rebranded... We just buy structural timber by its actual dimensions (the standard here is 90x45 mm) here in Australia.

if we (America) ever actually finish migrating to metric that might actually happen, but 1 1/2" x 3 1/2" just doesn't roll off the tongue.

I find it interesting that it's not 45x90mm.

For a lot of applications, you can assume thickness, so width is usually the headline number.

Floating shelves are typically going to be a nominal inch thick, likely planed to around 20mm, so you can tell an apprentice to go and get 2m of 140mm board

Have faith in 8020.

Is that mm?

Well, 20mm x 20mm, now I'm wondering about the 80...

kind of like the footlong from subway

I thought they were supposed to be 12 inches long but for whatever they didn't end up that way. That's slightly different than a piece of wood that's supposed to be smaller than 2x4

Edit: apparently there was a class action lawsuit but it found that by and large the bread is 12 inches: https://www.forbes.com/sites/ericgoldman/2016/02/29/why-the-...

They're longer than my foot so I'm getting a deal.

Just wait until you find out about the quarter pounder. :)

Aren't those supposed to be a quarter pound before cooking?

I ordered a quarter pounder at a McDonald's drive through, and the cashier said, "There will be a wait on that." I asked, "Oh really? How much will it weigh?" There was a long pause, and they finally said, "About 5 minutes."

This is an A+ dad joke, you should be proud.

The precook weight used to be 4oz (1/4 lbs) but is now 4.25oz, which, I mean, all told, isn't all that different.

Plywood has entered the chat

The 3/4" plywood I get is 3/4". But there's a lot of 11/16" plywood. It makes a big difference when repairing subfloor.

23/32” is quite common, to the point where they make sets of 1/32” undersized router bits for cutting slots to fit undersized plywood

https://www.woodcraft.com/products/freud-89-670-3-piece-unde...

  - Creates perfectly fitted grooves and dadoes
  - Ideal for 1/4" to 3/4" plywood
  - Includes 7/32", 15/32", and 23/32" diameters

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