@theqielves: You can watch every series of #QI on BBC iPlayer. This clip is from Series H Ep.7 ‘Horrible’ with #StephenFry #AlanDavies # ChrisAddison #SeanLock #DaraOBriain
wrong....2x 4 rough sawn timber generally measures 2x4 it only reduces when you get planned /finished timber
2026-10-21 17:20:08
65
Shankosaurus :
Sean Locke worked in construction. He knew.
2026-10-21 15:31:28
794
wrexham_slippy :
2 x 4 is an Americanism, in the UK it’s a 4 x 2.
2026-10-23 08:06:42
48
Captain Relevant :
Coin clippers are in every industry, shaving off what they can get away with, the result is this
2026-10-23 02:30:57
22
Andyjg :
He’s wrong here. He’s talking about 2x4 PAR. 4x2 sawn is 4x2.
2026-10-21 19:19:16
50
MJ :
In Australia, they are generally 90mm x 45mm
2026-10-21 23:20:02
17
Adam :
90mm x 45mm
2026-10-21 17:46:14
42
Tom :
north america say 2x4. In uk it’s 4x2
2026-10-21 18:13:00
138
Richard :
2x4 par ( prepared all around )or pse prepared squared edge is smaller but there is a 2x4 sawn that is that size ! But now days its not rough sawn smaller because it’s all c16 or c 24 and that’s 47mmx 95mm
2026-10-22 18:06:08
5
tom :
95mm x 45mm
2026-10-21 19:37:18
10
Jaydentommy1 :
95x45mm
2026-10-21 20:34:58
15
J8719 :
It is if it’s rough sawn he didn’t say PAR
2026-10-21 21:12:00
20
kwak zx9r & zx10r :
depends if its rough sawn or pse, (planed , squared, edged) qi aint done a joinery apprenticeship i have, and 100mm x 50mm finishes 47x95mm planed but 4x2 rough
2026-10-21 16:11:33
13
Jimmy B :
Even if those dimensions were right, the correct answer would be 2x4xX, where X is whatever length they cut the timber to.
2026-10-21 15:52:07
6
ukko1998 :
2x4 is in my opinion pretty much exactly 50x100mm and because 2” is more than 50mm, the 50x100 is actually more accurate, than using imperial units
2026-10-21 16:04:00
5
BarbarianLibrarian :
if i had a nickel for the amount of times I explained this working at home depot, ide have Elon Musk money.
2026-10-22 16:27:22
0
Katheer Kalam :
90mm x 45mm.
2026-10-23 10:06:21
0
Mr Brown :
The definitive answer is 94x47mm, but this can vary slightly depending on the moisture content of the timber
2026-10-22 07:29:32
74
Mark Stephen :
4x2 in this country 4"x2". in USA 2x4 - 100x50mm
2026-10-21 17:18:22
0
Radical Razel :
48x98mm innit
2026-10-22 10:51:10
0
Vegard 🇧🇻 :
Here it is 48x98 mm. Original cut to 2"4", but then adjusted.
2026-10-21 16:58:08
4
Baa Baa Black Belt :
the correct answer is "Rough Cut or Planed?" Rough cut 2x4 is still 2" by 4", and you can still buy it that way. when they plane it down, the sander takes off about 1/2" per side.
2026-10-23 15:31:05
0
jo :
we call it 2 thumbs 4 instead of 2 times 4 in 🇳🇴 even though it's 48x98mm
2026-10-22 11:14:18
2
Robert James :
it's 4x2 not 2x4 and it's 47mmx97mm
2026-10-21 19:14:24
2
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