Reply by AlaskaGuy

  • Advertise with us

Posted on Is there a standard sequence for writing measurements ?

View AlaskaGuy's profile (online now)


6210 posts in 3224 days

#1 posted 09-26-2020 01:16 AM

I order 5 8 2×4s on the materials notation.

Different things have different units.

Rough lumber thickness is in quarters: 4/4, 6/4, 8/4. Board feet is always based on the rough dimension.

Finished lumber is given as nominals, 2×4, 2×8, etc. But it is known that the actual dims are 1-1/2” x 3-1/2”.

Build drawings have the final dims: 5/8” x 3-3/8” x 17-1/2”.

Doors are measured by feet and inches so a 32” wide door is 2-8 (pronounced “two-eight”)
A 36” door is 3-0 (three-oh) and this causes endless confusion as folx think “three-oh” means 30” – which it doesn t.

Rough and finish lumber tend to have the length as the first digits because that s how lumber yards sort, by length.

Final dims are generally listed by thickness first, again because this is how stock is sorted.

There are no absolute rules. In England the call a 2×4 a “four by two”. Both are correct.

- Madmark2

England???? Like Quigley said “We already run the misfits outta our country. We sent ‘em back to England.

-- Alaskan's for Global warming!

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics