What is hollow cube without top and bottom called?

Off-Topic
#1

Hello,

Imagine hollow cube with the top and bottom surfaces removed, what is it called?
Only the four remaining walls are left, the top and bottom are open.

Thanks.

Lennox

#2

It’s still a cube.

#3

I think we can call a tube an open ended hollow cylinder, so, your shape maybe could be called an open ended hollow cuboid.

#4

Thanks Tim and Rick, follow-up with Google… hollow cuboid.

https://rechneronline.de/pi/hollow-cuboid.php

Thanks again.

Lennox

#5

A closed shoe box ( without shoes inside :smiley: ) is a hollow cuboid, a brick can be a cuboid (not hollow), for me, your shape description is better said as an open ended hollow cuboid.

#6

A square extrusion?

#7

Hi Scott,

Thanks, square extrusion seems to be the definitive answer but I have already indicated Rick’s answer… sorry.

Thanks again.

lennox

#8

You can delete the answer and then mark something else as answer …

#9

But, a square extrusion doesn’t necessarily have to be a cube - if it’s 3m long and only 4cm on a side …

:smiley:

#10

SQUARE HOLLOW SECTION & RECTANGULAR HOLLOW SECTION

https://www.metalsupplies.com/box-section-square-rectangular-hollow-section/

#11