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View Full Version : Is 3/4" MDF actually 3/4"



97srad750
04-15-2010, 01:53 PM
Just curious before I start planning. I know a 2 x 4 isn't 2" by 4.

bubbagumper6
04-15-2010, 01:55 PM
Yes, it's actually 3/4"

I actually had a discussion with a coworker the other day about how stupid the naming convention is for lumber (ex. 2x4)

schackel
04-15-2010, 01:56 PM
they used to be real 2x4s though. they are huge

Johnny Law.Lulz
04-15-2010, 01:56 PM
Just curious before I start planning. I know a 2 x 4 isn't 2" by 4.

a 2x4 is actually 1.5"ish by 3.5"s ish because when it is made, it is rough cat at 2x4 then planed down. MDF is man made and not naturally occuring in nature as far as i know so its what it should be since it doesnt need ot be planed.

DonH
04-15-2010, 01:57 PM
depends what kind of mdf you get. if u buy it as Ultra Light mdf its about 11/16" but most home depot MDF is indeed 3/4" some are about 1/32 off

97srad750
04-15-2010, 01:57 PM
Thanks fellas

Johnny Law.Lulz
04-15-2010, 01:59 PM
depends what kind of mdf you get. if u buy it as Ultra Light mdf its about 11/16" but most home depot MDF is indeed 3/4" some are about 1/32 off

Thats different than the 2x4 thing though. lulz.

DonH
04-15-2010, 02:07 PM
Thats different than the 2x4 thing though. lulz.

he merely used a 2x4 as a ref. he knew that it was not exactly 2"x4".... not sure if he knew why but that's besides the fact. he asked if MDF was indeed 3/4" which was answered. lulz

Johnny Law.Lulz
04-15-2010, 02:12 PM
lulz and teh technicality and well though out response to my post, i appreciate your maturity and respect in your elegant answer kind sir.

bubbagumper6
04-15-2010, 02:18 PM
lulz

DonH
04-15-2010, 02:20 PM
lulz and teh technicality and well though out response to my post, i appreciate your maturity and respect in your elegant answer kind sir.

yeeee...

dat bettah?

haha its all fun and games :-p

97srad750
04-15-2010, 04:29 PM
Well I have a sheet of 5/8" MDF. It's just for 2 13w1's with little power, so I should be alright.

Anyone want to check my math for my cutlist?

Box is 33" wide x 13" deep x 16" High

Cutlist based on 5/8" MDF
2 pcs 33" x 16" front and back of box
2 pcs 33" x 13" top and bottom
2 pcs 14 3/4" x 13" sides

Fuknmovin
04-16-2010, 10:37 AM
Just make sure and brace it well and it should be fine...

spltuscon
04-16-2010, 12:29 PM
Not gonna work if you want it to be 16"h and 13"d. Might want to subtract the 1.25" of thickness from somewhere :)

michaellane
04-16-2010, 12:32 PM
gosh no cut out sheets :(

Fuknmovin
04-16-2010, 01:01 PM
HAHA didn't even look at that!

Jaredturp
04-17-2010, 03:01 AM
It's just shy of 3/4 if I remember correctly.