Underquilts.com shell filling down help?

**Armor Like Fire** · 09-13-2013, 11:19

Hey guys viper here!
Well I decided to go with a UQ made shell then fill it because well it's cheaper. So I ordered a shell yesterday but I'm still not sure how many oz of down to put in it for a 0deg UQ? So if I post a pic of how I had them make it would someone be able to tell me how many oz of 850fp down I would need to get my 0deg temp I'm wanting? Thanks guys

**Armor Like Fire** · 09-13-2013, 11:20

image.jpg
Here is what I ordered.

**Armor Like Fire** · 09-13-2013, 11:21

Originally Posted by Viper

image.jpg
Here is what I ordered.

I got it on argon black 4season UQ shell.

**Boston** · 09-13-2013, 12:03

Calculate the volume (V): L * W * H = V (use inches)

Calculate Weight of down (W): Divide Volume by Fill Power of your down: V / Fp = W oz of down

Calculate adjusted Weight (W'): Conventional wisdom says overstuff 30% to prevent down migration and to account for any loss over time: W * 1.3 = W'

So if you have a 46" x 72" quilt with 3 inch baffles, and 850FP down:

46 * 72 * 3 = 9936 / 850 = 11.7 * 1.3 = 15.2oz of down

Divide by number of chambers and fill equally.

**Mountnman** · 09-13-2013, 12:10

http://underquilts.com/how-to-finish-your-uq/

Scroll down on this page and it gives you the numbers in a chart

**Zilla** · 09-13-2013, 12:16

Originally Posted by Viper

image.jpg
Here is what I ordered.

I will give you the exact numbers in 2 minutes

1.66 oz per baffle for a total of 15.00 oz - 850 down fill. thats a 20 percent over and will put you at 0-5 below

Dave at underquilts.com will give you the exact amounts before he ships it, he is very helpful.
I am waiting on the exact same one for my wife and the amount i just told you was a copy and paste from an email dave (lost_biker) sent me,
Private message him now and he will give you the numbers today, wilderness logics has the best prices and if you dont want to get too messy they will package in 1/2 or 1 oz static free bags for you.
Message dave!

**Armor Like Fire** · 09-13-2013, 12:24

Originally Posted by Mountnman

http://underquilts.com/how-to-finish-your-uq/

Scroll down on this page and it gives you the numbers in a chart

Oh I had forgotten about that lol thanks

**Armor Like Fire** · 09-13-2013, 12:27

Originally Posted by Saedy

I will give you the exact numbers in 2 minutes

1.66 oz per baffle for a total of 15.00 oz - 850 down fill. thats a 20 percent over and will put you at 0-5 below

Dave at underquilts.com will give you the exact amounts before he ships it, he is very helpful.
I am waiting on the exact same one for my wife and the amount i just told you was a copy and paste from an email dave (lost_biker) sent me,
Private message him now and he will give you the numbers today, wilderness logics has the best prices and if you dont want to get messy they will package in 1/2 or 1 oz static free bags for you.
Message dave!

Oh awesome that's perfect thank you very much!!

**iRokk** · 09-13-2013, 12:31

It says weight for full length shells is 9.4, but shouldn't the different materials be a little less. Like an ARGON shell should be slightly lighter, correct? I wouldn't feel so bad stuffing 15oz of down into a 7-8oz shell and ending with something sub-24oz.