Upholstery foam question

[tottenham]

After sitting in my desk chair for hours over the weekend while working on our taxes, I think it's time that I make a cushion.

Does anyone know the appropriate thickness of foam to use for a chair cushion?  I'm thinking 1", but wonder if that will be cushy enough?  

Here's a picture of it.  
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[pamela]

1" won't do much at all, other than give it a padded look. I'd go with 2".

[Blueper]

I did 2", it looks good and provides enough toosh support.

[TBM]

The density of the foam makes more difference than than the thickness, but either way, 1" won't help much.

[tottenham]

Feb 25, 2013 9:53:56 GMT -5 TBM said:

The density of the foam makes more difference than than the thickness, but either way, 1" won't help much.

Thanks for the quick replies.  I was thinking 1" because I thought 2" would look out of proportion.  The chair is short and thick.  I think I'll make a mock-up to figure this one out.

I forgot to ask in my earlier post about foam density.  DIY Upholstery Supply sells foam in two types of densities - 1.9 and 2.4.  Should I go with the 2.4?  Also, has anyone purchased from DIY Upholstery Supply before or do you have a preferred foam vendor?  Thanks again!