If you are using a berber type carpet i would set the base about 3 8 off the sub floor.
Carpet or moulding first.
Something will get spilled or dropped muddy boots will walk across it or it will have to be pulled up to fix something else.
Deciding whether you should paint before installing carpet or not has benefits and drawbacks on both sides.
If you are thinking one of the thinner more commercial like products without any padding i would lessen the spacer to 1 4 to 3 8 to prevent any unsightly gaps.
Carpet installers have to bring large rolls of carpet into your home 12 foot rolls minimize seams in your room not small paint cans or brushes.
Carpet is always the last trade in on new construction because the other trades will ruin the carpet.
If you are carpeting with any type of plush rug with padding just use the thickness of the base moulding 1 2 to 9 16 to space the trim off the floor.
If you re replacing carpet first before painting it will be easier for the flooring company.
On the other hand if you paint the wall first then the trim paint could bleed over and.
Should you install carpet or trim first.
I think the carpet should be one of the last things you do on the project period.
After trim paint tile other types of flooring etc.
You want to install your trim before the carpet.
Paddedhat is the expert because he builds houses for a living.
Retrofit is a different matter.
The least amount of construction traffic on the carpet the better.
If you paint the trim first you run the risk of the wall color splattering and having to touch it up again.
If you are thinking one of the thinner more commercial like products without any padding i would lessen the spacer to 1 4 to 3 8 to prevent any unsightly gaps.
With thicker carpet and pads usually 1 2 works perfectly.
The carpet guys believe installing flooring first would be the most cost effective and stress free solution and here is why.