You do NOT have to use this same molding for your door trims, but that is a good option. Door trims normally butt against the floor, then the wall base trim butts against the door trims.
Quarter rounds are used to cover gaps in the floor. Use a baseboard saw to mitre the corners of the baseboard together. Don't use corner kits they look horrible when pieces together.
I'm not sure but they come in packs of 18'
No you have to cut them for corners
I got it for $59 a bundle (10 pcs). Very cheap for a great product.
I have installed over 1000 linear feet of these and in one or two units, i did not paint it since I ran out of time. The only issue with that is it will get dirtier sooner. I used brad nails and those will show unless you caulk over it, which will then show the caulk stain. I recommend painting before installing if you can and for best results
I saw them and the Home Depot guy fitted it right to the end of the lwm623 moulding - yesterday. They were the bullnose and were $4.50 ea.
3.5 height 9/16 width and 144 in long (12 feet long) 10 pieces total more then you will need
Yes can you buy individual pieces