Crochet Christmas Wreath Crochet Christmas Tree Skirt Question?

Crochet Christmas Tree Skirt question? - crochet christmas wreath

I am knitting a Christmas tree skirt as a gift for someone, and I had some questions. I need advice, in fact, more than anything else. I am, whether I should make a half or full circle skirt confused. The people who take me to a little place to sit and usually your tree against a wall instead of in a corner, but probably not always be there, I do not know. Half-or? What do you think?
The other question is whether I am to make the skirt, like a thick carpet or thin like a blanket. Thin would be easier to save, to remain too thick, but under the tree. I think a combination of both. Make thick circle, most of them go to the skirt, and a thickness adjustment to remain in force.
Any advice on the slopes of the tree would be appreciated. Thank you!