how big should christmas tree skirt be

The size of the Christmas tree skirt will depend on the size of the tree you have. You want the skirt to be big enough to cover the base of the tree but not so large that it overwhelms the tree. A general guideline is to have the skirt cover at least 6-8 inches of the ground. If you have a very large tree, you may need to go with a larger size, but make sure to measure your tree first to ensure a proper fit.