Christmas tree skirts size guide

⌀ 20" (50 cm) — for mini/tabletop 2-3' trees
⌀ 30" (75 cm) — 3'-3.5' trees
⌀ 40" (100 cm) — for 3' - 4.5' trees
⌀ 45" (115 cm) — for 4.5' - 6.5' trees
⌀ 48" (120 cm) — for 7.5' trees
⌀ 56" (140 cm) — for 7.5' - 9' trees
⌀ 72" (180 cm) — for 9' trees and higher.

The central opening diameter is about 4-5" (slightly varies due to arm knitting).