What Size Christmas Tree Do You Need? Ceiling Height and Width

Pick a Christmas tree one to two feet shorter than your ceiling: 6 to 7 feet under an 8-foot ceiling, 7.5 to 8 feet under 9 feet, 8 to 9 feet under 10 feet. Balsam Hill recommends at least 12 inches above the tree. A full tree is about 55 to 65 percent as wide as it is tall.

Christmas tree height by ceiling height

Christmas tree height is measured “from the stand to the topmost tip,” as Balsam Hill puts it, so the stand counts and the topper does not. Balsam Hill recommends leaving “at least 12 inches between the top of your tree and the ceiling.” King of Christmas suggests choosing a tree “approximately one to two feet shorter than your ceiling,” and publishes this chart:

The two makers differ slightly on the gap: King of Christmas’s buyer’s guide allows 6 to 12 inches, Balsam Hill asks for at least 12. Plan around the larger gap if your topper is tall. Balsam Hill’s topper guide adds that the topper itself should stay at least 6 inches below the ceiling.

Christmas tree width and shape

Christmas tree width matters as much as height in a small room. King of Christmas says a tree’s width is typically 55 to 65 percent of its height, and it puts a 7.5-foot tree at about 52 to 60 inches wide at its base. Treetopia gives widths for the three common shapes at 7 feet:

Measure the floor where the tree will stand, then add space to walk around it and to keep it clear of heat. In a corner, measure along both walls from the corner to the nearest furniture or door swing: a full 7-foot tree needs more than 4 feet each way, while a pencil tree needs under 2. If the floor is deep enough but the wall is short, a flatback tree, which Balsam Hill describes as resting flat against a wall or corner, keeps the full look from the front. The U.S. Fire Administration advises keeping a tree at least 3 feet from fireplaces, radiators, space heaters, candles and heat vents.

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Christmas tree height ranges by space

Christmas tree heights fall into four bands in Balsam Hill’s buyer’s guide, each matched to a kind of space. The bands are broad, so use them to narrow the search and the ceiling chart above to pick the exact height.

Use the bands with the shape in mind. A 12-foot tree is in the 10 to 14 foot band, but a full one can be over 7 feet wide, as the tall tree guide shows with real models, while a slim one of the same height is much narrower.

The stand adds to the height. King of Christmas says there is “an approximate 8-14 inches of space between the stand and the start of the tree,” the bare trunk that a skirt covers. That space is part of the measured height, so a 7.5-foot tree’s lowest branches start well above the floor.

Christmas tree sizes for every room

Each size has its own page. A tall Christmas tree of 9, 10 or 12 feet needs a high ceiling, more lights and help to assemble. A slim, pencil or flatback tree gives height without width or depth. A small or tabletop tree of 2 to 4 feet fits a desk, a dorm or a care home room. Once the size is settled, the artificial Christmas tree guide covers lights, branch tips and finish.

Tree height and the topper and skirt

Tree height sets the size of everything around the tree. Balsam Hill’s topper chart, for a 9-foot ceiling, pairs a 7 to 7.5 foot tree with a topper only about 4 inches tall, even though about 12 inches remain once its 6-inch gap is taken off (our reading). The Christmas tree topper guide covers that chart and how to measure for a topper. Below the tree, a tree skirt should be wider than the tree: 48 to 60 inches for a 6 to 7.5 foot tree, by Balsam Hill’s sizes.

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