Tree height for an 8.5 ft ceiling, by stand and topper
The stand, the topper and the gap you leave under the ceiling all come off the ceiling height. Here is the tallest tree and the largest standard size for an 8.5 ft ceiling with different combinations:
| Stand and topper | Tallest tree | Size to buy |
|---|---|---|
| 2 in stand, no topper | 8.3 ft | 8 ft |
| 3 in stand, 4 in topper | 7.8 ft | 7.5 ft |
| 3 in stand, 8 in topper (this page) | 7.5 ft | 7.5 ft |
| 5 in stand, 12 in topper | 7.0 ft | 7 ft |
| 3 in stand, 8 in topper, 6 in clear of a light fixture | 7.1 ft | 7 ft |
Trees that fit, with width and lights
The largest size is not always the best choice. A full tree is about 60% as wide as it is tall, and the floor space includes a foot each side. The last column is the space left above an 8 inch topper.
| Tree | Width at the base | Floor to clear | Lights (100 a foot) | Spare height |
|---|---|---|---|---|
| 6.5 ft | 47 in | 5.9 ft | 650 | 12 in |
| 7 ft | 50 in | 6.2 ft | 700 | 6 in |
| 7.5 ft | 54 in | 6.5 ft | 750 | 0 in |
An 8½ ft ceiling: an exact fit
With these allowances a 7.5 ft tree fills the space exactly, with 1 inch left between the topper and the ceiling. That works for an artificial tree, whose height you know. For a real tree, measure it standing in its stand before you put the topper on: a cut tree can be an inch or two taller than its label.
If you want more breathing room, a 7 ft tree leaves 6 inches above the topper. A 7.5 ft tree needs about 6.5 ft of clear floor across.
Use the Christmas tree size calculator with your own stand and topper, and read what size Christmas tree for my room for choosing and placing the tree. Keep a real tree at least 3 feet from fireplaces, heaters and radiators, and water it every day.
Want to change anything else? The calculator above is the full Christmas Tree Size Calculator: What Height Tree for My Room?: edit any number and the results update instantly.
Tools & materials for this project
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Frequently asked questions
What size Christmas tree for an 8.5 foot ceiling?
A 7.5 ft tree, with a 3 inch stand, an 8 inch topper and an inch of gap under the ceiling. That leaves room for 7.5 ft of tree, and 7.5 ft is the largest standard size that fits. Without a topper an 8 ft tree fits.
How wide is a 7.5 ft Christmas tree?
About 54 inches across at the base for a full tree, which is about 60% of its height. Clear about 6.5 ft of floor so there is room for the skirt and to walk past. Slim trees are narrower.
How many lights for the tree?
About 750 lights for a 7.5 ft tree at 100 lights a foot, which is 8 strands of 100. Use 150 a foot for a fuller look.
Can I put an 8 ft tree under an 8.5 ft ceiling?
Not with an 8 inch topper and a 3 inch stand: an 8 ft tree needs 6 more inches than an 8.5 ft ceiling leaves. Leaving the topper off makes it fit.
Related sizes and guides
Related sizes
Estimates only. Results assume standard materials and simple shapes. Supplier products vary, and the final call on quantity, structure and safety is yours. Check your local code and your supplier's guidance before ordering.