![](https://planetplastics.com/wp-content/uploads/2025/01/domes-lrg.png)
![](https://planetplastics.com/wp-content/uploads/2025/01/domes2.png)
![](https://planetplastics.com/wp-content/uploads/2025/01/ssfl-production.jpg)
Expertise
What’s the difference between a dome and hemisphere? A hemisphere is half as tall as it is wide. A dome is less than half as tall as it is wide.
As shown here a 96” wide hemisphere will be 48” tall.
![](https://planetplastics.com/wp-content/uploads/2025/01/Alex-Hemi-a1-300x144-1.png)
A dome 96” wide will be less than 48” high, in this drawing it is 24” high.
![](https://planetplastics.com/wp-content/uploads/2025/01/Alex-Dome-300x94-1.png)
Planet Plastics can free form domes starting at 2” in diameter all the way up to 96” in diameter. We can also provide the part with or without a flange