Here are the clearance heights from the grate to the top of the lid leaving space for circulation.
| Charcoal grill size | Clearance | Max weight |
| 18.5" | 5" | 10.5 lbs |
| 22.5" | 7.5" | 21 lbs |
| 26.75" | 8.5" | 24 lbs |
| 37.5 | 9.5" | 25 lbs |
| Smoker size | Upper cooking grate | Lower cooking grate |
| 14.5" | 7.5" | 5.5" |
| 18.5" | 9.25" | 7" |
| 22.5" | 10.75" | 8" |
