7 ga. base plate with 10 ga. side plate
2-3/8″ O.D. post ( Standard on the 620)
3-1/2″ O.D. post (Recommended on the 630)
4-level adjustable cooking grate has cool-coil handles
Firebox is 3/16″ steel
All MIG welded
Post is inground mount
The 620 rotating grill has 280 square inches of cooking area while the 630 grill has 300 square inches.