Model N2-2032 charcoal grill provides a total of 600 sq. inches of cooking area on twin 300 sq. inch four level adjustable back-to-back cooking grates.Use one or both fireboxes, depending on the size of your group.Build different size charcoal fires depending on your menu. Each grate can be adjusted independently.All-welded grill firebox construction.  The N2-2032 firebox is fabricated from 3/16" (7 ga.) thick steel, with integral die-formed flanges to retain ashes and to reinforce the firebox from heat warpage. Plus there is a reinforcement ring under the entire firebox for additional strength.All welded cooking grate construction.  The cooking grates are fabricated using 5/8" dia. steel bars for support handles, and 1/2" dia. steel bars for the cooking surface. All grate bars are welded on both sides. The cooking grate is permanently incorporated into each firebox and cannot be removed.  Grate handle grips are 1/8" x 1/2" coiled steel bar.The firebox is securely attached to the base post with our theft proof swivel mechanism providing continuous 360-degree rotation in either direction.  The standard B2 embedded installation base post is 3-1/2" OD x 40" steel pipe.