All dimensions below come from the current product pages. Unless noted, the measurement shown is the cooking surface (the flat area you cook on).

Flat Top Original ("Full Size")

  • Cooking Surface: 27" x 18-1/2"
  • Overall Footprint: approximately 30" (side-to-side) x 20" (front-to-back)
  • Material Thickness: 3/16 inch
  • Versions: 30" Gas Range (4 or 5 burners) · 30" Electric Coil Range · 30" Glass Ceramic Range (includes the required Spacer Kit, which elevates the Flat Top 5/8" above the glass)

PRO Series Flat Top Original

  • Cooking Surface: 26-1/2" x 18-1/4"
  • Material Thickness: 5/16 inch
  • Fits: standard 30" gas or electric coil ranges (4 or 5 burners; the drip tray is not compatible with 6-burner cooktops)

Junior Flat Top

  • Cooking Surface: 18" x 18" (PRO Series Junior: 17" x 18")
  • Material Thickness: 3/16 inch (PRO Series: 5/16 inch)
  • Fits: 30" five-burner gas ranges — covers the center and right-side burners; minimum 19" cooking-area depth

Slim Flat Top

  • Cooking Surface: 10" x 18" (PRO Series Slim: 8.75" x 18.25")
  • Material Thickness: 3/16 inch (PRO Series: 5/16 inch)
  • Fits: two burners on a standard 30" gas or electric coil range

Flat Top Duo

  • Overall Size: 11.75" x 20.625" (cooking surface 10.5" x 17.5")
  • Material Thickness: 3/16 inch
  • Fits: any two-burner area at least 11.75" x 20.625", inside an oven, or any outdoor grill 24" or larger

Flat Top For Outdoor Grill (FT Series)

These sit on top of your existing grill grates — measure your grill's cooking-grate surface (width x depth) and compare with the minimum grill area for each size. The lid must still close.

  • FT20: 19-3/4" x 16-13/64" — needs a grill area of at least 20" wide x 17" deep
  • FT24: 23-29/32" x 16-13/64" — needs at least 24" wide x 17" deep
  • FT30: 28-25/32" x 16-13/64" — needs at least 30" wide x 17" deep
  • FT24-PRO: 23-3/4" x 15-7/8" (5/16" steel) — needs at least 24" wide x 17" deep
  • FT30-PRO: 28-1/8" x 15-7/8" (5/16" steel) — needs at least 29" wide x 17" deep
  • FT36-PRO: 34" x 15-7/8" (5/16" steel) — needs at least 35" wide x 17" deep

Griddle Insert For Charcoal Grills

  • 18" Insert: 17-3/4" outside diameter — for 18" kettle grills
  • 22" Insert: 21-1/2" outside diameter — for 22" kettle grills
  • 26" Insert: 25-3/4" outside diameter — for 26" kettle grills

Griddle Upgrade for Blackstone

  • Sizes: 22", 28", and 36" replacement griddles (3/16" steel)
  • Blackstone specifications vary between model years — please compare the spec sheets on the product page with your unit before ordering.

Custom Flat Tops

  • Size: built to your measurements, up to a maximum of 36" x 24"
  • Material Thickness: 3/16 inch (5/16" PRO steel is not available for custom builds)
  • Custom builds are final sale, so accurate measurements are essential — see our guide on how to measure for a custom Flat Top.

If you have additional questions about these dimensions or need further assistance, let me know!