[. . . ] ® Gas Built-in Cooktop OVERALL DIMENSIONS Metal Cooktops PRODUCT MODEL NUMBERS GLT3057R GLT3657R SCS3017R SCS3617R B Gas Supply: This cooktop is factory set for use with Natural gas. Provide a gas supply line of ³/" (1. 9 cm) rigid pipe to the cooktop location. [. . . ] 2/" (7. 3 cm) Straight-edge glass cooktops B A C CABINET OPENING DIMENSIONS A. 30³/" (76. 8 cm) on 30" (76. 2 cm) models, 36/" (92. 5 cm) on 36" (91. 4 cm) models C. 2/" (7. 3 cm) A D Curved-edge glass cooktops B C B A C M K E F G A. 30/" (77. 0 cm) on 30" (76. 2 cm) models, 36/" (92. 3 cm) on 36" (91. 4 cm) models C. 30" (76. 2 cm) on 30" models; 36" (91. 4 cm) on 36" models B. 30" (76. 2 cm) minimum clearance between top of cooktop platform and bottom of unprotected wood or metal cabinet (24" [61 cm] minimum clearance if bottom of wood or metal cabinet is protected by not less than ¹/" [0. 6 cm] flame retardant millboard covered with not less than No. 28 MSG sheet steel, 0. 015" [0. 04 cm] stainless steel, or 0. 024" [0. 06 cm] aluminum or 0. 020" [0. 05 cm] copper) D. 2¹/" (5. 4 cm) Because Whirlpool Corporation policy includes a continuous commitment to improve our products, we reserve the right to change materials and specifications without notice. F. 18" (45. 7 cm) minimum clearance from upper cabinet to countertop within minimum horizontal clearances to cooktop H. Grounded outlet - Locate within 24" (61 cm) of right rear corner of cutout I. [. . . ] 24" (61 cm) minimum countertop depth is required Dimensions are for planning purposes only. For complete details, see Installation Instructions packed with product. [. . . ]