A seam may be placed near a cooktop when the fabricator confirms adequate support, heat clearance, and material strength.
Cooktop openings leave narrow strips of countertop that can be vulnerable to cracking.
Heat may affect some seam adhesives and resin-based materials.
A seam should not create unsupported corners or interfere with appliance clips.
The final location depends on slab size, cabinet rails, cooktop dimensions, and access for installation.