A:Answer Hello there. We understand your inquiry about fitting the LG WCEP6423F in your 28 ½″ opening.
The WCEP6423F is designed for a 30″ (standardized) wall-oven cut-out, with a required cut-out width of exactly 28 ½″—so your opening matches the spec perfectly.
Installation Tip: Before you slide the oven into place, double-check that your opening is level and square, and that you have the minimum ½″ clearance above and on each side (as called out in the installation guide). Also confirm you have at least 24″ depth behind the face frame for proper airflow and power-cord routing. This ensures the unit nests flush without binding on the cabinet and allows adequate ventilation.
https://www.bestbuy.com/site/lg-30-smart-built-in-electric-convection-combination-wall-oven-with-microwave-and-air-fry-stainless-steel/6534259.p?skuId=6534259
If you have any further questions about installation steps or need personalized guidance, please send us a private message on social media @LGUSSupport and our team will be more than happy to explore possible solutions. We appreciate your patience and thank you for choosing LG.
—Renzo
