Lucky Joe:

Yes, itâÂÂs a âÂÂhackâ fix for a custom kitchen. You can add a filler to the right corner of the base cabinet but that will likely cause far more problems.

TheyâÂÂll need to remove the granite and all base cabinets to the right. To add the 2.5â or even a 1â filler will need to come off somewhere or the granite top may be too small. They may break the granite while removing it. Without seeing the layout, itâÂÂs hard to recommend the best answer.

One option is narrowing the sink base cabinet openings (equal on both sides) on both top and bottom by adding to the inside of the stiles. Depending on the hardware and overlay, if done well, it will look balanced, nobody will see the fix unless you open the door and/or tray.

The sink base gets a lot of wear and tear so if this fix is done poorly, it will look bad and give you headaches forever. If the door overlay isnâÂÂt wide enough and the fix is done poorly, it will be an eyesore.

They will need to order smaller sink front tray door(s) and smaller base door(s) but itâÂÂs much easier, cheaper and doesnâÂÂt create all the problems of removing and reinstalling everything. They may even have enough scrap material to widen the stiles which is good for color match.

Adding to the stiles behind the tray fronts isnâÂÂt a stress point so as long as it was glued and clamped, it isn't bad. If it was only tacked in with trim nails, it will loosen over time.

For the lower cabinet doors, they need to glue and screw the stile extensions (or better) as the use of the door will loosen the extension unless rock solid. Depending on the hardware, they should be able to hide the screws behind the hinges.

Even for custom cabinets, a good carpenter can make this fix. The headache is the time to order the cabinet doors and stile extension pieces, and making sure the color and finish is a good match.

Good luck,