Greetings,

Because of the pandemic, we lost our carpenter who was supposed to install a set of custom REFORM doors onto Sketion Ikea cabinets.

We are doing it ourselves now. No worries we are handy.

We have a Sektion corner cabinet installed but it was cut down to fit the space. Because the cab was modified I am not sure of what dimensions the REFORM doors should be now.

We originally ordered 12 ⅞ in x 29 ⅞ in x 15mm thick cover panels to use as the doors but now I need to trim them down to fit.

If the cab door opening left is 13 in W and cab door opening right is 14 ¼ in W what is the adage for determining the door dimensions?

Subtract the thickness of the doors from the left door? (15mm)

I did a full hinge mock-up with 3/4 plywood (all I had) with the original cover panel dimensions but the left door is definitely too big. (see image)

Thanks for your help!