The challenge with using IKEA cabinets - is that they only offer 30" or 40" tall wall cabinets. DO NOT increase the height of your backsplash. It should NOT exceed 18" unless you are VERY VERY tall. There are other inexpensive cabinet companies available that do offer 36" tall cabinets. I would hate to see you lose the extra wall cabinet storage space just because a specific brand of cabinetry does not offer the size you need.
BUT - If IKEA is a non negotiable product selection, then here is my advice.
You could use the 40" and drop your backsplash down to 17" allowing you 2" of wiggle room above the wall cabinets and use a plain square trim - 2" still can be a tight wiggle room, especially if your floor/wall is not level. (I have never met a straight wall in my life!)
If you want to reduce the wall cabinets to 30" then add a crown riser trim above the wall cabinet and then the crown gets mounted to that. The riser should be a min of 6" tall for your space. Even though you stated your ceiling height is 95", it is possible your floor is not level, so a crown riser also allows for the difference in height to be adjusted when installing the crown. If the floor is not level, shimming the base cabinets will need to be done. Base cabinets MUST be level to be properly prepared for your counter tops. Above is a photo showing the finished look of a riser with crown attached. Below is also a cross section drawing detail of a crown riser with crown attached.
5" crown appears to be rather big, so make sure the protrusion of the crown does not interfere with door/window trim.
If you are planning different height wall cabinets, then you will need different depths to allow for the crown to die into the taller cabinet properly.
I might be giving you too much info here, but we have a saying in our industry "installers can make or break a design" I don't want to see you spend even $1.00 to find out your cabinets were installed wrong and/or you used the wrong sizes.
There is a reason why kitchen/bath designers get certified with the National Kitchen and Bath Association - there really IS a lot of detail in designing/ordering/installing these rooms.
Good luck and have some fun. I am sure your new kitchen will look grand!
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Benefits of handleless cabinets. The handleless style can help create a clutter-free look, making it the best choice for small kitchens. This isn’t just a visual effect, it’s also a physical one, since the lack of handles frees up more of the kitchen compared with a handled design. Although we’re not talking huge amounts of extra space, it’s enough for a more comfortable and efficient working environment, with maximum room to maneuver.This style also means that you can’t snag clothing or bang your hips or, worse, small children’s heads on door handles. Another benefit for parents is that there are no handles for children to grab and hang from. And handleless doors and drawers are much harder for young children to open — especially if you opt for child locks.
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