"and the oven in the range is there if I need more space or am cooking at holidays, etc."

Don't assume that the ovens in 36" ranges are large. For example, the oven in the 30" Frigidaire PCFI3080AF is larger (height and depth) than the oven in the 36" Frigidaire PCFI3670AF.

In my last house I did similar to what you are proposing; 36" induction cooktop, 30" wall oven, 24" speed oven, microwave -- ended up using the 24" oven the most, and the microwave when there was something else in the speed oven. I used the 30" oven for really big (tall or wide) stuff, however, I think an actual 24" oven will have additional height/width that the speed oven did not. Pretty sure that most 30" microwaves that are made to go over a 30" oven are not bigger than a 24" -- just different trim out.

If the 24" takes a 1/2 sheet pan and has normal or usable interior height for two racks, that's all you'll ever use. 13 x 18" is a sheet pan.

We have a 30” wall oven with a steam/convection oven above it (basically a 24” oven trimmed out to 30”, like the microwave described above.) We use the smaller oven for 90% of our cooking.

IMO it matters not what we think you know how you cook and honestly appliances are all purchased first and foremost for how you use them . I run a catering biz with a 36" all gas range and double 27" wall ovens never needed more .I never design kitchens with built in MWs and for sure never a combo one with an oven. Steams ovens are one of those things that you need to decide how often you need one . I worked in commercial kitchens with steam ovens and honestly seemed like everytimewe really needed it it broke down I have not had the need for one to justify the cost . I think a 24" oven is too small for me since i do alot of cooking on sheet pans not commercial size but larger than a regular pan. Really think about how you cook and what you need .

• Cafe CKS70DP2NS1 27 Inch Single Convection Electric Wall Oven
• Cafe CSB912P2VS1 27 Inch Built-In Microwave Oven

Do a CSO (convection steam oven) as your second oven for even more flexibility.

I have a 36" Wolf Induction Range and a 24" Miele CSO XXL. (plumbed). Love the Miele CSO.

In hindsight, I should have just done an Induction cooktop and 2 or 3 Miele CSO's!

The Wolf range oven takes way too long to heat and harder to keep the larger capacity at the set temperature. The Miele CSO is quick to heat and keeps an even temperature.

Although not a good fit for everyone, a 24 inch wall oven does have two redeeming qualities. For one, if you are tight on linear countertop space, you’ve gained an extra 6 inches so there’s that. The only other benefit I see to the 24 inch with is that The total cubic feet of air inside that oven will heat up more quickly than a larger size. When walls were first introduced many decades ago, I believe 24 inch was the common standard. Personally, I do a lot of baking on larger sheets, and so the 30 inch is a lot more practical for me, but as others have noted here, all of our cooking needs are not the same so take all of these things into consideration and choose what works best for you.

Thanks everyone. I do cook a lot, and have 2 young kids. I’m looking for an alternative to firing up the 36” oven on a range for smaller meals, since I’d think the oven heats up more quickly. My previous house had a 36” Wolf range, and I felt like it took a bit to heat up. The microwave would be for normal “microwavey” things, but maybe a speed oven plus range would suffice instead of a 24” oven AND a microwave AND a 36” range with oven.

It would appear that the 240-volt SMEG JMC6224HL would heat quickly because of its ability to combine (a) the 1000w microwave with a 1400w or 2000w heating element or (b) operate two heating elements (up to 2000w + 1400w) simultaneously.