you need components.....carcasses from Scherrs or Ikea and a variety of places to get the insides...Hafele / Rev a Shelf etc. Not sure where the problem is but send your measurements on to Scherr's ...their carcass interior surfaces can be provided in a few ways I believe..... they are helpful and maybe they have a preferred source for the rollouts ... or build those as well , come to think of it.

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So whoever your builder uses for cabinetry, that company doesn't make doorless base cabinets with rollout shelves? That's very strange. I put a couple of those in my laundry, but I had to specifically ask for them, as they weren't pictured in the cabinet catalog. Have you asked?

For most cabinet lines, there is no functional difference between a roll-out and a drawer. A roll-out is largely just a drawer without the face attached to it, sometimes the side panels are made shorter, but often they are not. It can be helpful to mount the slide in a different position, but for most cabinets with an adjustable slide you don't even need to do that and since you are not even using the door, the mounting position of the slide is not a problem. So the cheap solution is to find a cheap traditional drawer base and simply not attach the drawer fronts. Just make sure your drawer has a false front that looks like this:

Note: the drawer base sides above can actually be cut down by a competent carpenter. Or really anyone with a table saw and the knowledge to use it correctly.

Having said that, drawer bases are rarely cheap and so going with IKEA has some real advantages. However, IKEA uses integrated drawer fronts and so you will have to order the cabinet frame separate from the box. You are looking for the MAXIMERA Low inner drawer with front. As for cost, you can get a 30" IKEA cabinet frame for $78 and the MAXIMERA Low inner drawer for 30" cabinets are $78 each... just choose how many you want.

Good luck

Why not just do drawers and true pullout pantries so much better use wise and for cleaning too. BUt yes Ikea is the answer if you want this look which BTW will always look like you forgot the doors

The widest drawer base from Ikea is 36".

Your other option would be to get pullout baskets etc (if you are planning to put food in them) as an after-market add on. You just need to make sure they fit the cabinet boxes. If you are doing appliances that wouldn't work as well...but then I would just do drawers if you want to store appliances. Kind of depends what you want to put there.

Make sure you plan a space for laundry baskets.

IKEA.

You can get super basic drawers (that are also nice Blum hardware) and you can get drawers done so that the fronts are recessed slightly to the cabinet front. (think plain white) . If you want that more open look. IKEA may even have a cover for the door mounting areas that would be exposed)

But THEN - you can add doors LATER if you decide the open look isn't for you. Or you could reconfigure the drawers to be "actual" drawers reusing pretty much everything and just getting drawer fronts.

A full IKEA solution (assuming you stay with a lower cost drawer front) should not break your budget vs some other solution that does not have an "enclosed" look

Take a look at IKEA Ivar. They’re made of pine and can be painted or stained. We used them in our pantry exactly as you’ve described. Drawers at the bottom and open shelving on top.

We used them in our pantry. Materials cost was less than MDF shelving. DH and I assembled and installed them ourselves (savings on labor costs!) and it was really easy. I love that the shelves are adjustable and have been moving them around as I organize the pantry.

Roll-out shelves are going to get very dusty (as will open shelving). Much better to get actual drawers and upper cabinets. If you really want an "open" look, put a couple of open shelves where you can store items that you can easily dust, because they will get dusty!

You all are extremely helpful! Yes, nester44. I thought about the dust factor, and am probably going to include an air purifier in the pantry anyway to keep the microwave and laundry smells controlled. Wish I didn't have to have these two functions so close together, but here we are. I have an appointment scheduled with IKEA to start the design, and select the final look of the whole room. Even stock cabinets at big box stores or other modest cabinet retailers are super expensive. IKEA is the right place to go for this space. Cheers!