Ram Board and the hope that your installer has done this before. We had no issues with my 48" range installation.

To put the range from the ram board into the spot between the cabinets do you use anything to prevent scratching under where the range will sit? I'm going to do the ram board for the main part of the kitchen floor but was concerned how they get the range off of the ram board and slide it in between the cabinetry. I was going to use the appliance store where I got the bluestar from to install the range. But we are getting a propane line put in and the propane company wanted to hook up the range to the propane line to make sure everything was functioning properly, so I'm not sure how much of an expert they are at moving the range.

The repair people typically use a large, hard plastic sheet that is first slid under the front legs by rocking the range up on its back legs and then rocking the range on its front legs while pulling it forward until the back legs are on the sheet. The range is then pushed into place with the (slippery) sheet sliding on the floor. The sheet is removed by rocking and pushing the back legs off just before the range gets all the way to its final location. Finally, the range is rocked onto its back legs again to remove the sheet from under the front legs.

A more accessible method for the homeowner is to do the exact same procedure with a moving blanket instead of the plastic sheet. Moving blankets can usually be purchased at stores that sell moving boxes and packing supplies

We flip 3x4 area rugs over and slide things all over the place. No scratches yet.

In service many of us use an Air Sled. You may be able to rent one. Carpet people use them too.

One-quarter-inch thick hardwood plywood can be spread out for sliding heavy appliances to cabinet adjacency, and then front-to-back strips of the plywood aligned with the "feet" of the appliance can be used for final sliding into place. Then, either jack up one side after another and remove the strips, or keep them in place if the floor is soft (cherry, pine, etc.). For supporting significant weight on small feet over soft wood, the hardwood plywood can be augmented by stainless steel or aluminum strips to help spread the weight over more of the hardwood plywood and hence more of the underlying soft flooring. My 48-inch SZ refrigerator/freezer uses that approach over a cherry floor. This does raise the appliance slightly, so that may be a factor in deciding whether to keep the strips in place after appliance placement.

Air sled is great but furniture glides under the feet do the job. Inexpensive. Can be found in just about any hardware store.