There is information in the disABILITIES FAQs thread about the 2 types of handicapped accessible rooms.
What do they have at home?
If they have a roll in shower, they may want that, but you should be aware that the roll in showers also tend to have more splashing outside of the shower. This could create a slipping hazard if people are not aware of it.
Many people are able to get into a tub with a shower chair by sitting on the chair and then swinging the legs over the side when seated. If you have a handicapped room without a roll in shower, there will also be a handheld showerhead and grab bars in both the shower and toilet areas.
i would suggest one of the monorail resorts, specifically the contemporary or grand floridian... otherwise you will have to drive to the MK, walk a long distance, get on a monorail or boat, walk a long distance again (on ramps, there is no elevator) and then get a
scooter... the other option is to rent scooters from off-site - much less expensive, and you would have them for resorts and shopping too.
I would not stay at an off-site resort because they will need to worry about transportation and if there are buses, those buses drop guests off much farther away than the WDW resort buses do.
The monorail resorts have express monorails that go directly to the MK.
The monorail stations are elevated up to 2nd floor level. This is not a problem at the monorail resort stations, where you just take an elevator to get to the appropriate floor to get on. It is a problem once you get to MK because there are no elevators. To get off the monorail and to get back on when you want to go back to your resort, you have to use very long, steep ramps. Without having ECVs, they will find the ramps to be very tiring/daunting.
If staying at one of the non-monorail resorts, taking the bus is the best option. As was already mentioned, the busses are wheelchair accessible and leave you off fairly close to the park entrance.
My suggestion is to find out which park(s) they are interested in spending the most time at. If it's MK, then the monorail resorts would be best. If they plan to spend the most time at Epcot and/or the Studio, consider the Yacht or Beach Club. Those resorts have boat access to both of those parks. If they do rent ECVs from an off-site place, they would be able to drive those right onto the boats or use the nice paths to drive to the parks. THat would give them a lot of independence. Getting to AK or MK requires a bus ride from those resorts.
If they don't know which park they plan on, then staying at one of the moderate resorts would be a good option. As was mentioned POFQ is a nice, compact resort.
I would also suggest at least a Moderate resort for the needed space. If you use a Value resort then one of the ECVs should be stored (and recharged) in someone else's room as getting two ECVs in a Value room may be difficult.
Also, keep in mind that the handicapped accessible rooms with roll in showers are no bigger than other rooms at that resort. The space inside the room is arranged differently; the bathroom uses more room and the bedroom area is smaller.
Thanks for the good suggestions! Renting an EVC offsite does make alot of sense but these grandparents are fiercely independent and are the type that don't want to give up much of their freedom.
Going along withe Cheshire Figment's questions - using ECVs will give them a lot more freedom.
My FIL had really bad knees and hips. He held off using an
ECV for many years for some of the same reasons your grandparents are mentioning. When he finally did rent one, at the end of the day, he said he had the first painfree day at the parks in 15 years. He said he had let his pride get in the way of his good sense and he wished he had rented one years earlier. Instead of giving up, he finally saw the ECV as a tool of independence.
In the disABILITIES FAQs thread, in post #3, there is a link to a past thread by a poster named Ray Sharpton who had some of same worries and found how liberating an ECV can be.
I've never used the onsite bus system- we always just drive to the parks even when we stay onsite. Do they have a way to transport the EVCs for them to the parks? Or will they have to wait for a specific bus that has the wheelchair lift?
We use the wheelchair buses all the time because DD uses a wheelchair. They are very convenient and almost 100% of the buses have either lifts or ramps.