Assuming you are referring to Wheelchair access ...
There are elevators each end of the lobby down to the Boardwalk, Pools and Epcot/MGM ferries, these serve Boardwalk Inn one side and Boardwalk Villas the other. The bus stop is out the front lobby door then down a ramp to the stop. This is the only ramp you will encounter other than the one down to the boat dock. The bus stop is effectively one floor lower than the lobby, so you will find the ramp hard work if you are in a manual chair. However, there is a house phone at the bus stop, so you can call bell services to get someone to push you up the hill.
I have stayed in 'handicap' rooms at both Inn and Villas, and both were right up near the elevators. If you are staying at the Inn, ask for a handicap room with roll in shower. These are situated (one on each floor above each other) where the building makes a 135 degree change of direction. These rooms are therefore wedge shaped and have half as much room again as a regular room. One year my wife & I each had
ECVs, and I was still able to do a figure of eight in the room without bumping any of the furniture or my wife's
ECV which was parked up for recharging!!!
The ferries to MGM and Epcot are wheelchair/ECV accessible. Both parks are just about within walking distance, though I wouldn't want to do either in a manual chair because of the slopes over the bridge on the way to Epcot, and the greater distance to MGM.
None of the main or quiet pools have 'handicap' access. The nearest pool if you can't get in & out of the water in the regular way, would be Storm along Bay at Yacht & Beach Club just across the water, which has 'bump steps' rising out of the water, useful if you have good upper body strength.
Andrew