Baldwin 6501000D Mortise Wood Door Thick Door Kit

It's the parts kit that adapts a Baldwin Estate Series mortise lock to a thick wood door. The lock itself is sold separately; the 6501000D supplies the longer components needed once the door is thicker than the standard range the lock ships for, covering 1-7/8 inch to 2-1/4 inch doors. Baldwin refers to this as a thick door kit for the 1-3/4 inch to 2-1/4 inch door size.

Yes. At 2 inches you're inside the 1-7/8 inch to 2-1/4 inch door range the 6501000D covers, which is past the 1-3/4 inch standard a commercial or residential mortise lock is normally set up for out of the box. Without the kit the spindle and screws won't reach through the door.

No, and you don't need it there. The door range for the 6501000D kit starts at 1-7/8 inches. A 1-3/4 inch door is the standard thickness Baldwin Estate mortise locks are already built for, so order the lock on its own.

2-1/4 inches is the ceiling. Past that the kit's components run short and there's no longer option in this part number, so a door thicker than 2-1/4 inches needs a different lock solution entirely rather than this kit.

Baldwin lists it as residential. It's an Estate Series accessory, aimed at heavy entry doors on homes and high-end residential work rather than institutional or high-traffic commercial openings. Property managers spec'ing a multi-family or office opening should be looking at commercial mortise hardware instead.

It's an Estate Series part. Use it with Estate Series mortise locks on wood doors. Baldwin's other collections use their own trim and spindle sizing, so match the collection before ordering.