From Route 24:

Florham Park Exit 2B (Route 510 East/Columbia Turnpike). Continue on Columbia Turnpike East just past the intersection of Ridgedale Avenue and the Little Red School House on your left. Blue building #134

From The Lincoln Tunnel:

495 West/Route 3 West, to Route 46 West, to Route 80 West, to Route 287 South, to Exit 37 (Route 24 East), to Florham Park exit 2B. Follow directions from Route 24, above.
 

From George Washington Bridge:

Route 80 West to Route 287 South to Route 24 East, then follow directions from Route 24, above.

From North Jersey:

NJ Turnpike or Garden State Parkway to Route 80 West, then follow directions from Route 24, above.

From South Jersey:

Garden State Parkway to 78 West (you must take 78 East toward Newark Airport and make a u-turn at the first exit in Hillside) from 78 West, take Route 24 West and follow directions from Route 24, above.

From The West:

Route 80 East to Route 287 South to Route 24 East and follow directions from Route 24, above; or follow Route 78 East, Route 287 North, to exit for Route 510 East.