For stair rails or an area with a code requirement of 42 inches, the patented design of the Plumb-Perfect Adjustable Post Mount will still work for you! After making the Plumb-Perfect Post Mount plumb, slide in the Adapter Block and secure it with its included screws. Then you're ready to slide over the taller post sleeve to continue installation. As is, the post mount will accommodate a 4 inch to 4-1/2 inch post sleeve.

Using wider vinyl post sleeves? Purchase the Sleeve-Over Block to create a wider foundation for post covers.