Ideally you would have backing in the wall to nail this trim to sides especially but you could also attach it to your sheathing provided it is a minimum of 7 16 ply osb.
Attaching a 2x4 fence post to hardy board siding.
Supports tightly against the fence boards.
2 place the siding on two 2 by 4s so that the mark is between the boards for support when the siding has not been installed.
Nail the siding between three quarter and one inch from the top of the siding starting three eighth of an inch from the edge of the plank.
Drill pilot holes at each mark one quarter to one half inch deep to make it easier to insert screws and prevent cracking the siding.
Install the posts top and bottom rails and.
However some homeowners would also like to attach a mailbox to the hardiplank surface.
Without it each board s end grain would be exposed to the weather and the life of the fence would be shortened.
The cap rail is an important part of this fence.
Skip to the middle of the plank and work your way to the start of the plank at the right driving a nail into each stud.
6 align the bracket holes with the pilot holes in the siding.
Mark the siding where you want to drill the hole.
This siding choice is made of fiber cement which is extremely durable and long lasting to weather the cold and hot seasons.