You could use hardie trim cement miratec borate treated fiber smarttrim lp or probably a few other products that would be similar.
Nailing into hardie plank siding.
Pick out stainless steel or hot dipped galvanized nails size 6d 1 1 2 inch long siding nails and 2 inch long siding nails in the.
Any lower and you might see a few nail heads poking through the bottom of the next board any higher and your siding is likely to be loose and could even rattle in the wind.
Moderate contact or maximum 1 8 gap and caulk the joint blind nail.
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.
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.
How to install hardie siding with a nail gun.
From the ends of the plank.
Blind nailing preferred installation james hardie prefers and recommends installation of hardieplank lap siding by the blind nailing technique such that fasteners are hidden by the course above.
Use a pneumatic staple gun to drive for staples.
After attaching the taps on the back you can start attaching the hardie trim to the side of your building.
It can be a local hardware store or one of the larger chain stores.
Place wood supports across two sawhorses before resting the siding on the sawhorses.
From the top edge and no closer than 3 8 in.
Otherwise the board siding may snap during drilling.
Using 6d or 8d stainless or.
Measure and mark the placement of the hole on the siding with a professional grade crayon.
How to choose nails for hardiplank.
Attach flat tabs at the back of the hardie trim before installing.
Fastening and spacing hardiplank siding with ez line face nail.
Learn how to nail hardieplank lap siding with this instructional video from james hardie.
Go to the nail section in any hardware store.
Nail 1 down from top of plank do not use jh logo for nailing guide fasten 16 24 o c.
How to drill through hardieplank siding.
Moderate contact or maximum 1 8 gap and caulk the joint nail 3 4 1 up from bottom of plank fasten 16 o c.