Posts from the ‘Fence tips’ Category

Protecting metal components from ACQ pressure treated wood.

It is important to understand that the corrosive nature of ACQ treated wood comes from electrolysis, not a low PH(acid) quality of the lumber. One of the easiest ways to use a non ACQ rated metal component is simply to insulate it from the copper in the treated wood with an adhesive flashing barrier. This interrupts the conductivity between the steel component and the copper in the wood. This is actually a building code approved method for when a hanger or other engineered component that is unavailable in a resistant form must be used. In the photo you can see how I have bedded the post with a strip of Vycor “deck protector and then scored the outline of the hinge to remove the excess flashing around the hinge. You can learn more about ACQ and electrolysis in my related post below.


Fence bracket install tips

When attaching rails to a fence post  it is important to use a fastener that will survive the corrosion present when using pressure treated ACQ wood. My previous post on ACQ goes into detail about this corrosion.  When attaching an angled rail that will not fit the Simpson FB24Z  bracket I like to use a stainless screw like the one pictured here. The increased pull out resistance afforded by the screw is useful in keeping the rail fast during wind or other stressors.  A typical steel screw will become brittle and frequently snap or shear off in this application, even ACQ rated screws. I also use the stainless screws on the upper fence bracket for this same reason.fence bracket install2

I prefer to use a strap nailer like the one pictured below to attach the lower brackets where the pull-out force is not as great. This gun shoots a 16d 2″ hard galvanized nail. The heavy thickness of this nail and it’s hard galvanized coating ensures it will resist the corrosion present from ACQ treatment. Nail steel is also much more elastic than screw steel and far less likely to become brittle and shear the way a screw might. Careful choice of fasteners is another small detail in constructing a long lasting fence project. There are a wide array of materials available, choosing the correct one for your specific application will ensure a successful install.

Proper techniques are essential to ensure long life of fence posts


The fence post pictured is only 7 years old, this fence had many years of life left except for the breaking posts. Even pressure treated posts can be vulnerable to decay if not installed properly. Excluding the direct contact of soil to the post is an important part of a good installation. Decay is not the only enemy, when water is allowed to pool right where the post meets the concrete, caustic chemicals in the concrete are able to weaken the post.

I always make sure to create a small pyramid of concrete around the base of the post to route water away from it. this moves the exposed post a couple of inches above the grade of the surrounding soil as well. Most posts are 4×4 in size but, MBA Deck and Fence uses a special 5×5 post which is extra strong and resists warping too.