What do you do when you have doubled or paired posts at an
interior 90 degree corner location? This requires some unique framing
and bracing techniques and connector hardware if you plan to secure the
posts to the deck joist structure.
Because adding a second rail post at an inside corner means you are
bolting on to an adjacent joist or rim joists you have to add some
significant blocking into the deck frame.
Here is a typical framing scenario at an inside corner for two posts and the hardware you will need.
Click Image For Larger View
Required Hardware And Cost
Building your deck railing in this manner is less common but you do
see it occasionally. The reason is because it makes for a more
complicated corner for the adjacent railing to connect together.
In addition to some good carpentry skills and labor, you have to
get a lot of hardware and install it all properly. The end result though
is a very strong double corner post arrangement.
This way of installing double corner posts can be well beyond the
ability or desire of most people to install all this hardware, or notch
the decking boards around each post.
Some don't want to have their posts and railing off set away from the corner.
The other issue for some is the vulnerability of the wood posts
to moisture damage over the years because of direct wood on wood
If you fall into this group, there are simpler ways to
install strong deck rail posts at inside corners that will also give you
a high quality and beautiful looking railing.
Take for example this low profile internal wood railing post anchor shown here.
At less than twenty bucks, it can be used in code
compliant residential rail applications when installed according to the
manufacuturer's engineering guidelines.
A Simple And Cost Effective Option
This is a potential solution for new wood deck railings, replacing
rotted railing posts, or as support posts for pergolas, gazebos, decks,
Then watch this video of a surface mount wood post anchor that has been tested for use with wood deck railings and costs less than $20 with all the hardware you will ever need and it covers all the possible situations described above.
So there you have it.
A thorough explanation of building traditional wood railing for decks and alternative solutions for great looking deck railing. You decide which is right for your specific project.
Industry Expert, Ken McDonnell of Post Protector, an industry favorite solution for preserving and protecting wood posts from rot and decay shares his knowledge with DecksGo visitors. This is a must read! Find out...
Become a Guest Host. If you are a Pro and have something valuable to share just contact us.