Base for RDI Structural Porch Post

Contractor Rebates
(3 reviews) Write a Review
$21.99 - $62.99
3.00 LBS
Calculated at Checkout

RDI Base Support Mounting Kits needed for Porch Post Installation

The bases are required to attach to the RDI porch posts. The wind uplift kit which is the hurricane 4” or 5" base and it can be mounted from the outside w/o jacking up the roof.  The bases are not included in the porch post. Choose from 2 base kit options: a Standard Base Kit and a Wind Uplift Base Kit. The Wind Uplift Base Kit utilizes a one-of-a-kind Hurricane Piston Lock that prevents wind uplift (up to 2,800 lbs.) and eliminates roof jacking during installation. 

Whats included in the 4" or 5" Wind uplift base kit:


Whats included in the Standard 4" or 5"  kit:


(this option is used if you are able to jack the roof up by 2”)

Click HERE for RDI Structural Porch Post Options:

Click HERE for installation:


4" Standard


4" Wind Uplift



5" Standard



5" Wind Uplift



Universal Gasket included with each kit


3 Reviews Hide Reviews Show Reviews

  • 5

    Posted by Henry on Aug 6 2022

    I purchased the base to mount a turned 5" post on the porch. The installation was easy as the inside support post and the outer sleeve fitted securely to the molded base after raising the porch roof about two inches using a car jack and beam. The whole process of removing the old post and installing the new post with the mounting base took about 45 minutes per post. I feel that the posts are fastened well to the porch deck and roof and highly recommend this product.

    The one thing that I was confused about is the use of a supplied plastic plate to be used only if attaching the mount to a wood deck that has been treated. Even though I did not have to use it I could not find a combination of mounting holes punched through it to align with the post mount it came with.

  • 4
    Great product worked fine

    Posted by Sam G on Aug 9 2021

    Gave it a 4 because the plastic gasket holes did not match the holes on the metal base. I had to drill new holes.

  • 4

    Posted by Bill on Sep 8 2020

    Overly expensive, but it does the job very well. My shipment included two sets of everything. Is this normal?

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