How to Install a Flagpole (Part 2 of 6)
This tutorial assumes you have found the right flagpole for you and are ready to dig the hole and get started with installation.
In this case, we have an ESS20B31-02. This means that the flagpole is 20 feet tall with a .125 wall and a 3" butt diameter. The wind zone is this area is mild and this commercial grade aluminum flagpole has plenty of tolerance to handle the stress of the flag. We upgraded the flagpole with various parts including a revolving truck. But we'll cover that in later parts of this tutorial series.
If you are still looking for a flagpole, click here for a great guide!
Things to keep in mind when preparing the holeHow do you figure out what size hole you need to dig for the flagpole? How many bags of concrete will you need? How much sand (if you are doing a standard in-ground installation with a corrugated foundation sleeve)? Do you need to worry about electrolysis or galvanic action? Believe it or not, all of these questions need to be answered before you dig your hole. But we have some clever ways of figuring it out.
|Video has a rigid PVC sleeve. This is a STEEL SLEEVE|
Making a professional pedestal out of a Sonotube form
Once you have dug the hole with the correct dimensions, even all the way around, it is time to cut the sonotube. You want the sonotube to be about 6” deep. For back-fill around the base of the flagpole, garden plants require 6 inches but grass only needs about 3 inches. With a string you can make a guideline and saw the cardboard tube. This tube acts as a form at the top of the foundation. This will also allow you to plant grass, or other plants around the pedestal base.
Making concrete Foundation
It is good to start small. Add a little bit of water at a time. As you add the water, fold the concrete carefully as to not create too much dust. If the concrete is clumpy, add more water. If there is a layer of water across the top, you've added too much. The rule of thumb is about 5 pounds of water to an 80 pound bag of concrete mix. But this will very on the type of mixture you have.
Pouring concrete and leveling
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