Fence Post Calculator

Use the Fence Post Calculator to estimate the amount of Secure Set Mix & Pour product you will need for post or pole installation project.  

How to Use the Calculator

Square Posts

Select Square and input the number of posts,  post dimensions and hole depth.  The calculator will help you determine hole diameter and amount of product to use.

Round Posts

Select Round and input the number of posts, post diameter, hole width and depth.  

The hole width should be your pole diameter plus 4 inches for poles 2 3/8″ and larger, then round to the nearest whole number. 
Example:  2.375 + 4=6.375  Round to nearest whole number = 6.

1. How many fence posts are you installing?

2. What type of fence post(s) are you installing? (Select one)

3. What is the width and length of the post(s)?

4. What is the diameter of the posts?

inches

The size of your post holes should be

inches wide and

inches deep(see below)

Already dug your post holes? Enter a new size in the fields above.

Please note: width and length of your post is asking for the ‘A’ and ‘B’ side of your post. **Not the height of your post. For example: 4×4 or 6×6 Depth calculation is made based on standard 8′ fence post. The depth can be changed for other heights. Line posts should be buried 1/4 of the overall height of the post and corner/gate posts 1/3

Installation Guidelines for Various Structures

  • Antennas: should be buried 25% in the ground (depending on top load)
  • Batting cages: posts should be buried 1/3 in the ground.
  • Birdhouses: should be buried 25% in the ground (depending on top load)
  • Decks (recommended no higher than 5ft. above ground): should be buried 1/3 in the ground.
  • Flagpoles: should be buried 10% plus 2 ft. in the ground.
  • Gazebos: posts should be buried 1/3 in the ground.
  • Lamp posts: should be buried 25% in the ground (depending on top load)
  • Mailboxes: should be buried 2 ft. or 25% in the ground
  • Park benches: should be buried 50% in the ground.
  • Pergolas: posts should be buried 1/3 in the ground.
  • Pole barns: posts should be buried 1/3 in the ground.
  • Ranch fencing: posts should be buried 1/3 in the ground.
  • Retaining walls: posts should be buried 1/3 in the ground.
  • Road/traffic signs: should be buried as per municipality guidelines
  • Sail shades: posts should be buried 1/3 in the ground.
  • Small satellite dishes: should be buried 2 ft. in the ground.
  • Street light poles: should be buried as per municipality guidelines2
 

Large Pole Calculator

Large Pole Calculator Thumbnail

Use for Utility Poles, Street Lights, and Stadium Light Poles

Download this Excel spreadsheet to calculate the amount of Secure Set Mix and Pour needed to fill large holes. These may include but aren't limited to utility poles, street lights, and stadium light poles.