*This project video and walkthrough provided by Keystone Retaining Walls and serves as a general explanation of how to build this project. Measurements and products may slightly vary when using RCP manufactured units. Please contact us if you have any questions.
This 30"x30" column with light is an intermediate Do-It-Yourself project. If you have no experience working with electrical, RCP Block & Brick suggests hiring a certified electrician when running all electrical wires and making electrical connections. TIP: Choosing a solar powered light will eliminate the need for any wiring.
Mark a 42" x 42" column location and excavate 12" deep. Compact the soil. Add 6" of granular base material in 3" increments. Compact and level base to avoid settling and provide a solid base for building the column.
If no electricity is present at the site of the column, you will need to provide power to the site. You will need to dig a trench and run an underground electric cable. If you do not have experience working with electricity, RCP Block & Brick suggests hiring a certified electrician.
TIP: Using a solar powered light will eliminate the need for running power to your column.
Center the first course on the base material within the excavated area and around the electrical wiring. Be sure to check to make sure the first course is perfectly level and make adjustment using a dead blow hammer.
Each course will use (4) Large Units and (4) Small Units.
Once the first course is leveled and in place, build the next course of blocks exactly like the first, but rotated 90 degrees. Continue to build the column, alternating and leveling each course, shim if necessary. Secure each course with outdoor concrete adhesive.
It is suggested that you dry fit each course of blocks before you apply the construction adhesive to ensure that you have the correct block, orientation & fit.
After 9 Courses (first of which will be buried), it is time to affix the light.
Center the first course of caps on the column, allowing for a 1" overhang. Secure using masonry adhesive. Then position the second course of caps on top of the first. Small cuts may be needed to make room for the electrical wiring.
Make electrical connection between light and underground cable.
Affix light to top of column using manufacturer suggested connections.