DIY! How to Build a Concrete Block Bench
Want to add an impressive seating area to your backyard? Build a stone bench to enhance your outdoor space, by following these easy instructions. In just a few hours, you will have a unique and attractive new backyard feature.
This project measurements reference Stonewall II Concrete Blocks. Other block products may be utilized. Contact your dealer for more information on products that would complement a bench).
PROJECT TIME ESTIMATE: 2-3 hours
Four, 12” stakes
STEP 1, PREPARE THE SITE
Stake out a 2’ x 9’ rectangle. Use one of your stakes as your starting point and hammer it into the ground. Measure 9’ in the long direction and hammer in another stake. Measure 2’ at a 90 degree angle from the two stakes already hammered in the ground. Set both stakes and make sure they are 9’ in between. To check for square, measure diagonally from stake to stake until the two measurements are the same.
STEP 2, COMPACT AND LEVEL
Once you have your area marked out, dig approximately 4” into the soil. Place and compact 3” of 3/4" Minus Gravel as a leveling
pad for the base course of your bench.
STEP 3, SET THE BASE COURSE
To set your base course, lay your first stone 1” below finished grade, and level front to back and side to side. Start with a large and small and large and small, side by side to make a 20” x 20” column base. Measure 5.5" in from one side, and place a large stone, then a small stone, alternating until your bench is 5' 2.25". Then, build another 20" by 20" column base. Fit for alignment and check for level.
STEP 4, STACK THE COURSES
Place a continuous bead of caulking on the blocks below. Stack additional courses, ensuring you have a running bond, so the block lines do not match the lines below. Check for level and adjust as necessary. Stack additional rows on the square to a maximum of five rows high.
Stack additional rows on the bench to a maximum of three rows high.
STEP 5, SECURE THE TOP COURSE
Secure the capstones. Use a generous amount of SRW adhesive to glue the top caps and five bench caps.
Not sure why you need to glue block wall caps? Read about block adhesive here.
Questions about this project? Contact Basalite and we'd be glad to help you with your project.
Build a matching planter box!
Click here for the easy instructions