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DIY! How to Build a Concrete Block Bench

  
  
  

stone 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

TOOLS NEEDED

Four, 12” stakes
marking paint
trowel
rubber mallet
wheel barrow
gloves
knee pads
safety equipment
shovel
level
hand tamper
caulking gun
SRW adhesive
string line
tape measure


STEP 1, PREPARE THE SITE   bench base course

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.

 

 

compact and level base course

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.

 

 

 

 

 

how to build a stone 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.





concrete block layering

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  Bench Project Sheet5 

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.

 

 

 concrete block planter boxBuild a matching planter box!
 Click here for the easy instructions

     

         Get Your DIY Planter Box Instructions No

 

 

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