Building a Post

How-to Sheet #220
Building Posts/Pillars
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Building a post

Video: How to Build a Post/Pillar


Building on Pavement

Place first row of post blocks

Install First Course


Square up Post Blocks

Square Up Post Blocks


Alternate the Patterns of the Post Blocks

Alternate the Patterns


Stack the Next Row of Post Blocks

Stack the Next Course


Secure Post Caps with flexible concrete adhesive

Secure Post Caps with Adhesive


Building on Soil

Set Your Post Layout

Set Your Post Layout


Dig the Foundation Pad

Dig the Foundation Pad


Compact the Base

Compact the Base


Level the Base

Level the Base


Build the Base Course

Build the Base Course


Offset the Patterns

Offset the Patterns


How to Build A Post/Pillar

Posts/Pillars create beautiful accents to any patio wall project. Use them as entry monuments, light posts or as an architectural feature to your landscape. These basic steps will help you learn how to build a simple post/pillar either on an existing patio or on soil.



Installing on Existing Patios or Pavement

If you will be building in an area that does not have an existing patio or pavement, see the instructions below on how to build a wall panel on soil

Courtyard Corner For Building Posts

Corner Block


Post/Pillar Course Patterns

Post Layout Patterns




Step 1: Layout

Determine the location and placement of the post/pillar.

Step 2: Building your Post/Pillar

Install the first course with 4 Corner Blocks with the long sides facing out. Square up and level the blocks. Use shims if needed to help level the blocks if the existing surface being built on is not level.





Step 3: Continue Building your Post/Pillar

Continue stacking courses, alternating between the patterns shown to offset the seams from the course below until the desired height is achieved.


Do not stack the blocks up using only one pattern (seams should not create a straight line the full height of the post/pillar).

Step 4: Finish Your Post/Pillar

Finish the post with two Post Caps. Secure the Post Caps in place with a bead of flexible concrete adhesive along the outside edge of the top course of Corner Blocks and then set the Post Caps in place.

Taller posts/pillars will require added stability.See How-to sheet #140: Building Taller Posts/Pillars for more information.




Installing on Soil

Step 1: Mark Your Layout

Foundation Pad Layout

Foundation Pad

Determine the location of the post/pillar and lay the first course of block to establish where to dig the foundation pad.

Step 2: Build Your Foundation*

Mark the location of the post/pillar with a shovel, remove the blocks and dig a hole 24 in. (600 mm) square, 4 in. (100 mm) deep hole.


*NOTE: The soil beneath the foundation pad must be a good quality compactable material. If soft soils are encountered, they will need to be removed and replaced with additional base rock. A good foundation will ensure a stable post/pillar for years to come.

Step 3: Fill

Place 4 in. (100 mm) of base rock in the hole and compact using a hand tamper.


Road/Paver Base

Road/Paver Base

Wall Rock

Wall Rock

Base Rock: Using the proper materials to create the base foundation for the panels is important when building on soil. We recommend using a compactible base rock material that is gravel in varying sizes of angular or smooth aggregates similar to the wall rock used in retaining walls or a road/ paver base type material.

Step 4: Level

Courtyard Corner For Building Posts

Corner Block

Level the foundation pad. Make adjustments as needed by adding or removing the base rock.

Step 5: Build

Install the first course with 4 Corner Blocks with the long sides facing out. Square up the blocks, tamp into place and level.

Post/Pillar Course Patterns

Post Layout Patterns

Step 6: Continue Building your Post/Pillar

Continue stacking courses, alternating between the patterns shown to offset the seams from the course below until the desired height is achieved.


Do not stack the blocks up using only one pattern (seams should not create a straight line the full height of the post/pillar).

Step 7: Finish Your Post/Pillar

Finish the post/pillar with two Post Caps. Secure the Post Caps in place with a bead of flexible concrete adhesive along the outside edge of the top course of Corner Blocks and then set the Post Caps in place.



Helpful Tips

Additional Information:



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