Retaining Wall Contractor Program

Print Certification Requirements


Segemental Retaining Wall with Curve

Summary of Requirements - Certified Wall Installer:

  • Attend an Allan Block Contractor Certification Course

  • Complete & pass the written test

  • Build an Allan Block wall with a minimum height of 3 ft (0.9 m) and a minimum of 300 units (full size or equivalent)

  • Have an AB Sales Representative inspect the wall

  • All projects are counted by the number of full size Allan Block units used. If smaller sized units are used, the number of blocks must be equivalent to full size units. Example: 2 AB Jumbo Juniors = 1 AB Classic (full size unit).

  • Contractors that build their first wall with either the AB Collection or the AB Europa Collection will become Level One Certified. Contractors who build their first AB Fieldstone Collection wall will become AB Fieldstone Certified.



Hands-on training on building walls

Summary of Requirements - Experienced Wall Installer:

  • Has completed Level One Certification

  • Has completed 5 additional walls that meet the guidelines and requirements listed above

  • Allan Block sales representative has inspected each submitted wall

  • All projects are counted by the number of full size Allan Block units used. If smaller sized units are used, the number of blocks must be equivalent to full size units. Example: 2 AB Jumbo Juniors = 1 AB Classic (full size unit).



SRW Wall with terrace using AB Collection AB Ashlar Blend

Summary of Requirements - Master Wall Builder:

  • Has completed Level One Certification & Experienced Certifications

  • Has completed additional projects that meet the 25,000 units (full size units or equivalent) requirement listed above or 10 walls with an average of 1000 units each

  • Allan Block sales representative has inspected each submitted wall project

  • All projects are counted by the number of full size Allan Block units used. If smaller sized units are used, the number of blocks must be equivalent to full size units. Example: 2 AB Jumbo Juniors = 1 AB Classic (full size unit).



Terraced Retaining Wall with curves

Disclaimer: Becoming a certified contractor signifies that a contractor has been to an Allan Block Certification class and has been trained. Allan Block does not guarantee the performance of any wall constructed by a certified contractor.



AB Certified Contractors Build More Retaining Walls & Get More Jobs

The Allan Block Contractor Certification Program is designed to give contractors the proper training and tools to ensure top quality retaining walls are built. As a leader in the industry, Allan Block Corporation has developed these tools and training programs to help contractors get the knowledge and the resources they need.

With the help of our vast network of trained Allan Block representatives, thousands of professionals have already taken advantage of our installation training, technical support, and the many tools we have available to help them plan, design and build with Allan Block products.

This three-stage program blends the details of wall design and the experience of wall construction to help us define each contractor’s individual level of ability and service. This on-going certification program has also helped us provide a better understanding of how and why stackable structures work so well.

Working through the levels of the Allan Block Contractor Certification Program, we will show you why training can be your best resource for high quality engineered wall construction. Click on the levels below to view the requirements:

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AB Contractor Binder:Resources to Support Building Retaining Walls and Fences

How To Become A Certified Wall Installer

The first step in the program is Level One, the Certified Wall Installer. To become one, a contractor must first attend an Allan Block Contractor Certification Training Course. This course covers the following topics:

AB Certificate
  • The advantages of the Allan Block product line

  • How Allan Block products work

  • Basic principals of wall design

  • How Allan Block & geogrid reinforcement work together

  • Basic design methodology

  • Why walls fail

  • Wall estimating tools

  • Proper methods for constructing an Allan Block wall.

  • Hands-on participation building walls with AB products

At the completion of the course you will be asked to take a written test. This test must be completed and turned in to your local Allan Block sales representative. Once this has been done, the last step is for you to build an Allan Block wall that has a minimum height of 3 ft (0.9 m) and is a minimum of 300 units (full size or equivalent). Notify your local sales representative of the completion of these requirements so that your local sales representative can submit the appropriate paperwork to Allan Block Corp. to receive your Allan Block Certified Wall Installer Certificate.

Disclaimer: Becoming a certified contractor signifies that a contractor has been to an Allan Block Certification class and has been trained. Allan Block does not guarantee the performance of any wall constructed by a certified contractor.

How To Become An Experienced Wall Installer

SRW Wall with terrace using AB Collection AB Ashlar Blend

The second step in the program is the Experienced Wall Installer. Although the options of what you can do with Allan Block products are without limit, there are a few basic concepts that must be mastered to move into the experienced level. To become an Experienced Wall Installer you must build 5 additional walls that meet the specifications listed below:

All 5 walls submitted must comply with the following:

  • Walls comply with local building codes

  • Walls constructed meet industry tolerances

  • Detailed project proposals were submitted and pre-construction meetings were held for each project

  • All walls built have a minimum height of 3 ft (0.9 m) and a minimum of 300 units (full size or equivalent)

  • AB Tech Sheet #797 – Caring for Your Retaining Wall was left with the property owner on each project

  • Material lien waivers were supplied to the property owner and/or general contractor at completion of construction for each wall

  • Geogrid reinforcement was used on a minimum of 3 of the 5 submitted walls

  • Stamped drawings from a local engineer were used on a minimum of 3 of the 5 submitted walls

  • Each of the following conditions must be covered on at least one of the 5 walls submitted:
    • Curved wall (inside or outside radius)

    • Step up or step downs (at base and top of wall)

    • Slopes above the top of the wall

    • Terraced wall

    • Water management detail (example: drainage swale)



Notify your local Allan Block sales representative of any AB walls you would like submitted toward your Experienced Wall Installer certification so that your local sales representative can submit the appropriate paperwork to Allan Block Corp. to receive your Allan Block Experienced Wall Installer Certificate.

How To Become A Master Wall Builder

retaining wall using step downs in the AB Collection from Allan Block

The third and final step in the program is the Master Wall Builder. Contractors that reach this level have both the knowledge and the skills to build top quality Allan Block walls. Set apart from other wall installers, the Master Wall Builder is more widely accepted and sought after by the engineering community.

To become a Master Wall Builder you must build Allan Block projects totaling up to a minimum of 25,000 units (full size or equivalent) or a total of 10 walls with an average of 1000 units (full size or equivalent). Unit count is accumulative. Any walls built to satisfy the Level One and Experienced requirements count toward your Level Three requirement. Each of these walls must meet the following specifications:

All of the walls submitted must comply with the following:

  • Walls comply with local building codes

  • Walls constructed meet industry tolerances

  • Detailed project proposals were submitted and pre-construction meetings were held for each project

  • All walls built have a minimum height of 3 ft (0.9 m) and a minimum of 300 units (full size or equivalent)

  • AB Tech Sheet #797 Caring for Your Retaining Wall was left with the property owner on each project

  • Material lien waivers were supplied to the property owner and/or general contractor at completion of construction for each wall

  • Geogrid reinforcement was used on a minimum of 70% the submitted walls

Stairs built into a retaining wall using AB Europa Collection
  • Stamped drawings from a local engineer were used on a minimum of 70% of the submitted walls

  • Each of the following conditions must be covered on at least 70% of the walls submitted:
    • Curved wall (inside or outside radius)

    • Step up or step downs (at base and top of wall)

    • Slopes above the top of the wall

    • Terraced wall

    • Water management detail (example: drainage swale)



  • A letter of reference from a minimum of 2 general contractors/property owners/developers. The AB sales representative is responsible for obtaining these letters directly from the general contractor/property owner/developer and must submitted to Allan Block Corp.

  • Notify your local Allan Block sales representative of any AB walls you would like submitted toward your Master Wall Builder certification so that your local sales representative can submit the appropriate paperwork to Allan Block Corp. to receive your Allan Block Master Wall Builder plaque with reward.

Allan Block Rewards



Certified Allan Block Contractors Reap Rewards

Allan Block recognizes AB Certified Contractors for their commitment to building top-quality Allan Block projects with the AB Rewards Program. The more Allan Block walls you build, the more rewards you can receive. Every AB Certified Contractor is eligible for AB Rewards. Learn more...