Mega-Tandem 3-in-1 Wall System


Belgard’s commercial Mega-Tandem™ retaining wall system is an innovative system with ultimate design flexibility that can be used to create attractive curved or straight retaining and freestanding landscape walls. The Mega-Tandem wall system also provides the natural appearance of chiseled stone making it great for use in a wide range of commercial hardscape projects.

Please refer to this page for information regarding California’s Proposition 65.



12 x 24 x 3

12in Wall Depth Connector

27in Wall Depth Connector

46in Wall Depth Connector


6 ¾ x 18 x 3


Blended Colors

Contact your local Belgard representative for available colors.

Technical Resources

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Mega-Tandem Box Culvert Through Wall Faceapplication/pdfapplication/acad
Mega-Tandem Capping Detailapplication/pdfapplication/acad
Mega-Tandem Corner Detailapplication/pdfapplication/acad
Mega-Tandem Corner with Geogridapplication/pdfapplication/acad
Mega-Tandem Curve Wall Detailapplication/pdfapplication/acad
Mega-Tandem Drain Pipe Through Toe Slope Detailsapplication/pdfapplication/acad
Mega-Tandem Drain Pipe Through Wall Face Detailsapplication/pdfapplication/acad
Mega-Tandem Drop Structure in Reinforced Zoneapplication/pdfapplication/acad
Mega-Tandem Fence With Sleeve-Itapplication/pdfapplication/acad
Mega-Tandem MSRW Component Detailsapplication/pdfapplication/acad
Mega-Tandem Pipe Outlet Through Wall Faceapplication/pdfapplication/acad
Mega-Tandem Potential Groundwater Intrusion Sectionapplication/pdfapplication/acad
Mega-Tandem Reinforcement Connection Detailapplication/pdfapplication/acad
Mega-Tandem Sidewalk Above or Below Wall Sectionapplication/pdfapplication/acad
Mega-Tandem Typical Base Leveling Pad Detailsapplication/pdfapplication/acad
Mega-Tandem Typical Cross Section With Parallel Utilitiesapplication/pdfapplication/acad
Mega-Tandem Typical Cross Section With Slopeapplication/pdfapplication/acad
Mega-Tandem Typical Drainage Swale Cross Sectionapplication/pdfapplication/acad
Mega-Tandem Typical Excavation Oversizing Sectionsapplication/pdfapplication/acad
Mega-Tandem Typical Fence Cross Sectionapplication/pdfapplication/acad
Mega-Tandem Typical Gravity Wall Cross Sectionapplication/pdfapplication/acad
Mega-Tandem Typical Guide Rail Sectionapplication/pdfapplication/acad
Mega-Tandem Typical Reinforced Wall Sectionapplication/pdfapplication/acad
Mega-Tandem Typical Shoreline Cross Sectionapplication/pdfapplication/acad
Mega-Tandem Typical Step Up and Down Detailapplication/pdfapplication/acad
Mega-Tandem Typical Terraced Cross Sectionapplication/pdfapplication/acad
Mega-Tandem Unit Connection Detailapplication/pdfapplication/acad
Mega-Tandem Vertical Control Jointapplication/pdfapplication/acad
Mega-Tandem Wall Abutting Structureapplication/pdfapplication/acad
Mega-Tandem Cross Section with SRW Capapplication/pdf

Project Profiles

Mega-Tandem MSRW System - MN Vikings Training Camp Case Studyapplication/pdf
Mega-Tandem Project Profile - A system approach to a single solutionapplication/pdf
Mega-Tandem Project Profile - Traylor Residenceapplication/pdf

Data Sheets

Mega-Tandem Data Sheet - Nationalapplication/pdf

Installation & Maintenance Guides

Mega Tandem Install Instructionsapplication/pdf
Estimating Chart for Geosynthetic Reinforcement with Mega-Tandemapplication/pdf


IAPMO Report on Mega-Tandemapplication/pdf

Guide Specifications

Mega-Tandem Specification 0