L Shape Retaining Walls

L Shape retaining walls are a cantilever type. They are manufactured using pre-cast concrete and deigned to BS EN 1997-1:2004-Eurocode 7 – Geotechnical design with the UK National Annex and BS EN 1992-1 :2004 – Eurocode 2 – Design of concrete structures with the UK National Annex.

Precast concrete L shape walls are designed to retain material. However, to resist overturning and sliding with a factor of safety of 2 for overturning and 1.5 for sliding the wall units need to be anchored into a plain or reinforced foundations.

We highly recommend a structural engineer designs the wall or we can do it for you with our engineers.

The reinforcement cover is 45mm and a C50/60 concrete is used in the manufacture of the wall units. The walls are suitable for the following exposure conditions. XC3/XC4, XD3, XS3, XF4 as detailed in BS8500-1:2006.

L shape retaining walls are an economical solution for many projects. Having said that we can give you a full analysis of the best type of retaining wall from your enquiry.

Contact us and let’s see how we can value engineer your project using the best solution.

Precast L Shape Retaining Walls Design Guide

Precast L Shape Retaining Wall
Precast L Shape Retaining Walls

The design uses well graded, granular backfill with the back of the wall having drainage to relive hydrostatic pressure.

The design table above are Indicative designs for L shape retaining walls based upon a base material with allowable bearing pressure of >200kPa.

All indicative information presented in this table is based upon assumed loading and ground conditions and may be subject to change following detailed, site specific design.

Standard L Shape Units

L Shape Dimension Table

Before You Request a Proposal


The foundation size and shape will depend on the ground conditions and load case.

The L shaped units are then bolted down onto the foundation using resin anchor bolts.

Without a design your retaining wall can fail.

We can offer you a foundation design.

Information we need to give you our best service

  • Heigh of L shape unit – See the table
  • Number of units required
  • Number of corner units – Internal corner units are available
  • Do you require holding down bolts y/n
  • Do you require lifting brackets and shackles to offload and place  y/n
  • Do you require a foundation design y/n
  • Your post code for delivery

Complete the request form, and we will send your requirements to our supply chain to get the best price for your requirements in your area.

L Shape Best Price For Your Location Request Form

Compare Prices of Retaining Wall Types

Which retaining wall type is the most economical to build? We have written an article on retaining wall price comparisons. The article details the types of retaining wall and gives you a price of each type for comparison. 

L Shape Retaining Walls Design Service

The design of a retaining wall requires knowledge of the retaining material, the water table, the ground bearing capacity and any site constraints. The design requires a ground investigation and a structural engineer to ensure the design is fit for purpose.

We offer a full design service from carrying out the ground investigation to final working drawings.

Other Retaining Wall Types

If You Are Not Sure Ask Us a Question

Complete the form below to ask a question or request support. I normally answer questions and respond to requests as soon I notice the message.

I can give you direction and support with anything described on this site.

My background is civil engineering from building a civil engineering construction company from 1990 to 2005. I have practical experience of building a large range of structures.

Watch the Video

Youtube channel