Rebar for Retaining Walls
DIN 488 / EN 10080 compliant B500B bar, mesh and cut-and-bend reinforcement for cantilever, counterfort and basement retaining walls — vertical and horizontal reinforcement, starter bars and construction joints supplied with full Mill Test Certificates.
Rebar for Retaining Walls — Technical Overview
Reinforced concrete retaining walls resist earth pressure and surcharge loading through structural bending and shear. The three main types — cantilever, counterfort and basement perimeter walls — each have distinct reinforcement layouts, but all rely on high-ductility B500B deformed bar to DIN 488 / EN 10080. Steel Rebar Germany supplies the complete reinforcement package: vertical bars for the stem, horizontal distribution bars, base slab (footing) reinforcement, starter bars at construction joints, and closed links for shear and crack control.
Cantilever walls are the most common form for retained heights up to approximately 7–8 m. The stem acts as a vertical cantilever fixed at the base; the principal reinforcement is therefore vertical bars on the retained (tension) face, with horizontal bars as distribution steel at prescribed spacing. Counterfort walls are used for greater heights, with the counterforts acting as T-beam ribs behind the stem. Base slab reinforcement must resist both the upward soil reaction and the self-weight and loading of the soil above the toe and heel.
Vertical, Horizontal and Starter Bar Arrangement
Vertical main bars on the tension face of a cantilever stem are typically 12–25 mm dia at 100–200 mm centres. Horizontal distribution bars (minimum 20 % of main steel area per EN 1992-1-1) are typically 10–16 mm dia at 150–200 mm. Bars on the compression face are minimum 25 % of the tension face steel. Starter bars at the wall/footing construction joint are typically the same diameter as the vertical bars, with lap lengths per EC2 clause 8.7 (generally 45–60 bar diameters). Mechanical couplers can replace laps at construction joints to eliminate congestion.
| Wall Element | Bar Role | Typical Dia (mm) | Typical Spacing (mm) |
|---|---|---|---|
| Stem — tension face | Vertical main bars | 12–25 | 100–200 |
| Stem — both faces | Horizontal distribution | 10–16 | 150–200 |
| Stem — compression face | Nominal vertical | 10–16 | 200–250 |
| Base slab — top | Hogging bars (heel) | 12–20 | 125–200 |
| Base slab — bottom | Sagging bars (toe) | 12–20 | 125–200 |
| Construction joint | Starter bars / couplers | Match main bars | Match main bars |
Products for Retaining Wall Reinforcement
Bar, mesh, cut-and-bend and couplers — fully documented for export.
B500B Hot-Rolled Bar
Main vertical and horizontal stem reinforcement. Diameters 8–40 mm, 12 m standard or cut to length. k ≥ 1.08, Agt ≥ 5.0 %.
B500B Rebar →Welded Mesh Panels
For standard-geometry wall faces where mesh panels can be lapped and fixed in place. Reduces bar-by-bar fixing time significantly.
Mesh Panels →Cut-and-Bend Bars
Starter bars, U-bars, closed links and return bars at wall ends — cut and bent to DIN 488 shape codes per your bar schedule.
Cut & Bend →Mechanical Couplers
Dia 12–40 mm couplers for construction joints — eliminates lapping congestion and reduces steel tonnage at joint zones.
Rebar Couplers →Spacers & Accessories
Concrete cover spacers and bar chairs for both vertical and horizontal reinforcement placement in wall formwork.
Spacers →Export Documentation
EN 10204 3.1 MTC, Certificate of Origin, CE/DoP and packing list for every shipment.
Export & Delivery →Design Standards and Concrete Cover
Retaining wall reinforcement design follows EN 1992-1-1 (Eurocode 2) for the structural concrete elements, combined with EN 1997-1 (Eurocode 7) for geotechnical design of the retained height and foundation bearing. Key reinforcement detailing requirements under EC2 include:
- Minimum horizontal reinforcement ≥ 25 % of vertical reinforcement or 0.001 Ac, whichever is greater.
- Lap lengths for B500B in tension zones: typically 1.4 × basic anchorage length (≈ 45–60 bar diameters depending on cover and bar spacing).
- Concrete cover to retaining wall stems exposed to soil: minimum cnom = 40–50 mm for XC2/XD1 exposure class.
- Crack width limits: typically wmax = 0.3 mm for reinforced concrete retaining walls (water-retaining walls may require 0.2 mm).
All B500B bar supplied by Steel Rebar Germany meets these requirements with EN 10204 3.1 documentation to confirm grade, yield strength, ductility and chemical composition.
← Back to All ApplicationsFrequently Asked Questions
What rebar grade is specified for retaining walls to Eurocode 2?
How do I specify starter bars for construction joints in retaining walls?
Can welded mesh be used for retaining wall faces?
What concrete cover is required for retaining wall reinforcement?
Source German-standard rebar with full export documentation
Send us your wall dimensions, retained height and bar schedule — we will provide a competitive quotation with full MTC availability.
