Marshalls Redi-Rock Retaining Wall

Large-format wet-cast concrete blocks for gravity retaining walls — a modular, mortarless system for landscaping, infrastructure and flood-resilience schemes. Declared per single 1040-series middle block (1066 kg); a running metre of wall uses several blocks.

Manufacturer page
Marshalls Marshalls Redi-Rock Retaining Wall

Carbon and evidence

Product Evidence

Evidence currently held for the Marshalls product record.

Marshalls

Recorded Carbon Result

150kgCO₂e/block

A1–A3 GWP-total per declared unit, per EPD

Indicator: GWP-total

Marshalls Redi-Rock Retaining Wall Environmental Product Declaration · EN 15804+A2 core environmental impact indicators

A1–A3 covers raw-material supply, transport to manufacture and manufacturing. It is product-stage information, not a whole-life result.

Environmental Product Declaration

EPD recorded
Coverage
Representative product
Declared unit
1 unit (1040-series Middle Block, 1066 kg)
Programme
EPD Hub
Registration
EPD Hub HUB-3929
Standard
EN 15804+A2
Valid until
2030-09-08
Verification
Third-party verified

Redi-Rock 1040-series Middle Block; declared per single block at 1066 kg.

Read the EPDSource: EN 15804+A2 core environmental impact indicators

Carbon profile

kgCO2e per 1 unit (1040-series Middle Block, 1066 kg) · each bar starts at zero · local scale

A1-A3 product

150

A4-A5 site*

21.1

B use

-0.501

C end of life

29.4

D reuse / recycling

-10.7

adds carbon stores or removes EPD scenario* reuse/recycling potential (D)
* EPD transport and installation scenario, not this project's. Module D shows potential impacts or benefits from reuse, recovery or recycling after the product's assessed life. It is reported separately and never added to A-C. Do not compare bar lengths between materials. Each chart may use a different scale and declared unit.

Reported GWP Modules

Displayed as stored; modules are not added together here.

A1–A3

150 kgCO₂e

per 1 unit (1040-series Middle Block, 1066 kg)

A4*

17 kgCO₂e

per 1 unit (1040-series Middle Block, 1066 kg)

A5*

4.08 kgCO₂e

per 1 unit (1040-series Middle Block, 1066 kg)

B1

-0.501 kgCO₂e

per 1 unit (1040-series Middle Block, 1066 kg)

C1

0 kgCO₂e

per 1 unit (1040-series Middle Block, 1066 kg)

C2

24.6 kgCO₂e

per 1 unit (1040-series Middle Block, 1066 kg)

C3

4.37 kgCO₂e

per 1 unit (1040-series Middle Block, 1066 kg)

C4

0.398 kgCO₂e

per 1 unit (1040-series Middle Block, 1066 kg)

D

-10.7 kgCO₂e

per 1 unit (1040-series Middle Block, 1066 kg)

* A4/A5 are EPD scenarios, not project-specific results. Module D is outside the A–C system boundary and is not added to A–C. Module nomenclature follows BS EN 15978 / EN 15804. Declared values are suitable as inputs to a whole life carbon assessment under the RICS Professional Standard (2nd edition); this panel is not an assessment.

Upfront Carbon (A1–A5)*

171 kgCO₂e per 1 unit (1040-series Middle Block, 1066 kg)

A1–A3 150 + A4 17 + A5 4.08 · GWP-total, as declared

* Includes the EPD’s A4/A5 scenario assumptions, not project-specific transport or installation. This is the aggregation the proposed Part Z applies upfront limits to. The A1–A3 figure includes declared biogenic storage of 0.511 kgCO₂e; Part Z aggregates upfront carbon excluding sequestered carbon, which is the assessor's adjustment to make.

Service Life — the B4 Replacement Input

50 years · EPD reference service life

≈2 installations over a 60-year building study period.

B4 (replacement) follows the building, not the product: an assessor multiplies replacement cycles by project quantities. This record supplies the service life and does not compute B4.

Sourced Product Claims

  • Third-party verified EPD (EPD Hub, EN 15804+A2)Third-party verifiedSource

Evidence Sources

Marshalls Redi-Rock Retaining Wall Environmental Product Declaration

EPD Hub · EN 15804+A2 core environmental impact indicators

Coverage: Redi-Rock 1040-series Middle Block; declared per single block at 1066 kg.

Third-party verified

Comparison Status

The record contains the basic metadata required for a controlled comparison. Products must still perform the same function and use compatible units, PCRs and lifecycle scope.

Design & Specification Notes

Qualitative notes for early design discussion. Not product-specific EPD evidence, and not a basis for numerical comparison.

Large-format wet-cast concrete blocks for gravity retaining walls — a modular, mortarless system for landscaping, infrastructure and flood-resilience schemes.

Typical Uses

  • •Paths & paving
  • •Public realm surfaces
  • •Permeable groundworks

Key Performance

Durable external surface with slip resistance.

Specification Actions

  • •Specify GGBS/PFA cement replacement (target: 50%+ replacement).
  • •Request EPD showing embodied carbon per m3.
  • •Calculate transport distances for primary materials.

Indicative Health & Indoor Air

low Risk

Inert concrete; no in-use emissions of concern.

Evidence:Third-party verified

Specification

Range
Redi-Rock
Collection
Concrete Hard Landscaping
Finish
Large-format concrete retaining block
Service life
50 years

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