The Role of Formwork and Scaffold Towers in Achieving CBAM-Compliant Construction Projects

 Formwork and scaffold towers are two of the most widely traded steel and aluminium products on a construction site — and both now carry a carbon border cost when they cross into the EU. Here's what site managers, contractors, and equipment exporters need to know



Formwork & Scaffold Towers on the CBAM Radar

Formwork — the temporary steel or aluminium panel moulds that shape poured concrete on site — and scaffold towers — the modular access structures that support workers and materials at height — are among the most frequently re-used, re-exported, and re-imported categories of construction equipment in Europe. Because both are manufactured from carbon-intensive steel or primary aluminium, they now fall squarely within the scope of the EU's Carbon Border Adjustment Mechanism (CBAM).

For contractors and equipment rental fleets sourcing formwork panels or scaffold towers from outside the EU, CBAM is no longer a background policy issue — it directly affects landed cost, supplier selection, and project carbon reporting obligations, especially on public infrastructure tenders that increasingly require embodied-carbon disclosure.

Key PointCBAM certificate costs sit on top of standard import duties. For equipment that is imported, used, and re-exported repeatedly (a common pattern for scaffold towers and rental formwork fleets), tracking embedded emissions accurately across multiple border crossings is becoming a genuine operational task, not just a paperwork exercise.
02 / PRODUCT SCOPE

Where Formwork & Scaffold Towers Sit in CBAM

Both product categories are captured under CN heading 7308.40 — "equipment for scaffolding, shuttering, propping or pit-propping" — within CBAM's iron and steel sector (Chapter 73). Where formwork panels or scaffold tower frames are made of aluminium rather than steel, they instead fall under CBAM's aluminium sector (Chapter 76, headings such as 7610).

Table 1 — Illustrative CN code mapping for formwork and scaffold towers (confirm exact codes with your customs declarant)
ProductTypical CN HeadingMaterial / RouteCBAM Sector
Steel formwork panels7308.40Steel, BF-BOF or scrap-EAFIron & steel
Aluminium formwork panels7610.90Primary or recycled aluminiumAluminium
Steel scaffold tower frames & couplers7308.40Steel, scrap-EAF (common)Iron & steel
Aluminium scaffold tower frames7610.90Primary or recycled aluminiumAluminium
NoteA single scaffold tower system can straddle two CBAM sectors at once — steel base jacks and couplers under Chapter 73, aluminium standards and ledgers under Chapter 76 — so a full compliance picture often means tracking two separate emissions methodologies for one physical product.
03 / TIMELINE

Definitive Period Timeline

CBAM's reporting-only transitional period has ended. Financial obligations are active for every shipment of formwork and scaffold towers entering the EU from 2026 onward.

Reporting Starts

Quarterly embedded-emissions reporting begins for covered CN codes, including 7308.40 and 7610.90.

Transition Ends

Final quarterly transitional report due. No certificate purchases required up to this point.

Definitive Phase

Importers of formwork and scaffold towers must hold Authorized CBAM Declarant status, verify emissions, and purchase certificates.

Weekly Pricing

Certificate prices shift from quarterly to weekly EU ETS-linked averages. First annual report due 30 Sept 2027.

Scope Expansion

Proposed extension to ~180 further steel- and aluminium-intensive downstream products, pending approval.

ImportantThe €100-per-tonne CO₂e penalty for uncovered emissions is uncapped and applies equally whether the shipment is a one-off purchase of formwork panels or a routine rotation of rental scaffold tower stock.
04 / METHODOLOGY

Emissions Profile: Steel vs Aluminium Equipment

The choice between steel and aluminium formwork or scaffold towers is usually made on weight, durability, and reuse cycles — but it also has a major CBAM consequence. Primary aluminium production is extremely electricity-intensive, giving it one of the highest embedded-emissions factors of any CBAM-covered material, while recycled (secondary) aluminium and scrap-EAF steel sit at the opposite end of the scale.Formwork panelImportant

Where verified data is unavailable, EU default values apply — and these are set conservatively high to encourage exporters to submit real, audited figures rather than rely on the default benchmark.
5 / WORKED EXAMPLES

Test Cases: Certificate Cost by Product

The three simplified, illustrative examples below show how certificate exposure differs across a steel formwork shipment, an aluminium formwork shipment, and a steel scaffold tower shipment. Figures use round-number assumptions for teaching purposes — actual liability depends on the verified or default emission factor and the certificate price at time of declaration.

Test Case 1 — Steel Formwork Panels

CN 7308.40 · BF-BOF route
Shipment volume200 t
Emission factor (default)1.90 tCO₂e/t
Total embedded emissions380 tCO₂e
Certificate price assumed€75/t
Certificate cost€28,500

Test Case 2 — Aluminium Formwork Panels

CN 7610.90 · primary aluminium route
Shipment volume50 t
Emission factor (default)9.50 tCO₂e/t
Total embedded emissions475 tCO₂e
Certificate price assumed€75/t
Certificate cost€35,625
  • Confirm the exact CN code for each formwork or scaffold tower component — steel parts (7308.40) and aluminium parts (7610.90) require separate CBAM treatment.
  • Identify the production route for each material: BF-BOF, scrap-EAF, or primary vs. recycled aluminium.
  • Build installation-level emissions data using EU-prescribed methodology for each material stream.
  • Arrange third-party verification — unverified data forces reliance on higher default values.
  • For rental fleets with repeat cross-border movement, establish a repeatable emissions-data process rather than a one-off declaration.
  • Share verified data with the EU importer of record through the CBAM registry each shipment.
  • Track certificate pricing shifts from quarterly (2026) to weekly (2027) EU ETS-linked averages.
  • Watch the proposed 2028 scope expansion for further downstream construction-equipment coverage.
07 / ENFORCEMENT

Penalties & Project Risk

EU importers of formwork and scaffold towers must hold Authorized CBAM Declarant status, file verified annual declarations, and surrender certificates matching embedded emissions. Failure to do so triggers a penalty of €100 per excess tonne of CO₂e, uncapped, plus possible administrative fines and mandatory third-party audits.

ImportantOn large infrastructure projects, an equipment supplier that cannot provide timely verified emissions data risks being excluded from EU-based tenders altogether — independent of the quality or price of the formwork or scaffold towers themselves.
08 / LOOKING AHEAD

Outlook for Construction Supply Chains

As CBAM's scope is proposed to expand toward roughly 180 additional steel- and aluminium-intensive downstream products by 2028, formwork and scaffold tower suppliers should expect embedded-carbon data to become a standard procurement requirement — sitting alongside load ratings, safety certifications, and material specifications on every tender. Default values are also due for a first formal reassessment by December 2027, with mark-ups on unverified data reaching +30% for most CBAM products from 2028 onward.

For contractors, the practical takeaway is that formwork and scaffold towers are no longer just temporary works equipment — they are now carbon-priced assets whose sourcing decisions can materially affect a project's CBAM-compliant cost base.

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