What are the UK CBAM default values for aluminium doors, windows and structures?
Aluminium doors, windows, their frames and door thresholds (7610 10 00) take a UK CBAM default of 4.847 tCO2e per tonne. Other aluminium structures and parts, and profiles prepared for use in structures (7610 90 90), are 4.791, and bridges, towers and lattice masts (7610 90 10) 3.987.
Defaults under heading 7610
- 7610 10 00: doors, windows, frames and door thresholds: 4.847 tCO2e per tonne.
- 7610 90 10: bridges and bridge sections, towers and lattice masts: 3.987.
- 7610 90 90: other structures and parts, and plates, rods, profiles and tubes prepared for use in structures: 4.791.
Profile or window
A hollow profile under 7604 21 00 carries 3.894. Cut, assembled and shipped as a window frame, it carries 4.847. Prefabricated buildings of heading 9406 are excluded from 7610.
Glazed units
The default is per tonne of the good, and the importer must hold records showing how the weight was worked out. For glazed windows, agree with your importer how weight will be recorded before the first shipment.
A façade package for a UK school
- 14 t of unglazed window frames, 7610 10 00: 14 x 4.847 = 67.858 tCO2e.
- 6 t of balustrade sections, 7610 90 90: 6 x 4.791 = 28.746 tCO2e.
- Total on defaults: 96.604 tCO2e.
What Senseible does here
Senseible reads profile purchases by extruder with your powder coating fuel invoices, so your frame figure can be set against 4.847. We build the figure from your records and check every figure in-house; for the UK it must then be verified by a verifier accredited for UK CBAM. Have your own verifier? Send it to them.
Sources: HMRC, UK CBAM aluminium default values (published 16 October 2026), HMRC, Goods within the aluminium sector in scope of UK CBAM
Last reviewed 2026-11-03.