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B-grade surplus doors & windows — Bi-fold doors 3.6m alu 4-pane — CardiffB-grade

Bi-fold doors 3.6m alu 4-pane — Cardiff

Cardiff·4-pane bi-fold·Listed 12d ago
£1,590/set

Sold by Cardiff Urban Reclamation (Demolition) · Ref L0561

Contact sellerHow buying works

Condition grade 6/10 (B-grade). Assessed by the seller at listing; figures below relate to this specific lot of 4-pane bi-fold.

About this lot

Surplus to a luxury extension. Slim sightlines, thermally broken. Sealed and stored in workshop. Located in Cardiff — collection or arranged regional delivery available. Offered by Cardiff Urban Reclamation (demolition) from their Cardiff yard, listed 12 days ago.

Site over-orders, cancelled jobs and careful strip-outs are where the best material bargains in the UK come from — this lot is one of them. It is graded down on appearance alone; structurally and functionally it performs as A-grade.

Measurements & specifications

Width
3.6m × 2.1m
Frame
Anthracite alu thermal-break
Location
Cardiff
Ref
SB-56-11
Quantity / lot size
4-pane bi-fold
Sizes verified
Each unit tape-measured; dimensions within ±1mm of stated
Squareness
Diagonals within 3mm on sampled frames
Glazing
Double-glazed sealed units, no misting
Furniture
Supplied less furniture
Fire rating
Not fire-rated

Condition report & known defects

6/10
  • Allow a cutting/waste margin of ~10% over a normal A-grade order.
  • Cosmetic seconds — graded down for appearance, not performance.

Carbon & sustainability notes

This listing carries no CO₂-saved figure because the material is new; the sustainability win here is waste prevention — first-quality stock staying out of the waste stream entirely.

With Part Z and embodied-carbon reporting moving up the agenda, documented reuse like this is increasingly worth recording in your project's carbon log.

Collection & delivery

  • Buyer collection in Cardiff; forklift loading available weekdays 7:30am–4pm.
  • Nationwide pallet courier available — typically £40–£80 per pallet, 2–4 working days.
  • Viewings welcomed by appointment; the measurements table above reflects what was checked at listing.

Typical applications

  • Whole-house internal door refits (matched sets)
  • Self-build glazing packages at a discount
  • Feature stained-glass and fanlight restoration
  • Workshop, garage and outbuilding upgrades

Questions about this lot

Are the stated sizes the door leaf or the frame?+

Leaf sizes unless the listing says 'with frame'. Always measure your structural opening and allow for packers and tolerance before buying.

Can old doors be trimmed to fit?+

Solid timber doors trim comfortably by up to 6mm per edge. Engineered and fire doors have strict trim limits — check the certification label first.

Is the glazing safety glass?+

Modern units from Cardiff Urban Reclamation are toughened where regulations require. Original period glass is not safety glass — re-glaze below 800mm or in door zones.

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