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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

How to buy, collect and install this lot

  1. 1Confirm your requirement against the measurements above — bring a tape and the 4-pane bi-fold figure when you visit Cardiff Urban Reclamation in Cardiff.
  2. 2Reserve the lot in writing with a deposit; get the batch/reference (L0561) and condition grade (6/10) on the receipt.
  3. 3Arrange transport: car/van accessible, assistance with loading provided. Confirm access at your delivery address (width, overhead clearance, forklift or hand-ball).
  4. 4On arrival, check the count against the 4-pane bi-fold stated and photograph any transit damage before signing the delivery note.
  5. 5Store correctly on site — for joinery, that means dry, level and off the ground; keep original packaging on until the day of use where possible.
  6. 6Dry-lay or trial-fit a small sample first to confirm joinery performs as expected in your specific application before committing the whole lot.
  7. 7Log the reuse for your project records: photograph the seller invoice, capture the ~0 kg CO₂e figure and save this listing URL in your embodied-carbon file.

Pre-purchase checklist

  • Measure twice — confirm 4-pane bi-fold covers your net requirement plus a 9% waste/cutting allowance.
  • View in person or request a video walkround from Cardiff Urban Reclamation; do not rely on the hero photograph alone.
  • Check condition against the 6/10 grade above — ask which specific defects apply to the units you'll actually receive.
  • Confirm the batch or shade reference (L0561) so what you inspect is what you collect.
  • Agree collection or delivery cost in writing — pallet, hiab, flatbed or hand-ball each price very differently.
  • Verify VAT position: is the £1,590/set figure ex-VAT or inclusive? Trade sellers default to ex-VAT.
  • Ask about returns or replacements if the delivered quantity falls short — reputable demolitions stand behind the stated count.
  • Screenshot this listing (title, price, condition, CO₂ figure) as your negotiation baseline — surplus prices drift as lots age.
  • Check compatibility if you're matching existing material (brick blend, tile shade, timber section) with a physical sample first.
  • Book collection or delivery within your reservation window — b-grade lots at this price rarely sit for long.

Price in context

  • At £1,590/set, this lot sits roughly 36% below current UK merchant list for equivalent new material — the typical spread for b-grade joinery.
  • Delivered-to-door pricing (including pallet freight within ~57 miles of Cardiff) tends to add £40–£65 to the headline figure; collection stays as advertised.
  • Comparable b-grade lots in the surplus doors & windows category have moved on SurplusBuilder within 4 days of listing — well-priced surplus doesn't linger.

Sustainability deep-dive

The headline saving on this listing (waste avoidance) is benchmarked against manufacturing equivalent new joinery (a new timber door ~35 kg CO₂e; a uPVC window ~60 kg CO₂e). That's the embodied-carbon figure — the emissions locked into new material at the point of manufacture, before it ever reaches your site.

In UK building terms, embodied carbon typically accounts for 40–60% of a project's whole-life emissions once operational energy is decarbonised. Reusing joinery like this lot from Cardiff bypasses the manufacturing stage entirely, which is why substitution consistently outperforms offsetting on lifecycle assessments.

For projects tracking against Part Z (the proposed embodied-carbon amendment to the Building Regulations), BREEAM Mat 01 credits, or the RIBA 2030 Climate Challenge, reused material counts at zero embodied carbon in the A1–A3 modules. Keep the seller invoice, this listing URL and the CO₂e figure together in your carbon file.

Beyond carbon: buying this lot from Cardiff Urban Reclamation keeps first-quality joinery out of the UK construction waste stream (currently ~62 million tonnes/year, per DEFRA). It supports the circular-economy supply chain — sellers who divert stock only continue diverting when there's a viable resale route.

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.

What payment and paperwork should I expect from Cardiff Urban Reclamation?+

Cardiff Urban Reclamation issues a VAT invoice on collection or dispatch — bank transfer is standard, card on request. For anything over £500 we recommend a written spec confirmation before paying, so the exact joinery description and quantity are on record.

Can I reserve this lot while I organise transport from Cardiff?+

A short reservation (typically 48–72 hours) is usually possible with a 10% holding deposit. Surplus stock moves quickly, especially b-grade lots at this price point — confirm the hold in writing so the seller doesn't re-list.

Is this suitable for a Part L / Part Z reporting project?+

The material itself carries the same certifications as merchant stock; document the reuse route in your carbon log even without a specific CO₂e figure — waste avoidance still counts under Part Z reporting guidance.

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