HS Code 3925.20 — Plastic Doors, Windows & Door Frames | South Africa Import Duty

HS 3925.20 does not get held at the port for NRCS — there is no NRCS compulsory specification for plastic windows or doors. Where it bites is building-plan approval: your local authority will reject the plan if your fenestration does not meet SANS 613 performance and SANS 10400-XA energy efficiency.

That is the whole story for importers of uPVC windows, PVC doors and plastic door thresholds. Customs is comparatively boring on this line. The municipality is where European frames get sent back to the drawing board, and where six- and seven-figure residential builds slip by a quarter.

What this HS code covers

HS 3925.20 sits in Chapter 39 (plastics and articles thereof) and covers doors, windows, their frames and thresholds for doors, where plastic gives the article its essential character. In practice this is uPVC casement and tilt-and-turn window systems, sliding patio doors with PVC outer profiles, PVC entrance doors and the plastic thresholds fitted underneath them.

The line does NOT cover aluminium-composite door and window systems where aluminium dominates the bill of materials — those classify under HS 7610.10 (aluminium doors, windows and frames). It also does NOT cover timber-frame fenestration (Chapter 44) or steel-framed systems (Chapter 73). A uPVC window with an internal aluminium reinforcement insert generally stays in 3925.20 if the visible PVC profile carries the essential character, but a full-aluminium frame with a PVC thermal break flips to 7610.10. SARS Tariff Determination decisions repeatedly turn on this essential-character test, and a binding ruling is worth getting before you ship a mixed-material system.

South African trade picture

The numbers on this HS line are smaller than most importers assume. According to UN Comtrade 2024 data (reporter ZAF, HS 392520), South Africa imported USD 1.54 million / 675 tonnes under this heading. That is a small line by SA building-product standards, and it shrank — value is down 48.7% from 2022 and volume down 26.5% over the same window.

China dominates volume — 88.2% of the kilograms in 2024 and 45.5% of the value (UN Comtrade, reporter ZAF, HS 392520). That reflects bulk Chinese profile extrusion and basic uPVC sashes landing at roughly USD 1.18/kg. The European supply tier is fragmented and sits at the premium end on unit value: Czechia 13.8%, Germany 12.3%, Belgium 8.1%, Norway 5.2%, Poland 3.7%, France 2.8% and Italy 1.0%, with unit values ranging from USD 9.76/kg to USD 37.68/kg — consistent with finished energy-rated frame systems shipped with hardware and double-glazed units. Turkey is effectively absent from the 2024 partner data on this line.

The export side is more interesting than usual. SA exports of HS 392520 hit USD 1.45 million in 2024, up 150.8% year-on-year (UN Comtrade), and the trade balance is now roughly neutral. About 71% of those exports go into SADC — DRC (35.7%), Zimbabwe (13.2%), Lesotho, Eswatini, Zambia, Botswana, Mozambique and Namibia together. The corridor into the rest of southern Africa is now a meaningful outlet for SA-finished frames.

Duties and VAT

The MFN (most-favoured-nation) duty rate on HS 3925.20 sits in Schedule 1 Part 1 of the Customs and Excise Act. We have not printed a specific percentage because the chapter-39 schedule must be verified against the live SARS tariff book before each shipment — the rate moves with budget amendments and AfCFTA staging. Verify against the current SARS tariff book at https://www.sars.gov.za/legal-counsel/primary-legislation/schedules-to-the-customs-and-excise-act-1964/ before you raise the SAD500. Chapter 39 finished-article lines typically sit in the 15–20% MFN band, but treat that as a planning range, not a quotable rate.

VAT is 15% on the duty-inclusive value (customs value + duty), per the VAT Act. There is no subheading-level VAT exemption for HS 3925.20.

Preferential rates can change the calculus materially:

• SADC–EU EPA — frames originating in Czechia, Germany, Belgium, Poland, France, Italy and the rest of the EU qualify with a valid EUR.1 or origin declaration. This is the primary preference instrument for European supply.
• EFTA–SACU FTA — covers Norway and Switzerland. Norwegian volume in the 2024 data is consistent with aluminium-composite product flowing under EFTA preference.
• SACUM–UK EPA — the post-Brexit mirror, for UK-origin frames.
• SADC Trade Protocol — typically free for originating goods, relevant for the SADC export corridor.
• AfCFTA — South Africa applied AfCFTA preferential rates from 31 January 2024 on a staged phase-down. Year 2 (2026) is NOT zero — it is a small reduction off MFN. Do not assume AfCFTA = duty-free; check the published SARS AfCFTA schedule for the year-by-year rate.

There is no anti-dumping or countervailing duty in force on HS 3925.20 from any partner as at the time of writing (ITAC public register). The active Chapter 39 ITAC investigation concerns PVC resin in primary form under HS 3904 — a different line.

Documents and compliance

The customs document set on HS 3925.20 is standard, but the building-side certificates are where the project either lives or dies. Plan to land your container with the customs file and the SANS 613 test certificate in the same folder.

• Commercial invoice and packing list
• Bill of lading or air waybill
• SAD500 import declaration
• EUR.1 movement certificate or origin declaration (for EU, UK, EFTA preference)
• Manufacturer test report — wind load, water tightness, air permeability, operating force, ideally to SANS 613 or to EN 14351-1 with an engineer’s mapping to SANS 10160-3 site wind pressures
• SANS 10400-XA energy compliance documentation — frame + glazing assembly U-value and SHGC for the climatic zone of the build
• AAAMSA / SAFIERA certificate where the project demands a third-party SA-based test result
• Binding SARS Tariff Determination where you are running a mixed-material system that could be classified under 7610.10

CE marking on its own is not enough. The European EN 14351-1 test report is useful supporting evidence, but local authorities increasingly require an engineer’s sign-off mapping the EN performance class to the SANS 10160-3 wind action at the site. Cold acceptance of the CE mark alone has been rejected in Cape Town and Johannesburg plan-approval cases.

Common mistakes

The big one is organising the compliance file around an NRCS Letter of Authority that does not exist. There is no NRCS compulsory specification covering plastic fenestration as a class (NRCS Compulsory Specifications Register, accessed 2026-05-18) — so there is no LOA to apply for, and structuring a six-month import plan around an LOA timeline is a category error. The real timing risk is AAAMSA/SAFIERA testing turnaround and the engineer’s wind-load calculation, which sit between you and building-plan approval, not between you and customs release.

The second is classifying an aluminium-composite system under 3925.20 because it has a plastic thermal break. If aluminium gives the article its essential character, it lives in 7610.10 and the duty and statistical treatment change. Get a binding Tariff Determination.

The third is specifying a European frame on the glass U-value alone. SANS 10400-XA caps fenestration as a percentage of net floor area by climatic zone with a ceiling on the assembled U-value. A 1.4 W/m²K glass unit set into a frame and edge seal that have not been tested as a system will fail the assembly U-value at plan submission.

The fourth is assuming AfCFTA preference equals zero duty in 2026. It does not — it is the year-2 staged rate.

How JLog handles it

JLog clears HS 3925.20 shipments through Cape Town and Durban harbours. We handle the SAD500, line up your EUR.1 or origin declaration where you are claiming SADC–EU EPA or EFTA preference, and we flag classification risk on mixed-material systems before the goods leave the supplier so you can get a binding Tariff Determination if needed. We coordinate inland delivery from the harbour to site and store frames at our Woodstock warehouse where the build programme runs behind the shipping programme. Where the project compliance file needs strengthening, we will point you to AAAMSA-accredited testing and to an engineer who can map EN 14351-1 results to SANS 10160-3 — we do not do the building-plan submission ourselves, but we make sure the customs file does not become the bottleneck.

Get a quote for shipping HS 3925.20: jlog.co.za/get-a-quote

Need to clear this commodity? customs clearing agent in Cape Town — JLog files customs entries through Cape Town, OR Tambo and Durban with direct FedEx and DHL accounts. Contact info@jlog.co.za.