// FIELD BRIEFING // NEW AD/CVD ORDERS

New Fiberglass Door Panel Orders: Scope Traps and Classification Pitfalls

Commerce’s AD/CVD orders on Chinese fiberglass door panels took effect August 6. Cash deposits are live — and the scope is broader than most importers expect.

Effective August 6, 2026, the Commerce Department issued antidumping and countervailing duty orders on fiberglass door panels from China (91 FR 50797; dockets A-570-209 and C-570-210). The orders follow affirmative final determinations by Commerce on June 15 and an affirmative injury determination by the U.S. International Trade Commission on July 28. Translation: a discrete new population of building-products imports is now dutiable, cash deposits are required as of the effective date, and the exposure reaches well beyond the obvious “door panel” line item.

The rates are not marginal. Cooperative respondents drew antidumping cash-deposit rates from roughly 42% to 104%, while the China-wide entity — the rate that applies to any producer or exporter not specifically named — landed at 147.82%, based on adverse facts available. On the countervailing side, the all-others rate is 60.64%, with several companies hit at 186.46% under adverse facts available. Stack antidumping and countervailing duty together and an unscreened entry can more than double in landed cost overnight.

On the CVD side: the all-others rate is 60.64%; adverse-facts-available respondents drew 186.46%. Antidumping and countervailing cash deposits are collected together.

// Scope trap #1: origin is where the skin is pressed — not where it ships

The order fixes country of origin at the point where the fiberglass door skin is pressed. That single sentence defeats the most common evasion instinct. A panel whose skin is pressed in China does not become non-subject because it was trimmed, drilled, painted, foam-filled, or assembled somewhere else. The scope language is explicit that third-country processing — filling with insulation foam, trimming, cutting, notching, punching, drilling, painting, finishing, or assembly — does not remove the merchandise from the orders. If your “Vietnamese” or “Malaysian” door started as a Chinese-pressed skin, it is in scope, full stop.

// Scope trap #2: unfinished, unassembled, and pre-hung all count

The orders cover fiberglass door panels and sidelites whether finished or unfinished, assembled or unassembled, painted or unpainted, with or without cut-outs, and whether or not imported in a pre-hung door system or complete entry door system. Importers who assume a bare skin, an unpainted blank, or a knocked-down kit escapes the order are mistaken. Sidelites (sidelights) are expressly included.

// Scope trap #3: the door system is dutiable, but only the panel is subject

Here is the nuance that will drive valuation disputes. When a subject panel or sidelite is imported inside a pre-hung or entry door system, only the fiberglass panel and sidelite — including glass lites assembled into them or shipped for assembly — fall within scope. The jambs, handles, locks, hinges, thresholds, sills, and trim are not subject, even when assembled onto the door. That means importers must allocate value between the subject panel and the non-subject components on entry. Get that allocation wrong — or fail to document it — and you either overpay duties or hand CBP a misvaluation case.

// Classification pitfall: the HTS is a five-basket trap

The primary classification is HTSUS 3925.20.0010, but Commerce expressly notes subject merchandise may also enter under 4418.29.4000, 4418.29.8030, 4418.29.8060, or 7019.90.5150. Critically, the written scope description is dispositive — not the HTS number. A Licensed Customs Broker who classifies to a “clean” heading does not put the goods outside the order; if the written description covers the product, duties attach regardless of the code used. Importers should screen entries against all five subheadings and, where there is any doubt, request a scope ruling rather than self-determine.

// Two exclusions worth confirming

The orders carve out products already covered by the antidumping and countervailing duty orders on wood mouldings and millwork products from China, and products covered by the float glass orders from China (and Malaysia, for countervailing duty). If your product sits near those boundaries, confirm which order governs before you deposit — double coverage and gaps both create risk.

// The timing wrinkle: a gap in provisional measures

Because antidumping provisional measures expired July 20 and countervailing duty measures lapsed December 19, 2025, there is a window of entries — after provisional measures ended and before the ITC final determination — that Commerce will instruct CBP to liquidate without antidumping or countervailing duties. Suspension of liquidation and cash-deposit collection resume as of August 6. Anything entered on or after the effective date is exposed at the full rate. Do not let a Licensed Customs Broker’s muscle memory from the gap period carry into August entries.

// What building-products importers should do this week

1. Screen your catalog now. Flag every fiberglass door, sidelite, blank, kit, and pre-hung system sourced from or processed in China, and identify where each skin is pressed.
2. Fix your HTS coverage. Check entries against all five listed subheadings and reconcile against the written scope, not just the code.
3. Build the value allocation. For entry door systems, document the split between the subject panel or sidelite and the non-subject hardware and trim.
4. Trace third-country suppliers to the press. Finishing offshore does not cure Chinese-pressed skins, so get mill and pressing records.
5. Where a line is genuinely borderline, request a scope ruling. It is cheaper than a misclassification or fraud exposure later.

Disclaimer: This article is for general information and is not legal advice. Primary source: U.S. Department of Commerce, Enforcement and Compliance, “Fiberglass Door Panels From the People’s Republic of China: Antidumping Duty Order and Countervailing Duty Order,” 91 FR 50797 (August 6, 2026). Rates and dates are drawn from that notice; verify against the order and consult qualified counsel or a licensed broker on your entries.