Document Version: V1.0
Applicable Region: United States Domestic Market
Applicable Product: White Primed Finger Joint Pine Wood Moulding / Trim / Millwork
Inspection Standard Basis: US residential & commercial millwork industry norms, NWMA (National Wood Moulding & Millwork Association) specifications, US domestic packaging & finishing quality requirements
Inspection Purpose: Verify product compliance with US market appearance, structural, dimensional, finishing and packaging requirements; eliminate defective goods before shipment
Inspection Sampling Rule: AQL 2.5 / 4.0 (US conventional furniture & building materials sampling standard)
1. Basic Inspection Information
| Item | Details |
|---|---|
| Purchase Order No. | |
| Product SKU / Profile No. | |
| Production Batch No. | |
| Inspection Date | |
| Inspection Location | |
| Inspector Name | |
| Total Qty / Sampling Qty | |
| Inspection Result | □ Pass □ Fail □ Conditional Pass |
2. Raw Material & Wood Base Inspection
Core standard: US market high-grade finger joint pine moulding base material requirements, no hidden quality risks for post-installation decoration
| No. | Inspection Item | Acceptance Standard | Inspection Method | Result (OK/NG) | Remarks |
|---|---|---|---|---|---|
| 2.1 | Wood Species Confirmation | 100% Radiata Pine / Southern Yellow Pine (consistent with US order requirement); no mixed wood, no hardwood miscellaneous material doping | Visual check + batch material record verification | ||
| 2.2 | Wood Moisture Content | Controlled at 8%–12% (US climate adaptive standard); no excessive moisture to avoid post-shipment warping, cracking or mildew | Wood moisture meter random detection | ||
| 2.3 | Finger Joint Structure | Finger joints are tight, uniform and neatly arranged; no loose joint, gap, dislocation or broken tooth; joint glue line is flat and consistent, no overflow glue or glue deficiency; joint spacing complies with US millwork standard, no dense continuous short joints | Visual inspection + hand touch full check | ||
| 2.4 | Wood Defect Control | No dead knots, loose knots, resin pockets, bark inclusion, insect holes, decay, crack or wane; tiny healthy pin knots are allowed but must be evenly distributed without concentration | Visual inspection under natural light |
3. Dimensional & Structural Straightness Inspection
Core standard: Strict tolerance control to ensure seamless installation for US residential and commercial decoration
| No. | Inspection Item | Acceptance Standard | Inspection Method | Result (OK/NG) | Remarks |
|---|---|---|---|---|---|
| 3.1 | Section Dimension (Width/Thickness) | Tolerance: ±0.3mm; consistent profile radian and edge angle, no profile distortion, no local bulging or shrinkage | Vernier caliper random sampling measurement | ||
| 3.2 | Product Length | Custom length tolerance: ±5mm; conventional US standard lengths (8ft/10ft/12ft) fully compliant, no insufficient length cutting | Tape measure full sampling verification | ||
| 3.3 | Straightness & Flatness | Place moulding on flat platform; no visible bending, twisting or arching; straightness error ≤1mm per meter, no installation gap caused by deformation | Flat platform placement + ruler detection | ||
| 3.4 | End Cutting Quality | Both ends are cut flat and vertical, no burrs, no chipping, no oblique cutting; end grain is smooth and clean | Visual + hand touch inspection |
4. White Primer Finishing Quality Inspection (Core US Market Standard)
Core standard: US decorative grade white primed finish, smooth texture, strong adhesion, no defective paint, suitable for topcoat finishing
| No. | Inspection Item | Acceptance Standard | Inspection Method | Result (OK/NG) | Remarks |
|---|---|---|---|---|---|
| 4.1 | Primer Coating Times & Coverage | Double-coat white primer process (industry standard for US market); full coverage on all surfaces including profile grooves, edges and end grains; no bare wood leakage, no missing paint | Visual full inspection | ||
| 4.2 | Surface Smoothness | Professional sanded between primer coats; surface smooth and delicate, no grain protrusion, no sand mark, no orange peel, no granular protrusion; hand feeling flat and uniform | Hand touch + visual inspection under light | ||
| 4.3 | Paint Adhesion | Primer film firmly attached, no paint peeling, flaking, blistering or cracking; pass standard adhesion test, no paint drop when slightly scraped | Random slight scraping test | ||
| 4.4 | Color Uniformity | Uniform pure white primer tone, no color difference, no yellowing, no partial dark/light color; no stain, fingerprint or paint splash on surface | Natural light visual comparison | ||
| 4.5 | Paint Defect Control | No paint flow, paint bubble, pinhole, scratch, dent, dirt inclusion; no primer accumulation at corners and grooves | Light visual full inspection | ||
| 4.6 | End Grain Sealing | Both ends fully primed and sealed; no exposed end grain, effectively preventing moisture absorption and cracking, meeting US outdoor & indoor decoration durability requirements | Visual close inspection |
5. Surface & Appearance Defect Inspection
| No. | Inspection Item | Acceptance Standard | Inspection Method | Result (OK/NG) | Remarks |
|---|---|---|---|---|---|
| 5.1 | Surface Scratch & Damage | No visible deep scratches, collision dents, edge chipping; minor invisible fine scratches that can be covered by topcoat are acceptable | 360° full visual inspection | ||
| 5.2 | Finger Joint Surface Flatness | No joint protrusion or depression, no joint trace telegraphing; seamless and smooth transition at finger joints, no obvious unevenness | Hand touch + flat light inspection | ||
| 5.3 | Overall Cleanliness | No dust, greasy dirt, residual glue, foreign matter on product surface; clean and tidy overall appearance, meeting US high-standard delivery requirements | Visual inspection |
6. Labeling & Packaging Inspection (US Shipment Standard)
| No. | Inspection Item | Acceptance Standard | Inspection Method | Result (OK/NG) | Remarks |
|---|---|---|---|---|---|
| 6.1 | Product Labeling | Clear and complete labels: SKU, size, batch number, wood species, quantity, origin information; label firm adhesion, no falling off, clear printing, compliant with US import customs clearance requirements | Visual verification | ||
| 6.2 | Packaging Protection | Each bundle is tightly packed with fixed quantity; edge and corner protection measures in place; waterproof and dustproof packaging; no loose bundle, extrusion deformation, paint wear during transportation | Overall packaging inspection | ||
| 6.3 | Shipping Mark Compliance | Shipping marks consistent with PO requirements; clear and legible, no wrong mark or missing mark, adapting to US domestic warehousing and distribution rules | Document comparison + visual check |
7. Final Inspection Conclusion & Remarks
Defect Summary: ________________________________________________________________________
Non-conformity Handling Suggestion: □ Pass for shipment □ Rework & re-inspect □ Reject & scrap □ Batch hold
Inspector Signature: _______________ Date: _______________
QA Supervisor Review: _______________ Date: _______________
Final Approval: _______________ Date: _______________
