Shower doors

Safety is the paramount concern for shower doors. You must ensure the glass is Tempered Safety Glass, which should comply with international standards such as ANSI Z97.1 (USA), EN 12150 (EU), or AS/NZS 2208 (Australia). For thickness, 6mm to 8mm is standard for framed or semi-framed doors, while 10mm to 12mm is required for frameless designs to provide necessary structural integrity and a premium feel. Additionally, look for Easy-Clean coating (Nano-coating) which reduces water spots and limescale buildup by up to 90%.

To prevent corrosion in high-humidity environments, prioritize hardware made of Stainless Steel 304 or Solid Brass. Avoid zinc alloys in high-end projects as they degrade faster. For finishes, PVD (Physical Vapor Deposition) coating is superior to standard electroplating for colors like Matte Black or Brushed Gold, as it offers higher scratch resistance and prevents peeling. Ensure that rollers in sliding doors use stainless steel ball bearings for smooth, silent operation over at least 100,000 cycles.

Buyers must verify the adjustment range of the door profiles; high-quality models offer 15mm to 20mm of out-of-plumb adjustment to compensate for uneven walls. For sliding doors, check for anti-jump mechanisms to keep the glass securely on the track. For pivot doors, ensure the hinges have a self-closing function within a 15-degree angle. Always request exploded view diagrams and installation manuals to ensure the product matches the technical skill level of your local contractors.

Request third-party test reports for fragmentation (ensuring the glass breaks into small, blunt pieces) and salt spray tests (minimum 24-48 hours) for hardware finish durability. On Made-in-China.com, prioritize suppliers with Audited Supplier status and those who hold ISO 9001 certification. It is also wise to check if the supplier has experience with CUPC or CE certification, which indicates a high level of manufacturing discipline and familiarity with international building codes.

The biggest risk is breakage during transit. To mitigate this, insist on honeycomb carton packaging with EPE foam protection on all edges. For LCL (Less than Container Load) shipments, products must be packed in fumigated wooden crates or pallets. Ensure your contract includes a breakage allowance or replacement clause, and always purchase Marine Insurance to cover the full invoice value plus 10%.

Start by requesting a pre-production sample of the hardware and a small glass swatch. Use a detailed Purchase Order (PO) that specifies the glass grade, hardware material, and packaging standards. Negotiate a payment structure such as 30% deposit and 70% balance after a third-party pre-shipment inspection (PSI). This incentivizes the supplier to maintain quality, as they only receive final payment once the goods are verified to meet your specs.

Due to the weight and fragility, Sea Freight is the only economically viable option. For bulk buyers, FOB (Free On Board) is recommended as it allows you to control the shipping costs and choose a forwarder experienced in handling fragile construction materials. If you are a first-time buyer, CIF (Cost, Insurance, and Freight) may be simpler, but ensure the supplier uses a reputable carrier with a low transshipment rate to minimize handling.

Before ordering, check your country's HS Code classifications for tempered glass (typically Chapter 70). Be aware that some regions (like the EU or USA) may have anti-dumping duties on specific glass products from certain origins. Consult with a local customs broker or use the trade tools on Made-in-China.com to verify the total landed cost, including duties and taxes, to ensure the project remains economically feasible.