New door

Selecting the correct material is the foundation of durability. For exterior doors, prioritize solid wood (teak or mahogany) for luxury, or fiberglass and galvanized steel for weather resistance and security. For interior doors, MDF (Medium Density Fiberboard) or Hollow Core options are cost-effective for residential use, while Solid Core doors provide superior sound insulation (STC rating of 30-35). If the environment is humid, such as a bathroom, ensure the material has WPC (Wood Plastic Composite) properties to prevent warping.

Buyers must verify that products meet regional safety codes. For the US market, ensure compliance with UL 10C for fire-rated doors (20/60/90 minutes) and ADA (Americans with Disabilities Act) standards for width and threshold height. For the EU, look for CE Marking and EN 12209 for locks and hardware. Always request FSC (Forest Stewardship Council) certification if your brand prioritizes environmental sustainability and legal timber sourcing.

The longevity of a door often depends on its hardware. Specify 304 or 316 stainless steel hinges to prevent rust, especially in coastal areas. For surface finishes, powder coating offers better scratch resistance than traditional paint. For wooden doors, check the veneer thickness (minimum 0.6mm recommended) and ensure the UV painting process is used to prevent fading from sunlight exposure.

Professional suppliers on Made-in-China.com usually offer OEM/ODM services. You should confirm the availability of pre-hung options (door leaf + frame + architrave) to reduce on-site installation labor. Discuss custom dimensions, glass inserts (tempered safety glass is a must), and smart lock integration capabilities to meet modern smart home or commercial security requirements.

The biggest risk is physical damage (warping or cracking) and moisture absorption during sea transit. Ensure the supplier uses EPE foam corner protectors, waterproof plastic film wrapping, and strong plywood crates (avoiding solid wood to bypass fumigation issues). Always include shipping insurance and specify container desiccant bags to maintain a stable humidity level during the voyage.

Utilize the Secured Trading Service on Made-in-China.com to protect your payment until delivery. For bulk orders, negotiate a 30% deposit and 70% balance payment after a successful third-party pre-shipment inspection (PSI). Clearly define the Acceptable Quality Limit (AQL) in the contract, focusing on tolerances for flatness (usually <3mm) and color consistency across different batches.

Due to the high weight and volume, LCL (Less than Container Load) can be expensive due to 'dead space' charges; FCL (Full Container Load) is significantly more cost-effective for orders over 20-30 units. Work with a freight forwarder experienced in oversized cargo to handle customs clearance and 'Last Mile' delivery, as residential areas may require lift-gate trucks which add to the total landed cost.