Building Residential & Commercial Door Hinges FAQs
Main materials: Carbon steel (our factory produces with eco-friendly anti-rust coatings like nickel/chrome/black/zinc, etc, plating), stainless steel.
Selection tips:
Interior doors hinges: Lightweight carbon steel with plating (aesthetic & rust-resistant);
Exterior doors (e.g., entry doors): Building indoor door hinges (4 Inches and Larger) (Carbon steel with plating – Cost-effective for painted hinges) or SS stainless steel (resists moisture & corrosion).
We produce a wide range of door hinges including: Residential hinges (for both interior & exterior doors), Building/commercial/industrial door hinges, Self-closing spring hinges, T-hinge, tee hinges (for outdoor fences/gates & barrier doors: (warehouse doors, farm gates, stable doors), courtyard gates/garden gates), Butt hinges, Weld-on hinges, etc. You can also browse our door hinge and hardware products on our website: www.weeyuan.com
Standard sizes: 3″ x 3″, 3-1/2″ x 3-1/2″ (for interior doors), 4″ x 4″, 4-1/2″ x 4-1/2″, 4-1/2″ x 4″ (for heavy solid wood doors/steel doors/security doors). Oversized/exterior doors: May require 5″ hinges or reinforced butt hinges. We can also customize the production of hinges.
Our bulk supply purchasing solutions offer significant cost savings:
Volume Discounts: Tiered pricing agreements – Discount scales with order.
Standardized specifications – Consolidate hinge types/sizes to increase order quantities.
We are a specialized manufacturer focused exclusively on hinges and hardware products, with over 20 years of industry experience. You’re warmly welcome to visit our factory at your convenience for a first-hand look at our production capabilities.
Yes, of course. We offer custom tooling and production services based on customer-supplied drawings.
Matching door frames:
Wooden frames: Standard hinges (hinge cup hole)
Metal frames: Require self-adjusting specialty hinges (to prevent frame deformation)
Note: For older frames with structural looseness, we recommend using reinforcement plates for added stability.
Our standard trade terms are FOB (Free On Board), but we also accept CIF (Cost, Insurance, and Freight), CFR (Cost and Freight) upon request. Payment can be made via T/T (Bank Transfer), L/C (Letter of Credit).
For doors ≤7 feet in height: 2 hinges; For doors >7 feet or solid-core doors: 3 hinges to improve weight distribution.
Yes, hinges are compatible with standard North American door types, but selection depends on specific door requirements. Here’s a detailed breakdown:
1. Residential Door Hinge Compatibility
Swing Doors (Most Common)
Standard 3″ to 4.5″ butt hinges (3-4 per door)
Ball bearing hinges recommended for heavy solid-core doors
Self-closing spring hinges required for some exterior applications.
2. Commercial Door Requirements
Hinges (minimum 3.5″ size).
Use graphite powder for lubrication (superior to oil-based lubricants as it doesn’t attract dust).
For older hinges, replace the hinge pin if excessive wear is detected. For severe wear: Replace with ball-bearing hinges (reduces friction significantly)
One type is a bearing without balls (often called a ‘bushing’), while the other incorporates ball bearings. Hinges with ball bearings provide superior noise reduction and friction minimization.
To compare the visual differences between the two bearing configurations, please refer to the illustrative diagrams on the hinge product packaging page.
Yes, during mass production of our products, we always conduct salt spray tests to meet the required standards.
Yes. Standards Compliance: Conform to ANSI/BHMA A156.1 standards for reliability.
Standard Packaging Options: Corrugated cartons bulk packaging PP bag; Neutral white boxes with product labels.
Custom Packaging Services: Premium color boxes; Shrink-wrapped paper box packaging.
Packaging Visual Reference: We recommend viewing our packaging gallery at [hardware hinges packaging page].
For initial trial orders, we can negotiate flexible quantities to accommodate your needs.
Of course, our factory provides free samples to customers.
The scrap materials generated during the production process are ultimately recycled back to the raw material processing stage for reuse and reprocessing.
Yes, we can provide reports for the steel used in our hinges, which verify the material’s composition.
We strictly provide customers with premium-quality products. Should any defective items be identified, our factory will compensate for the affected quantity in your next order at no extra cost.
Hinge screws are included as standard with the product—no need for separate orders.
We factory-direct supply, ensuring products are shipped directly from our production base, effectively eliminating middleman markups. To guarantee transparency in our cooperation, we offer the following two verification methods:
On-site Factory Inspection: welcome to a visit to our production facility.
Video Verification: We can provide high-definition production process videos, including key stages such as raw material processing and quality testing.
Gives you a more intuitive understanding and confidence in our product quality.
Yes, we can do offer Vendor-Managed Inventory (VMI) for large, repeat customers. Our VMI program is to streamline supply chain efficiency by allowing us to manage inventory levels on your behalf, ensuring optimal stock availability while reducing costs and stockouts.
Yes, we factory manufacturing supply provide mass production commercial-grade hinge solutions specifically engineered for high-traffic institutional environments.
Yes, we offer customized manufacturing hinge solutions tailored to the specific needs of partners and large-scale projects. Our factory engineering team can design and manufacture hinges based on your requirements.