Coated Steel for Door Industry
Everesteel manufactures coated steel coil and sheet for the door industry at our own factory in Jiangyin, Jiangsu — supplying door manufacturers and roll-forming plants across 65+ countries with PPGI, PPGL, laminated steel, and PPCR, produced on our own coating lines with an annual production capacity of 26,000+ tons.
Built for the Door Line — From Sample Approval to Full Production
Everesteel manufactures coated steel for roller shutter doors, garage doors, industrial doors, and interior doors at our own factory in Jiangyin, Jiangsu. We are not a trading company — every coil is coated and processed on our own lines, giving door manufacturers direct control over finish, color match, coating weight, and supply consistency. With 26,000+ tons of annual capacity and buyers in 65+ countries, we support both sample-stage development and repeat production orders.
26,000+
Tons annual production capacity
6,800+
Global buyers served
65+
Countries supplied worldwide
98.7%
On-time delivery rate
What Materials Are Used in Door Industry?
Door panels and slats typically use pre-finished steel that is ready to roll-form, profile, and assemble without in-house painting. The best choice depends on the door type, exposure environment, and desired surface finish. In most door applications, four materials meet most needs.
- PPGI is the most common choice for door skins, garage panels, and shutter slats, offering balanced corrosion resistance and finish flexibility.
- PPGL uses a Galvalume (55% aluminum-zinc) base, providing stronger corrosion protection for garage doors and industrial doors exposed to coastal, humid, or outdoor conditions.
- Laminated Steel is used for interior and decorative door panels where wood grain, patterned, or premium surface finishes are the priority.
- PPCR is suited to interior door panels and low-corrosion components that require a smooth, clean painted surface without metallic coating.
Door Industry Applications
Everesteel supplies coated steel matched to each door type. Explore the material and finish options for your specific door below.
Why Door Manufacturers Source from Everesteel
Direct from the Manufacturer — No Intermediary
Every coil is produced at our own factory in Jiangyin, Jiangsu, on our own coating and processing lines. You are not buying from a trading company. That means direct control over your specifications, direct accountability for quality, and no margin added by a middleman.
Wood Grain, Wrinkle, and Solid-Color Finishes
Doors carry both function and appearance. We supply realistic wood grain finishes, textured wrinkle coatings that hide handling marks, and clean solid colors across a range of door tiers — all applied and controlled on our own lines.
Forming Performance for Roll-Formed Profiles
Shutter slats and door skins are formed around tight bends and repeatedly cycled. We match substrate, coating weight, and paint flexibility to your forming process, so coatings resist cracking and peeling on profiled and folded panels.
OEM Color Matching, Confirmed In-House
Door brands work to precise color palettes. We hold RAL and Pantone references on file and produce custom formulations directly on our coating lines. Lab drawdowns and production samples are provided for your approval before the full run — so one supplier is accountable for the match across every order.
Downstream Processing — Coil, Slit, or Sheet
Slitting, cut-to-length, embossing, and lamination are all available in-house. Your material arrives in the exact width and format your roll-former or press needs — reducing handling and waste on your line.
Consistent Supply at Door Volumes
Our 26,000+ tons of annual capacity supports both sample-stage qualification and full-volume recurring orders, with a 98.7% on-time delivery rate across 6,800+ global buyers. Whether you are qualifying a new door material or scaling an established line, we maintain supply continuity without sourcing from third parties.
Technical Specifications for Door Panels
| Parameter | PPGI | PPGL | Laminated Steel | PPCR |
|---|---|---|---|---|
| Substrate | Hot-dip galvanized steel | Galvalume (55% Al-Zn) | Cold-rolled or galvanized steel | Cold-rolled steel |
| Typical Use | Door skins, shutter slats, garage panels | Garage doors, industrial exterior doors | Interior doors, decorative facings | Interior door panels, components |
| Thickness | 0.13 – 1.5 mm | 0.12 – 1.2 mm | 0.20 – 1.0 mm | 0.13 – 1.5 mm |
| Width | 600 – 1,250 mm | 600 – 1,250 mm | 600 – 1,250 mm | 600 – 1,250 mm |
| Surface System | PE, HDP, PVDF | PE, SMP, HDP, PVDF | PVC or PET laminated film | PE, epoxy, polyester |
| Finish | Wood grain, wrinkle, solid, matte | Wood grain, wrinkle, solid, matte | Wood grain, patterned, metallic | Smooth, matte, high gloss |
| Color | RAL / Pantone / custom | RAL / Pantone / custom | Custom film selection | RAL / Pantone / custom |
| MOQ | 5 tons | 5 tons | 5 tons | 5 tons |
- Specifications are indicative. Custom gauges, widths, coating weights, finishes, and film selections are available on request.
Processing Capabilities for Door Supply
Downstream processing is available in-house — orders can be delivered in the format your production line requires, not just as master coils.
Slitting
Coils slit to custom widths from 20 mm and above, with tight width tolerances and clean edges that reduce material waste and feed smoothly into roll-forming lines for slats and skins.
Cut-to-Length
Sheet blanks cut to your door panel dimensions, with flatness and squareness tolerances suitable for direct press or roll-former feeding.
Custom Color Matching
Paint formulation adjusted to match your brand color, RAL code, Pantone reference, or physical sample. A lab drawdown and production sample are provided for approval before the run begins.
Lamination
PVC and PET decorative films applied to the coated or steel surface for wood grain and decorative effects, scratch resistance, or transit protection — supporting interior doors and premium door facings.
Embossing
Structural or decorative emboss patterns applied in-line, including linen, stucco, and custom tooled profiles that add stiffness and hide handling marks on door skins and panels.
Sourcing slit strip or cut-to-length blanks for your door line?
Submit your width, thickness, length, finish, and color specifications. Our team will confirm lead time and pricing within one business day.
Quality Control and Certifications
Everesteel maintains a documented quality management system across every stage of production — from incoming substrate inspection through to final coil labeling and packaging.
In-process controls include:
- Incoming substrate inspection (thickness, coating weight, mechanical properties)
- Paint film thickness measurement at the coating line
- Adhesion testing (cross-cut and T-bend) — critical for panels that are roll-formed and bent
- Gloss and color measurement against approved reference standards
- Salt spray and humidity cabinet testing for selected grades
- Final dimensional check prior to packaging
Test reports and mill certificates are issued with each shipment. Everesteel holds ISO 9001 quality management system certification. Third-party inspection — including SGS, BV, and CCIC — can be arranged on request prior to loading. Our documented controls support door manufacturer qualification, export compliance, and consistent surface quality across repeat orders.
Custom Door Panel Specifications
- Custom Colors and Finishes — Submit a RAL code, Pantone reference, or physical sample. We provide lab drawdowns and production samples for approval before mass production. Wood grain, wrinkle, matte, and solid-color finishes are available based on your door type and application.
- Custom Dimensions and Supply Format — Non-standard coil widths, slit strip, and cut-to-length sheet are available in-house. Share your thickness, width, and profile format, and we will confirm feasibility and lead time within one business day.
- OEM Supply Support — OEM configurations and relabeled supply are available for door brands, panel manufacturers, and distributors sourcing to their own specifications.
- Certified Company
Technical Support and Documentation
- Application Review — Our team reviews your door type, exposure environment, forming process, and finish requirements to recommend the most suitable substrate, coating system, and surface treatment before ordering.
- Documentation and Inspection — Mill certificates, test reports, and export documentation are issued with each shipment. Third-party inspection — including SGS, BV, and CCIC — can be arranged on request prior to loading.
- Fast Inquiry Response — All product, specification, and customization inquiries receive a response within 6 hours.
Related Applications
Everesteel supplies coated steel, laminated steel, and aluminum coil and sheet across a range of industries beyond the door industry. Explore how our factory-direct materials support other applications below.
Home Appliances
Building & Construction
Interior Decoration
Education Boards
FAQs
Q1. Which steel should I use for roller shutter doors versus garage doors?
Roller shutter slats are typically roll-formed from PPGI or PPGL, chosen for coating flexibility around tight radii and durability through repeated cycling. Garage doors more often use PPGL for its stronger corrosion resistance outdoors, with wood grain or wrinkle finishes for appearance. Share your door type, profile, and installation environment, and we will recommend the right substrate and coating.
Q2. Can you supply realistic wood grain finishes for doors?
Yes. We produce wood grain effects both as printed paint finishes on our coating lines and as PVC or PET laminated films for a deeper, more textured look. Laminated wood grain is common for premium interior and entrance doors, while printed wood grain suits garage and shutter panels. Share your reference sample and we will match the closest option.
Q3. Can you match our OEM brand color?
Yes. Submit a RAL code, Pantone reference, or physical sample. Our technical team produces a lab drawdown — typically within 5–7 working days — for your review. Once you approve the color and specification in writing, we schedule production and can provide a production-run sample for final approval. Because we own the coating lines, one supplier is accountable for the color match across every order.
Q4. What is the minimum order quantity for door panel steel?
Our standard minimum order quantity is 5 tons per specification. For custom colors, laminated films, or non-standard dimensions requiring new formulation or tooling setup, we recommend 5–10 tons. We accommodate both sampling requirements and full production volumes — contact us to discuss your project.
Q5. Can you supply material as slit coil or cut-to-length sheet ready for our roll-former?
Yes. We operate slitting and cut-to-length lines in-house. Coils can be slit to custom widths from 20 mm and above, and sheet blanks can be cut to your door panel dimensions with flatness and squareness tolerances suitable for direct press or roll-former feeding. Your material arrives in the format your line needs, not just as master coil.
Q6. Is Everesteel a manufacturer or a trading company?
Everesteel is a manufacturer. Every coil is produced at our own factory in Jiangyin, Jiangsu, on our own coating and processing lines. We do not source product from third-party mills and resell it. Buying factory-direct means your specification is controlled at the source, with direct access to our technical team throughout.
Q7. What is the typical lead time for door panel steel orders?
Standard lead time is 15–25 days from order confirmation and deposit receipt. Custom colors requiring new paint formulation may add 7–10 days for lab drawdown and approval. Expedited scheduling may be available depending on production capacity at the time of order. We confirm your lead time when we respond to your inquiry.
Ready to Source Steel for the Door Industry? Start with the Right Information.
Send us your door type, panel or slat profile, substrate, thickness, width, finish, color reference, quantity, and destination country. Our team will respond with pricing, lead time, and availability within 6 hours.