Interior Slab Doors for Residential & Commercial Projects
Our interior slab doors are supplied as door panels without frames, hinges, or pre-installed locksets, giving distributors, contractors, millwork companies, and project buyers greater flexibility in door schedules and installation.
We manufacture solid core, hollow core, molded panel, flush, and applicable fire-rated slab doors in standard and custom sizes. Core construction, surface finish, edge treatment, machining, and packaging can be specified according to project requirements.
Product Portfolio
Solid Core Interior Slabs
Engineered wood or solid mineral core wrapped in high-density fiberboard (HDF). Built for sound insulation, durability, and commercial traffic.
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Hollow Core Interior Slabs
Lightweight honeycomb paper core with HDF or plywood skins. Cost-effective for high-volume residential developments.
02
Molded Panel Slabs
2-panel, 3-panel, and 6-panel textured or smooth surface options for classic or transitional interior aesthetics.
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Flush Interior Slabs
Minimalist, completely flat surfaces covered in natural wood veneer, high-pressure laminate (HPL), or paint-grade primer.
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Fire-Rated Interior Slabs
Mineral-core slabs certified for 20-minute, 45-minute, 60-minute, and 90-minute fire barriers in multi-family and commercial builds.
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Quick Technical Specifications
|
Parameter |
Standard Range |
Custom Options |
|
Thickness |
1-3/8" (35 mm), 1-3/4" (44 mm) |
Other thicknesses available upon request |
|
Width |
24"–36" (610–914 mm) |
Custom widths available |
|
Height |
80", 84", 96" (2032, 2134, 2438 mm) |
Custom heights available |
|
Core Options |
Hollow core, particleboard, stave lumber, tubular, mineral core |
Project-specific construction |
|
Surface Options |
Veneer, HPL, melamine/PVC, paint-grade primer |
Custom colors, textures, and finishes |
|
Machining |
Lock, latch, hinge, flush bolt preparation |
Project-specific CNC machining |
|
Acoustic Options |
Solid and hollow core configurations |
Acoustic construction available according to project requirements |
|
Moisture Control |
Kiln-dried wood components |
Moisture-resistant constructions available |
Core Construction & Material Options
Different projects require different combinations of weight, durability, acoustic performance, machining requirements, and cost. We offer several core and edge construction options:
|
Construction |
Typical Advantage |
|
Particleboard Core |
Continuous core structure with good impact resistance and sound-blocking performance |
|
Stave Lumber Core |
Kiln-dried wood strips providing good screw-holding capability and dimensional stability |
|
Tubular Core |
Reduced-weight construction for applications where weight and material efficiency are priorities |
|
Mineral Core |
Used for applicable fire-rated door constructions |
|
LVL Stiles & Rails |
Engineered edge construction for dimensional stability and hardware preparation |
Surface Finish & Design Options
Natural Wood Veneer
Quarter-cut or crown-cut veneer options include White Oak, Walnut, Teak, Sapele, and Ash, with clear protective coatings available.
High-Pressure Laminate (HPL)
Durable HPL surfaces provide resistance to impact, scratching, and routine cleaning, making them suitable for demanding commercial and institutional interiors.
Melamine & PVC Finishes
Cost-efficient decorative surfaces with woodgrain and solid-color options for standardized residential and commercial projects.
Paint-Grade Primer
Factory-applied primer provides a prepared surface for final painting on site and supports projects requiring a consistent paint finish.
Multi-Family Residential Apartments: High-volume, standardized flush or molded slabs built for cost efficiency and fast site installation.
Commercial Offices & Corporate Spaces: High-STC solid core slabs styled with architectural wood veneers or glass-lite cutouts.
Hospitality & Hotels: Fire-rated (20/40/60 min) entrance and connecting door slabs with strict sound control between rooms.
Educational & Healthcare Facilities: Heavy-duty HPL slab doors with high impact resistance and easy-clean antimicrobial surfaces.
Custom Slab Door Manufacturing
We support project-specific customization from door construction and dimensions to factory machining and packaging.
Dimensions & Construction
Custom widths, heights, and thicknesses
Core construction selection
HDF, plywood, veneer, HPL, and other face options
Hardwood, LVL, or PVC edge treatments
Factory Machining
Lock and latch preparation
Hinge mortises
Flush bolt preparation
Glass lite cutouts
Louver cutouts
Project Identification
Unit, room, floor, and building labeling
Private-label and branding requirements
Project-specific packing instructions
Raw Material Acclimatization: Kiln-dried timber and engineered wood panels are stored in climate-controlled areas to stabilize internal moisture at 8–10%.
Core Lamination: High-frequency hot pressing secures the core material between HDF/plywood skins using moisture-resistant PUR adhesives.
Precision CNC Sizing: Automated double-end tenoners trim slabs to square dimensions with tight tolerances within ±0.5 mm.
Surface Sanding & Coating: Multi-stage orbital sanding prepares the slab surface for UV coating or lacquer spraying in clean-room environments.
Quality Control & Testing
Every production batch undergoes batch testing in our internal testing lab:
Dimensional & Squareness Tolerance
Verified using digital laser calipers and squareness gauges (diagonal variance < 1.0 mm).
Delamination & Adhesion Test
Accelerated boil and freeze cycles verify PUR glue line structural bond integrity.
Warp & Flatness Checks
Straightedge gauges verify slab deflection across total height stays under 3 mm per door length.
Screw Hold Strength
Internal pull-out testing ensures stiles and top/bottom rails hold heavy commercial hardware.
OEM & Project Support
Private Labeling & Branding
Custom edge-stamping, laser-etched face labels, and branded protective corner guards.
Job-Site Packaging
Slabs can be grouped, palletized, and labeled per floor, building, or unit number according to your project schedule.
BIM & CAD Assets
BIM (Revit) objects and DWG detail drawings ready for architects and project specifiers.
Packaging & International Delivery
Export Palletization
Solid wooden or fumigation-free ISPM-15 plywood pallets built for forklift unloading.
Protective Wrapping
Slabs feature plastic corner protectors, PE stretch wrapping, and corrugated top cover boards.
Container Loading
Vertical or horizontal loading optimized to fit up to 800–1,000 slabs per 40ft HQ container depending on thickness and packing style.
Why Choose Our Factory
90,000+ Slabs Monthly Capacity
Automated German Homag CNC machinery yields fast production turnarounds and consistent tolerances.
100% Factory Direct Sourcing
Direct raw material purchasing lowers overall unit costs while maintaining structural consistency.
Advanced Production Equipment
We operate three production lines equipped with a 2,000-ton hot press, a PVC lamination line, an automatic panel cooling machine, ten 60-ton door panel presses, eight CNC panel cutting machines, two CNC four-sided saws, ten door panel engraving machines, and other assorted equipment.
Certificate
Our factory is certified to ISO 9001, ISO 14001, and ISO 45001. We also hold CE certification for the EU market and CPR certification for 30-minute fire-rated doors. In addition, we hold a utility model patent for impact-resistant wooden doors.
As one of the most professional interior slab door manufacturers and suppliers in China, we are committed to providing high quality customized service with competitive price. Welcome to wholesale bulk cheap interior slab door made in China here from our factory. If you have any enquiry about quotation, please feel free to email us.