High-Performance Exterior & Interior Door Systems
Doors serve as the critical gateway for architectural security, acoustic isolation, and thermal insulation. Selecting high-grade door systems directly reduces HVAC operational energy costs while elevating structural durability and interior aesthetics.
At Building 9, we engineer and supply a comprehensive inventory of heavy-duty steel exterior doors, weather-resistant fiberglass doors, pre-hung Craftsman interior doors, double French entrance doors, and sliding barn door systems. Serving overseas importers, commercial builders, and housing contractors since 1983, our factory-direct bulk supply network ensures unmatched pricing, strict ANSI/WDMA quality compliance, and rapid global logistics support.
Security & Impact Resistance
24-Gauge Steel & High-Density Fiberglass Shells
Thermal Efficiency
Polyurethane Foam Core with Low-E Insulated Glass
Bulk Wholesale Stock
Ready-to-Ship Standard & Custom Dimensions
Global Compliance
ANSI/WDMA & ISO9001 Factory Quality Certified
Pre-Hung Interior Doors & Bi-Fold Systems
Precision-engineered interior door units ready for rapid structural installation. Designed with premium molded composite skins and durable jamb construction.
Craftsman Pre-Hung Door
- Multiple Widths: 24", 28", 30", 32", 36"
- Pre-bored for standard locksets
- Primed smooth white finish
- Heavy-duty 4-9/16" frame jamb
Craftsman Bi-Fold Door
- Widths: 24" ($139) | 30" ($149) | 36" ($169)
- Heavy-duty top tracking hardware included
- Ideal for closets & space-restricted areas
- Smooth operation track system
3-Panel Pre-Hung Door
- Width Options: 24", 28", 30", 32", 36"
- Solid core acoustic dampening available
- Factory paint-ready primed coating
- Precision mortised hinges
3-Panel Bi-Fold Door
- Widths: 24" ($249) | 30" ($259) | 36" ($269)
- Reinforced pivot mechanism
- Smooth glide hardware package
- Matches standard 3-panel interior lines
Insulated Steel & Fiberglass Exterior Doors
Maximum entry security, weatherproofing, and thermal insulation. Built with galvanized 24-gauge steel shells or compression-molded fiberglass for exterior performance.
6-Panel Steel Exterior Inswing
- Material: 24-Gauge Galvanized Steel
- Available Widths: 30", 32", 36"
- High-density polyurethane foam core
- Rot-resistant composite frame sill
6-Lite Craftsman Steel Inswing
- Dual-pane tempered insulated glass
- Available Widths: 32", 36"
- Weather-tight compression seal trim
- Architectural craftsman grid pattern
6-Panel Steel Outswing Door
- Outswing engineered frame configuration
- Available Widths: 32", 36"
- Security non-removable hinge pins
- Ideal for hurricane/wind-load requirements
9-Lite Steel Exterior Inswing
- Insulated 9-lite glass insert panel
- Available Widths: 32", 36"
- Rust-inhibiting primer surface
- Energy Star rated thermal core
3-Lite Craftsman Steel Inswing
- Modern 3-lite top glass layout
- Available Widths: 32", 36"
- Double-glazed safety glass
- Factory primed steel skin
15-Lite Fullview Steel Inswing
- Fullview 15-lite decorative window glass
- Width: 36" Standard Entrance
- Maximum natural light transmittance
- Thermal break aluminum sill
Fullview Mini Blind Steel Door
- Enclosed cordless tilt/raise mini blinds
- Width: 36" Heavy Duty Steel
- Zero dusting maintenance required
- Complete light & privacy control
6-Panel Fiberglass Inswing
- High-impact fiberglass shell (No dent/rust)
- Available Widths: 32", 36"
- Woodgrain textured or smooth surface
- Superior coastal weather performance
Need Bulk Wholesale Pricing & Custom Specifications?
We provide container-load export solutions, custom sizing, and volume pricing tiers for international developers, commercial contractors, and hardware distributors worldwide.
French Doors & Sliding Patio Door Systems
Elegantly detailed patio double door units designed for maximum structural thermal performance, wind load endurance, and architectural light entry.
Clear Fullview French Double Door
- Dimensions: 72" Wide x 80" High
- Heavy Duty 24-Gauge Galvanized Steel
- Left & Right-hand main operative door
- Tempered dual-pane clear glass
Mini Blind French Double Door
- Dimensions: 72" Wide x 80" High
- Built-in internal mini blind mechanism
- Independent dual glass tilt/raise controls
- Heavy-duty astragal door drop-bolts
10-Lite Fullview French Double Door
- Dimensions: 72" Wide x 80" High
- Architectural 10-lite grid mullions
- Complete weatherseal perimeter gasketing
- High security multi-point latch ready
Harvey / Pella Slimline Vinyl Sliding Patio Doors (New Construction)
Includes heavy-duty integral nailing fin, sliding screen door assembly, Low-E argon insulated glass, and smooth ball-bearing roller tracks.
| Product Description | Frame Dimension (W x H) | Rough Opening Needed | Glass & Screen Spec | Wholesale Export Price |
|---|---|---|---|---|
| Harvey Slimline Patio Door (6ft Unit) | 71" x 79 1/2" | 71 1/2" x 80" | Double Pane Low-E Argon / Screen Included | $1,299.00 |
| Harvey Slimline Patio Door (5ft Unit) | 59" x 79 1/2" | 59 1/2" x 80" | Double Pane Low-E Argon / Screen Included | $1,199.00 |
Sliding Barn Doors & Heavy-Duty Track Assemblies
Rustic and contemporary interior space dividers. Crafted from solid natural timber or smooth primed MDF composite panels.
Knotty Pine Barn Door Slab
- 36" W x 84" H ($299) | 42" W x 84" H ($339)
- Solid kiln-dried knotty pine wood
- Unfinished natural grain ready for stain/seal
- Pre-cut bottom guide channel slot
Primed White Barn Door Slab
- 36" W x 84" H ($299) | 42" W x 84" H ($339)
- Multi-layer primed engineered core
- Warp-resistant composite construction
- Ready for top architectural finish coat
Heavy-Duty Barn Door Track Kit
- 78.75" Length ($129) | 96" Length ($199)
- Matte black powder-coated carbon steel
- High-load ultra-quiet ball bearing rollers
- Includes wall spacers, stoppers & floor guide
Custom Architectural & Commercial Door Sourcing
Authorized export supplier for Therma-Tru commercial door systems, custom specs, fire-rated doors, and special project orders.
