The OrePac Knotty Alder 4662 gives contractors a 6-lite Craftsman door that handles both traditional and contemporary projects without switching models. Available in Raised Panel (4662-A) for traditional depth or Flat Panel (4662) for contemporary Shaker/Mission aesthetic, this exterior door combines the character of knotty alder with Low-E insulated glass performance.
Core Specifications and Panel Variants
The 4662 features stile and rail construction with dowel or cope-and-stick joinery, built from 1-3/4 inch thick knotty alder. Standard sizes include three heights (6’8”, 7’0”, 8’0”) and two widths (32” and 36”).
| Specification | Value |
|---|---|
| Wood Species | Knotty Alder |
| Thickness | 1-3/4 inches (standard for exterior) |
| Glass Type | Insulated Glass (IG) with Low-E glazing |
| Glass Options | Clear, Satin Etch (obscure) |
| Panel Options | Raised Panel (4662-A) or Flat Panel (4662) |
The panel choice changes the door’s character completely. The Raised Panel version delivers traditional, ornate looks with depth and shadows. The Flat Panel offers cleaner, more contemporary Shaker or Mission aesthetic. Both versions use the same frame and glass configuration — contractors stock one door series but satisfy two distinct architectural styles.
Installation Requirements and Montana Considerations
OrePac’s overhang formula demands Y = 1/2 X (where Y is overhang depth and X is height from door bottom to overhang). For a standard 8-foot ceiling with 6’8” door, that means a 4-foot overhang minimum. Montana’s intense UV exposure and temperature swings make this non-negotiable.
All six surfaces require 2-3 coats of high-quality exterior finish with UV inhibitors — not just the face and edges. Skip the top or bottom rail and warranty coverage disappears. Doors need 24-48 hours acclimation to local humidity before hanging. Montana’s dry climate makes this critical for preventing warpage.
Three hinges support doors up to 7’0”, while 8’0” doors require four hinges. The extra hinge on taller doors handles the additional weight of solid knotty alder construction.
Material Reality Check
Knotty alder costs less than Douglas Fir and provides more rustic ‘character’ look, though it is softer and requires diligent finishing. That softness matters during installation — dropped tools dent it easier than fir. Customer feedback confirms the authentic rustic appearance and affordable premium positioning, but the wood’s prone to dents if not handled carefully.
Some doors arrive with loose knots that require epoxy or filler. Not a defect — that’s the nature of knotty alder. Contractors should inspect each door at delivery and handle knot repairs before finishing.
The Low-E insulated glass comes standard, meeting Montana energy codes without upgrades. The 6-lite design provides ample natural light while maintaining thermal performance through the dual-pane IG unit.
Frequently Asked Questions
Q: What’s the actual difference between the OrePac 4662 Raised Panel and Flat Panel versions?
The OrePac 4662-A Raised Panel features hip-raised panels with traditional depth and shadows, typically using ovolo sticking for a classic Craftsman look. The 4662 Flat Panel offers a clean Shaker or Mission aesthetic with square sticking, giving a more contemporary appearance while maintaining the same 6-lite glass configuration and 1-3/4 inch thick knotty alder construction.
Q: How long does the OrePac warranty last and what voids it?
OrePac provides a 1-year limited warranty for exterior applications and a 5-year limited warranty for interior use. The warranty becomes void if you fail to seal all six sides immediately after fitting, lack adequate overhang (must be at least 1/2 the height of the door-base-to-ceiling distance), expose the door to direct sun or rain without protection, or use dark colors that absorb excessive heat.
Q: What glass options come with the OrePac Knotty Alder 4662?
The OrePac 4662 comes standard with Low-E insulated glass (IG) in a 6-lite configuration, with options for clear or satin etch (obscure) glass. The Low-E coating provides energy efficiency without requiring upgrades, and the insulated glass unit delivers thermal performance suitable for exterior applications.
Q: What sizes does the OrePac 4662 door come in?
The OrePac Knotty Alder 4662 is available in three heights (6’8”, 7’0”, and 8’0”) and two widths (2’8” or 32 inches, and 3’0” or 36 inches). All doors are 1-3/4 inches thick, which is standard for exterior door applications.
Q: Is knotty alder durable enough for an exterior door compared to other wood options?
Knotty alder is generally more affordable than Douglas Fir but is a softer wood that requires diligent finishing and careful handling to prevent dents. The OrePac 4662 may have loose knots requiring epoxy or filler, and all surfaces must be sealed with 2-3 coats of high-quality exterior finish with UV inhibitors to ensure durability.
Q: Does the OrePac 4662 work with standard door hardware?
The OrePac 4662 accepts standard 2-3/8” or 2-3/4” backset locksets and works with standard compression weatherstripping and adjustable sills. Heavy-duty hinges are recommended due to the solid wood weight, with 3 hinges required for doors up to 7’0” and 4 hinges for 8’0” doors.
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