Pine vs. Oak vs. MDF Interior Doors: What Contractors Actually Use
By WholesaleDoorHub Team · May 2026
Direct answer: Hollow core MDF is the standard for interior residential doors (STC 20–25, $85–$145). Solid core is the upgrade for acoustic separation (STC 28–34, $145–$280). Solid wood stile-and-rail is the premium option for high-end residential ($220–$580).
Pine vs. Oak vs. MDF: What Contractors Actually Use
This is the most practical material question for interior door procurement:
| Material | STC Rating | Weight | Paintability | Stainability | Wholesale Cost |
|---|---|---|---|---|---|
| MDF hollow core | 20–25 | 25–35 lbs | Excellent | Poor | $85–$145 |
| MDF solid core | 28–34 | 55–75 lbs | Excellent | Poor | $145–$220 |
| Solid pine | 25–30 | 45–65 lbs | Good | Good | $195–$340 |
| Solid oak | 27–32 | 60–80 lbs | Good | Excellent | $280–$520 |
| Solid maple | 28–33 | 65–85 lbs | Good | Good | $320–$560 |
When to Use Each Material
MDF Hollow Core
Use when: Budget is the primary constraint. Interior, low-traffic doors. Rental properties, entry-level residential, investor-grade renovation.
Avoid when: High-traffic areas (front entry, home office), acoustic separation is required, or the client wants a stained finish.
MDF Solid Core
Use when: Acoustic separation matters (home office, master bedroom, media room). Client wants the feel of a solid door without the cost of solid wood.
Best value upgrade: The cost premium over hollow core ($60–$80 per door) is almost always justified by the acoustic improvement.
Solid Pine
Use when: Client wants a stained finish. Premium residential where hollow core would feel cheap. Craftsman or farmhouse-style projects.
Procurement note: Pine is the most affordable solid wood option. It is softer than oak and more prone to denting, but acceptable for most residential applications.
Solid Oak
Use when: Client wants the best quality solid wood door. High-end residential. Projects where the door will be a design feature.
Procurement note: Oak is significantly heavier than pine. Verify hinge spec — 3 hinges are required for oak doors over 80" tall.
Acoustic Performance Guide
For projects where acoustic separation is a design requirement:
| Application | Minimum STC | Recommended Door |
|---|---|---|
| Standard bedroom | STC 25 | Hollow core MDF |
| Master bedroom | STC 30 | Solid core MDF |
| Home office | STC 32 | Solid core MDF |
| Home theater | STC 38+ | Solid core + acoustic seal |
| Between units (condo) | STC 45+ | Solid core + acoustic jamb |
FAQ
Q: What is the best material for interior doors?
A: For most residential applications, solid core MDF offers the best balance of cost, acoustic performance, and durability. Solid wood is the premium choice for high-end projects.
Q: Do hollow core doors feel cheap?
A: Hollow core doors feel noticeably lighter than solid core. For client-facing spaces (master bedroom, home office), solid core is the better specification.
Q: Can MDF interior doors be stained?
A: No. MDF does not accept stain — it absorbs unevenly and looks blotchy. If a stained finish is required, specify solid wood.
Get Wholesale Pricing
48-hour quote turnaround. No minimum order on in-stock items.
More Wooden Doors Resources
Product Category
Shop Wholesale Wooden Doors
This guide covers wooden doors specifications and pricing. Visit the full product page for contractor pricing, specs, installation tips, and bulk order options.
View Wholesale Wooden Doors PricingAlso Available