TruStile MDF Interior Door Construction
TruStile pioneered the use of medium density fiberboard (MDF) as a preferred material for painted door applications, realizing its many advantages over alternative materials like natural wood. Since we introduced our MDF doors to the market, we’ve seen many impersonators.
What is MDF?
MDF is an engineered wood product made from compressed wood fibers bound together with resin. The durable and homogeneous construction of MDF resists warping, cracking and splitting and outperforms natural wood doors for painted applications.
![cross section of TruStile MDF door showing stile and rail construction](/sites/default/files/images/construction/trustile-mdf-construction.png)
Cross section showing TruStile MDF door construction
- Made to order and built to any size and style.
- Built with genuine stile and rail construction — never routed or stamped.
- Made with solid, super-refined MDF that provides a smoother painting surface than pine, poplar or lower-grade MDF alternatives.
- Engineered for maximum stability and durability — won’t shrink, expand or warp when exposed to environment.
- More affordable than wood doors.
- Third party certified by Scientific Certification Systems to contain a minimum 69% pre-consumer recycled wood content.
![Detail of the Wedge®, a hardwood edge which provides screw-holding power for hinges](/sites/default/files/images/construction/wedge-detail.png)
Hardwood Wedge Edge System
TruStile MDF doors come standard with The Wedge®, our field-proven hardwood edge system. Designed to stand up to daily use, The Wedge provides superior rigidity, stability and screw-holding power.
![technical cad drawing of a customized door, a TS3140 common arch pair, desiged with the TruStile Door Design Tool](/sites/default/files/images/construction/custom-dimensions.png)
Built to Your Exact Specifications
Every TruStile door is made to order, each built to the exact style and size you require. TruStile still builds its MDF doors using traditional stile and rail construction, a method usually reserved for wood doors. Our solid MDF doors are never routed or filled with cheap core materials like those of our competitors. Instead, each door is constructed to provide superior, architecturally correct details and an unequaled finishing surface.
![Detail of corner section of a residential MDF door showing the smooth surface which holds paint better than wood doors](/sites/default/files/images/construction/mdf-corner-sample.png)
Perfect for Painted Doors
Why paint an expensive wood door? MDF doors are ideal for painted applications and make an affordable alternative to wood doors. The super-refined MDF TruStile uses provides a smoother painting surface than pine, poplar or lower-grade MDF alternatives. Each MDF door has been engineered for maximum stability and durability. They won’t shrink, crack, expand or warp when exposed to environmental conditions.
Recycled Content
TruStile interior MDF doors are SCS certified to contain a minimum 69% pre-consumer recycled wood content — qualifying them for Recycled Content LEED credits.
![A TruStile TS5000 residential exterior door made from MDF with white lami glass](/sites/default/files/images/exterior/ts5000.jpg)
Exterior Doors
Many TruStile MDF door styles are available for exterior use. Insulated glass is available in most glass styles. Check with your TruStile dealer for details.