MDF 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.

Stile & Rail Construction

MDF stile & rail door cutaway — no raised grain or cracking; smooth surface ideal for painting; reduces sound transmission for added privacy; panels that won't shrink; exceptional detail with crisp, clean lines; more stable than wood.

Cross section showing TruStile MDF stile & rail door construction

  • Made to order and built to any size and style.
  • Built with genuine stile and rail construction — never routed or stamped with poplar Wedge Edge® provides a secure mount for hardware.
  • 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.

Specifications

Thickness
1-⅜", 1-¾" and 2-¼"
Maximum Size
48" × 120"
Core
Made with solid, super-refined MDF, with poplar Wedge Edge®. Laminated veneer lumber (LVL) stile/rail options.
Face
Super-refined MDF
Options
20-, 45-, 60- and 90-minute fire ratings.
See fire door section for more detail.
Warranty
Life of original installation.
See warranty section for more detail.
Factory Finish
Low-VOC primer

Flush Construction

MDF flush door cutaway — smooth surface ideal for painting; reduces sound transmission for added privacy; won't shrink, expand or warp; no raised grain or cracking; more stable than wood.

Cross section showing TruStile MDF flush door construction

  • Made to order and built to any size and style.
  • Laminated Strand Lumber (LSL) core with poplar Wedge Edge® provides a secure mount for hardware.
  • 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.

Specifications

Thickness
1-⅜", 1-¾" and 2-¼"
Maximum Size
48" × 120"
Core
Laminated strand lumber (LSL) core with poplar Wedge Edge®.
Face
Super-refined MDF
Options
20-, 45-, 60- and 90-minute fire ratings.
See fire door section for more detail.
Warranty
Life of original installation.
See warranty section for more detail.
Factory Finish
Low-VOC primer