Primed MDF Interior Doors

Primed MDF Interior Doors
From left: SQ-0300-D045-M, SQ-0200-D008-M

Sun Mountain manufactures a line of Primed MDF interior doors—an economical alternative to painted wood. This product is 100% made in the USA at Sun Mountain’s northern Colorado factory and is of the highest quality.

The doors are 1-3/4″ thick and are stocked in standard sizes, in the following designs.

MDF Door Designs

Primed MDF Interior Doors Designs
*4-panel (equal) design available in 6′8″ height only; 5-panel (equal) design available in 8′0″ height only

Primed MDF Interior Door Sizes

A: 5-5/8″ top rails
B: 9-1/8″ kick rails
C: 5-3/4″ stiles
D: 8″ lock rails
E: 5-3/4″ intermediate rails
F: 4-5/8″ intermediate rails

Sun Mountain’s MDF interior doors are true stile and rail construction with engineered components made with Timberstrand® LSL core, sandwiched by 1/8″ thick MDF veneers and solid Poplar edge caps (for hinge mounting). This superior design is resistant to warp.

MDF Interior Door Profile Illustration

1-panel MDF Interior Door

The product is pre-primed at the factory, with optional solid Poplar primed jambs. The company ships pre-hung units nationwide, direct to the home or jobsite.

Why buy Sun Mountain’s Primed MDF interior doors?

  • Direct pricing, much less expensive than distributed products
  • Contemporary designs
  • High quality, with engineered stile and rail components resistant to warp
  • Short lead times (standard sizes in stock)
  • Optional solid Poplar primed jambs