PC5 : Bonded 5-Ply Particleboard Core Door

Perfect for your premier projects our 5-ply door is constructed using bonded core construction and the highest quality frame components. Our door facings used to make our PC-5 doors meet or exceed all industry specifications and standards. Available in a wide variety of veneer species and sizes the PC-5 door from Five Lakes Manufacturing offers quality, performance and beauty without compromise.


MC5-90 : Fire Resistant Core Door

Each door is made using what we call mineral core.  There is drywall with fiberglass within the mineral core material.  These doors use specific stile and rail components. The higher the minute rating (45, 60, and 90) use slightly larger stile and rail components to help them achieve these higher ratings. The higher the minute rating indocates a smaller amount of visible glass. There are restrictions regarding lite kit sizes. 


FPC-9 : Particleboard Core Door 9-Ply

Using the same components used to produce our PC-5 doors, our FPC-9 core is not bonded to the stiles and rails. Our door facings used to make our PC-5 doors meet or exceed all industry specifications and standards. Available in a wide variety of veneer species and sizes the FPC-9 door from Five Lakes Manufacturing offers quality, performance and beauty without compromise.


SCL-5 : Structural Composite Lumber Core (Universal Construction)

Structural Composite Lumber (SCL) allows maximum flexibility and strength. SCL doors can be cut down without regard to stile and rail size limitations. SCL doors can also be used when white boards or clothing hooks need to be applied to one surface. FLM recommends that SCL cores be used for all full lite doors. All FLM face veneers and factory finish options are available.


FPC-9 : Primed Hardboard

Perfect for painting, primed hardboard by Five Lakes Manufacturing offers engineered performance perfect for your paint grade project. The components used to manufacture FPC-PHB doors meet the same specifications as our PC-5 doors. FPC-PHB is also has economical advantages over "paint grade" wood doors.


If you would like a Product Data Sheet (PDF) for a specific door locate the door below and click the product name. 

Product Data Sheets


218 Central Road Fredericksburg, VA 22401

Fortress Door Company

(844) 371-2170

Mon - Fri 7:30 AM - 4 PM