Finely-Crafted. Bespoke Design.


Castlewood Doors and Millwork blends old world craftsmanship with original design to create finely-crafted door systems. Custom products represent quality,  precise design and development. With dedication and experience, wood products are purchased thoughtfully and used completely, as environmental responsibility and the support of sustainable forests is prioritized. 




Castlewood Doors and Millwork manufactures and designs interior, exterior, and specialty doors. Available in all shapes, sizes, wood species, and configurations. We often have requests to combine several materials like metal and glass or steel and wood. Each piece is designed and crafted with experience, precision, and care. Clients can expect to have freedom and flexibility in the design process, and to get exactly what they want.





Castlewood Doors are built using engineered construction and experienced craftsmanship. Door stiles have a warp resistant timberstrand core along with a resawn solid wood veneer ranging from 1/8” to 1/4“ thick. Interior door panels are solid wood. Exterior panels are separated by a plywood core to allow freedom of movement to accommodate the different climates of the interior vs the exterior of your home. All doors are constructed using 1/2” x 4” dowels in addition to the mortise and tenon jointery. Constructed using Formaldehyde-free glue.


The Foundry

We work with the industries top industrial designers. There is always change and fluctuation throughout the design process as we create a client’s vision—we embrace the revolution. Let's work together.


Wood Species

FSC certified available

Premium Knotty Alder, Select Alder, Red and White Oak (plain slice, rift cut, and quarter sawn), Rustic Walnut, Select Walnut, Rustic Cherry, Select Cherry (free of sapwood available), Maple, Knotty Pine, Clear Pine, African and Honduras Mahogany, Fir, Mesquite, and Poplar (typically used for paint grade).


its all in the details

Your project will come to life through a process of visualizing, sketching, drawing. 



At Castlewood Doors, we believe a true community shouldn't be gated or fenced in – it should seamlessly meld into its surroundings. That's why we chose Colorado's beautiful Denver & Crested Butte neighborhood for our showroom locations.



5040 East 41st Avenue - Denver, CO 80216