Custom Millwork by O.B. Williams Company:

O.B. Williams Company has manufactured custom architectural millwork since 1889. Our custom millwork clients include high-end residential and commercial projects throughout the US. O.B. Williams Company is an excellent and cost effective source for top quality custom millwork with CNC machines and advanced in-house knife grinding capabilities. Combining CNC machining with traditional millwork machining methods, O.B. Williams Company’s employees are very proficient at creating complex custom millwork assemblies in virtually any species of wood.


No job is too big or too small. We offer by-the-hour sanding appointments, custom milling of customer-supplied materials and we often run small millwork orders to match a customer’s existing or historic mouldings. Our friendly team can assist you with all your millwork needs.

Visit our moulding and millwork display room just one mile south of downtown Seattle or call us today to discuss your custom millwork project with our team.

Los Angeles Residence by Robert A.M. Stern Architects

O.B. Williams Company was selected to manufacture custom Mahogany windows and doors and exterior millwork for this classically designed residence by Robert A.M. Stern Architects.

RAMSA Partners Robert A.M. Stern and Roger Seifter led the design.
Photo: Peter Aaron / Esto

Over 130 years, we've accumulated 10,000+ moulding profiles.

Don't see what you are looking for?
Please contact us.