About CDA CDA, the Northwest's Commercial interiors experts since 1980, offer a diverse package of services. Our philosophy is based on offering you a complete package: Professional planning and design, High Quality Product Sales, and Professional Installation and Project Management. Few companies can blend all these areas together and deliver a complete package as well as CDA. If you find that your particular needs focus on only one or two of these core services, CDA will structure a package to meet your needs.       Flexibility As one of the largest dealers of quality commercial furnishings in the Pacific Northwest, we represent companies such as Herman Miller, Global, VIA Seating and Gunlocke, manufacturers recognized as leaders in the industry, as well as hundreds of other manufacturers that meet all needs throughout your facility. Our package of products are chosen to allow maximum flexibility in design and budget requirements.