AG Millworks manufactures handcrafted door systems built for wide openings and indoor-outdoor living, with configuration options for custom residential and light commercial projects. Golden State Lumber and Showroom supplies AG Millworks windows and doors for replacement projects, custom homes, multifamily buildings, and light commercial construction throughout Northern California.












AG Millworks specializes in manufacturing handcrafted folding, sliding and swing door systems made for luxury outdoor living at our factory in Ventura, California. Industry-leading designs, unmatched quality, advanced technology, and superior customer service are the reasons architects, designers, builders, and homeowners have chosen AG Millworks for their luxury home design projects since 1986. Proudly offering multiple door stile/rail profiles: Slimline | ultra-modern, Euro | contemporary or Traditional | classic; 19 varieties of wood species and outstanding energy performance.
AG Millworks - Zero Corner Bi-Fold Door System
AG Millworks - Handcrafted Doors for Luxury Outdoor Living
AG Millworks - Big Daylight Bi-Folds - Less Panels, BIG DAYLIGHT
Installation of Retractable Accordion Screen After KD Frame Assembly
Operating a Multi point Lock- AG Millworks
Repairing a Jambed Multi point Lock- AG Millworks
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Golden State Lumber has been serving Northern California builders, contractors, architects, and homeowners for decades. We combine quality building materials with knowledgeable service to help customers find the right products and solutions for projects of every size.
Many customers return because they value consistent service, knowledgeable support, and access to quality building materials and trusted brands. Our goal is to build long-term relationships by helping customers complete successful projects, no matter the size.
If you don’t see the product you need, contact our team. Through our extensive supplier network, we can often source specialty, custom, and hard-to-find products and help you find the best solution for your project.