The details are what make a house feel like a home. From crisp exterior trim to beautifully finished interiors, craftsmanship stands out the moment you walk through the door. Builders who take pride in their work count on products that reflect their skill, which is why so many choose WindsorONE.
Every piece of WindsorONE trim is manufactured straight, tight, and true, complete with an industry-leading prime coat. These high standards have defined WindsorONE since 1972 and helped establish them as a leader in both interior and exterior trim.
WindsorONE is proudly manufactured in the USA, with mills located in Surry, VA and Willits, CA. You can feel confident telling your customers they’re getting truly American-made material, carefully produced from forest to jobsite. WindsorONE oversees the entire process to ensure every board delivers the same level of precision and quality that builders expect.
Designed with clean technology, WindsorONE products are durable enough for the exterior and safe and healthy for interior installations. Quality that shows, craftsmanship that lasts.
Craftsman Style Exterior Trim
Exterior Protected WindsorONE Boards
WindsorONE Exterior Trim Boards, Tongue & Groove, Shiplap, and Exterior Moldings feature Tru-Core® protection for superior defense against rot, insects, and mold for 30 years. These primed wood boards are built for the elements with a patented Weather Resistance System, yet they also carry a Gold Indoor Air Quality rating, making them an excellent choice for both exterior and interior applications.
Protected Trim Boards come in two finishes: • S4SSE – Smooth on all four sides with square edges • S1S2E – Rough-sawn face with smooth sides and eased edges (availability varies by region)
Protected Tongue & Groove Boards include multiple beadboard and V-groove options, along with a reversible 1x6 Plantation profile featuring either a smooth or rough-sawn face.
Protected Moldings are offered in a range of profiles designed for exterior detailing, including shingle mold, brick mold, and sill/water table applications.
Interior WindsorONE Boards
WindsorONE offers a full range of interior solutions including Trim Boards, Tongue & Groove, Shiplap, and Nickel Gap profiles. Available in both Protected and Traditional options, every WindsorONE interior board is crafted to deliver crisp lines, smooth finishes, and lasting performance indoors.
Trim Boards S4SSE boards (smooth on all four sides with square edges) provide a clean, versatile foundation for interior millwork applications.
Tongue & Groove Boards Offered in multiple Beadboard, V-Groove, and Nickel Gap configurations to support everything from cottage charm to contemporary styling.
Nickel Gap & Shiplap Boards Nickel Gap boards feature a consistent 1/8" reveal for that modern, shadow-line detail. Shiplap boards complement the look, giving installers the freedom to set their own gap, and are reversible with smooth or rough-sawn faces.
Classic American Molding Collection A curated architectural series with historically inspired profiles including Classical Colonial, Greek Revival, Classical Craftsman, Craftsman Variations, Colonial Revival, and Flat Stock designs. Perfect for elevating interiors with authentic character and handcrafted appeal.
Factors that affect the durability of wood on the exterior & how to design/build projects that last – 1 HSW CE
Please join us for an AIA CEU program presented by Patty Woodman of WindsorONE.
Strengthening the exterior envelope of a home is an essential part of long-lasting design, and today’s building professionals face more choices than ever. This program will explore:
• How to increase durability and protection against the elements • Best practices for modern exterior installation • Key differences between today’s most common wood treatment methods
Windsor Mill’s AIA-accredited continuing education course dives into these topics and more, equipping you with the knowledge to design an exterior envelope that is both durable and healthy for the home.
LEARNING OBJECTIVES
Learn how biological agents effect wood
Learn the effects physical deterioration has on wood products
Study proper installation practices & avoid mistakes
Evaluate different methods for increasing the durability of your wood products
Allegheny Millwork & Lumber will be CLOSED on Thursday, November 27th in observance of Thanksgiving Day.
🎄 2025 Ben Avon Holiday House Tour
Saturday, December 6th Day Tour: 10 AM – 4 PM Candlelight Tour: 6 PM – 9 PM
Presented by the Avon Club Foundation of Ben Avon, PA, the annual Holiday House Tour is one of the most anticipated events of the season!
Step inside a selection of beautifully decorated homes, each adorned to highlight its unique architectural charm and the personal style of its owners. Homeowners graciously share stories about their spaces—from historic details and thoughtful restorations to modern updates—offering a rare glimpse into the evolution of these timeless homes.
Guests will also enjoy a written history of each home and the Ben Avon community, providing a meaningful connection to the area’s rich past and vibrant present.
✨ We’re proud to share that Allegheny Millwork & Lumber is once again a sponsor of this cherished community tradition.
wedi is a German-origin innovator in waterproof, tile-ready shower systems and modular wet-room components. In the U.S., their offering spans complete shower kits, pre-sloped bases (point, linear, and curbless), tile backer panels, curbs, benches, niches, and all the sealants and accessories needed for a fully waterproof installation from framing through finish.
Since expanding into Batavia, Illinois in 2017, wedi has been manufacturing its signature waterproof building panels domestically and supplying U.S. customers with reliable lead times and local support. With primary factories in Germany and Illinois, wedi emphasizes modular simplicity, proven system performance, and professional backing through installer training, certification, and long-term warranties.
Allegheny Millwork & Lumber is now a wedi stocking dealer, expanding our solutions for builders, designers, and remodelers who expect accuracy, durability, and peace of mind in every shower and wet-room project.
The wedi Advantage at AM&L
wedi’s waterproofing and shower system solutions are a natural fit for Allegheny Millwork & Lumber’s mission of delivering complete, high-quality systems, not just materials. From precision engineering to installer training and long-term performance, wedi supports the level of craftsmanship and service our customers count on. By offering wedi, AM&L empowers builders, designers, and remodelers to deliver durable, worry-free spaces that reflect innovation, reliability, and true attention to detail.
Halo Exterra: 1/2"x48"x96" & 1"x48"x96"
Halo Interra: 1/2"x48"x96" & 1"x48"x96"
Why Choose Halo Board?
From below-grade to above-grade, inside and out - Halo is the Advanced Graphite Insulation System engineered for precision performance. Each product in the system is purpose-built for a specific application.
Halo combines a high-performance, low-carbon graphite polystyrene (GPS) core with advanced, application-specific laminate surfaces.
Engineered GPS insulation, tailored to the job
Up to 80% lower GWP than XPS, with better moisture handling than EPS
Long-lasting R-value - no off-gassing, no water wicking
Smarter specs. Better Builds.
For more information or pricing please contact us. 412-431-4224 phone or text or email info@alleghenymillwork.com.
AM&L is the Best of the Burgh!
We're proud to announce that we’ve been voted Best of the 'Burgh in Building Products and Windows!
A huge thank you to everyone who supported us — your votes and continued trust mean the world. We're honored to be recognized and remain committed to delivering the best in quality and service.
From wood and MDF to WindsorONE and Royal & Duration, our wide selection fits every style and project. With over 350 profiles in stock, your perfect look is just a visit away. Let’s bring your vision to life!
Call an Allegheny Millwork & Lumber Sales Associate at 412-431-4224.
~ New Hires ~
Kortney Zoelle - Kitchen Department Manager
Josh Knittle - Window Department Sales
~ New Position~
Nancy Sudsina - Kitchen Project Manager
Allegheny Millwork & Lumber, 1001 Muriel Street, Pittsburgh, PA 15203, USA, 412-431-4224
