#1 Manufacturer of Vinyl Siding in North America

Exceptional durability, beautiful color choices, and an industry
leading warranty make Ply Gem siding the smart choice for homeowners

Vinyl Siding


For decades, Variform premium, high-performance vinyl siding has had the confidence of professionals and homeowners alike, earning one of the highest satisfaction rates in the industry. It’s virtually maintenance free and designed to withstand nature’s extreme weather. For the ultimate creative power, Variform offers the broadest range of colors and styles. Most importantly, Variform vinyl siding is backed by a limited lifetime transferable warranty from a company you can trust.

When to Choose Vinyl

If you’re looking for a beautiful, durable, virtually maintenance-free siding choice, Ply Gem vinyl is your choice. We offer vinyl siding in a variety of rich colors, realistic textures, and popular styles. It never needs painting and lasts a lifetime. Plus, you can choose a version that features a layer of insulated foam for long-lasting energy efficiency.

Vinyl Siding

Variform Home Siding

 Variform is constantly applying new techniques and proprietary innovations to the home siding manufacturing processes in order to improve and develop products that are easier to install and maintain. Today, Variform is a part of the Ply Gem Siding Group, the number one manufacturer of vinyl home siding in North America to independent distribution. This enables Tri-State Wholesale Building Supplies to offer an unmatched depth of experience in our industry, as well as a full line of complementary and coordinating exterior products that are strong, beautiful, and built to stay that way. Variform’s product line consists of eight distinct vinyl siding product lines, and two specialty panel product lines. Each has its own unique architectural design and is confidently backed with a Limited Lifetime Warranty. 

Variform vinyl siding products are confidently manufactured and certified based on the Vinyl Siding Institute-sponsored Certification Program. 

At Tri-State Wholesale Building Supplies, we carry quality Variform vinyl products for your home—but more importantly, for your lifestyle. All of our low-maintenance vinyl products, from siding and accessory products like soffit and trim, to shakes and scallops, allow you to spend your precious time enjoying your home while our products protect it.
Variform has recently launched the Variform Design Studio, an interactive tool that allows you customize a home with Variform products virtually, altering the look of a digital home with the click of a mouse. Change siding styles and colors, add accessories, and more. Click here to open the Variform Design Studio.