• Best trim choice in surface durability
  • Excellent paint adhesion for custom color application
  • Spot sanding blend
  • Insect-resistant
  • Impervious to moisture
  • UV stable unpainted
  • Easy to nail, glue, rout or cut
  • Workable with same tools and fasteners as wood


Kommerling was founded in Germany in 1897 and is known throughout the world as the premier PVC sheet manufacturer. We're also recognized for our innovative ideas and world-class technology. Kommerling USA opened a facility in Huntsville, Alabama, in 1997, to produce foamed PVC rigid sheets for the U.S. market, and, in 2002, launched KOMA Trimboards, now known as KOMA Building Products. With more than 100 people in our 100,000 square foot facility, we manufacture virtually all KOMA products for the U.S. market.

Though we have long been known for providing the building industry with PVC trim boards and sheets, (often referred to as PVC wood), KOMA also offers our customers many other building products, including PVC bead board, PVC corner board, PVC molding, and even flooring material for PVC porches.

Huntsville, Alabama PlantThere's never been a better time than now to get to know KOMA. In fact our new management team challenges you to make “The Hard Choice” by choosing KOMA Celuka Building Products. We've recommitted to serving the building community by featuring Celuka building products at the lowest prices ever.

Our unique Celuka extrusion process delivers the hardest, most durable surface of any PVC building product on the market. Your homeowner's investment will be protected, and builders are virtually guaranteed to receive material that's un- marred and 100% useable. KOMA products look, feel and work just like high quality wood, but are impervious to moisture, insects and just about anything else Mother Nature can deal out. Our products won't swell, rot, split, delaminate, cup or craze, even under the harshest of conditions.

You'll notice the difference upon delivery with no mars, dents or scratches. Your builders will experience the KOMA difference as they nail, glue, drill, rout, and cut our trim products using their regular tools. And, while KOMA trim products are UV-resistant and require no paint for protection, the special proprietary surface provides excellent adhesion to any custom 100% acrylic latex paint color with a value of #65 or higher on the Light Reflective Value scale.

Another important attribute of KOMA products is that they are sustainable (Green).


Here's what others have to say about KOMA Building Products:

Sider Lumber is a stocking dealer for KOMA Building Products, because we feel KOMA products are the best PVC products on the market. Sider Lumber is a firm believer in the "Celuka process," and we know KOMA does the best job with it. We can state this confidently, because in 2011, unfortunately, we switched to a different company offering a product using the Celuka process and it proved to be a large mistake. We switched because of loyalty to our distributer, who told us this new brand would be the equal or better than KOMA. This was definitely not the case, and we had a very difficult year.

Thankfully we had the opportunity to switch back to KOMA Building Products and it has been smooth ever since. KOMA products have been flawless. We do not have any call backs for scratches, or dirty boards that cannot be cleaned. We recommend KOMA to all our customers, and to other retailers.

Joseph M. Sider
Sider Lumber & Supply Co.


And here's a list of tradeshows we're exhibiting at. Please stop by and see for yourself how “The Hard Choice” becomes easy with KOMA Building Products.

January 19-21, 2016
NAHB International Builders' Show
Las Vegas
Convention Center
Las Vegas, NV
2015 IBS
February 10-12, 2016
Rhode Island Convention Center
Providence RI
Booth #541
LBM 2016
February 24-26, 2016
ProSales 100 Conference
Hilton New Orleans Riverside
New Orleans, LA
ProSales 100 Conference
February 24, 2016
IDEAS 2016
Valley Forge Casino Resort
King of Prussia, PA
Booth #160
IDEAS 2016
March 18-19, 2016
JLC Live
Rhode Island Convention Center
Providence, Rhode Island
Booth #630
JLC Live
October 6-7, 2016
Remodeling Show
Baltimore Convention Center
Baltimore, MD
Booth # TBD
Remodeling Show

At KOMA Building Products, we love to hear from our customers, and anyone else who's interested in our company, and products. You're welcome to contact us by phone, fax, mail or e-mail, anytime. We'll be happy to answer your questions, send you more information, and help you find your nearest KOMA dealer/distributor.