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Innovating Quality Wood Products Since 1922.

We are known for producing the highest quality pressure-treated wood products that meet the needs of an ever-changing building environment.

KDAT Brown Treated Wood

MicroPro MCA Brown Treated Wood Products from Northern Crossarm provide rich, beautiful, natural wood tones and a finished look.

KDAT (Kiln Dried After Treatment)

Kiln Dried After Treatment, or KDAT is a process that removes excess moisture from lumber, minimizing the tendencies of wood to shrink, cup and warp.

Northern KDAT Decking

Uniquely designed in-house for superior stability while stress relief cuts help maintain a smooth, even surface.

Revere Deck Framing

Revere is the finest KDAT deck framing. Made for both composite and wood surfaces, it’s more stable, so you can focus less on deck warps and callbacks, and more on the quality of your deck builds.


Why Choose KDAT Vs. Pressure Treated Lumber?

Kiln Dried After Treatment (KDAT) lumber from Northern Crossarm is the rich, finished brown wood that’s lighter, easier to handle, saw and plane. With minimized moisture content, you get a 100% finished, stable product with the added benefits of reduced warps, cups, twists, checks & cracks common with traditional “wet” or “green” treated lumber. You get the same rot-resistant protection of pressure treated wood, but with the added benefit of drying for improved performance. Are you ready to make the switch to KDAT?

How Much Will My Wood Deck Cost?

Estimate the Lumber Cost for your New KDAT Deck.


Featured Product: KDAT Brown Treated Wood

KDAT Brown Treated Wood features a rich, brown finish that not only looks great, but performs exceptionally well thanks to our treating process. By kiln drying after treatment, we’re able to improve both the performance and stability of pressure-treated wood. The finished product is lighter, easier to cut, saw and plane. Plus, it’s browned after treatment, there’s no need for the homeowner to wait for painting or staining. 

Interested In Stocking Our KDAT Lumber?

Learn About Our 90-Day Stocking Dealer Program.


Our Operations & Treatment Processes

Northern Crossarm Operations

Pressure-Treated Wood Process

Kiln Dried After Treatment


About Northern Crossarm

When Joseph Bischel founded Northern Crossarm Co. Inc. in 1922, it is doubtful he ever expected his company to grow from a one-man manufacturing firm into one of the leading wood treating companies in the Great Lake States area. Today, Joe Bischel’s company is owned and operated by his grandson Pat Bischel.  The principles founded by Joseph Bischel in the mid 1920s of honest, hard work, integrity and willingness to serve are the cornerstone of the company’s foundation.  Together with the contributions of its dedicated employees, Northern Crossarm Company exemplifies what it means to be a leader in the industry.


News & Articles From Northern Crossarm

How to Choose A High-Quality Wood Deck Sealer – Deck Stains, Deck Sealers, Water-Based Vs. Oil-Based

How to Choose A High-Quality Wood Deck Sealer From battling harsh UV rays, battering rain and cold-warm weather temperature extremes, a quality wood deck can turn faded or dull. Fortunately, there’s a solution – a high-quality, water-based deck stain can revive a deck’s appearance while protecting against the elements. Learn how to choose the best […]

How to Choose The Best Brown Treated Decking

How to Choose The Right Brown Treated Decking Are you thinking about building a deck out of real, natural wood? If you love the look of all-natural decking without the hefty price tag of composite, there are new brown treated decking options that are not only increasing in popularity, but also fitting into the aesthetic […]

Northern Crossarm Welcomes Knecht Home Center

FOR IMMEDIATE RELEASE: October 1, 2020 Northern Crossarm Co., Inc. PO Box 34 Chippewa Falls, WI 54729 P: 715-723-4100, E: sales@crossarm.com Media Contact Brett Hansen Office 715-723-4100 sales@crossarm.com   Northern Crossarm Welcomes Knecht Home Center Chippewa Falls, Wisconsin: Northern Crossarm Co., Inc., along with its distributor Boise Cascade, announce that they are now supplying Knecht […]

What is Kiln Dried After Treatment (KDAT) Lumber: The Definitive Guide

What is Kiln Dried After Treatment (KDAT) Lumber? Definition: Kiln Dried After Treatment Lumber (KDAT) is a drying process that occurs after pressure treating wood – once lumber is pressure treated with chemicals, kiln drying removes excess moisture and chemicals left behind to help minimize the natural tendencies of wood to warp, cup and shrink. KDAT […]

The 3 Best Framing Options for TimberTech Decks

The 3 Best Framing Options for TimberTech® Decks Normally, when people think of decks, they often think about what they can see (deck boards, railings, etc.). However, the most important part of a deck is actually what you can’t see – it’s the framing & substructure. Deck substructure provides the frame that holds up those […]

3 Best Framing Options for Trex Composite Decking

3 Best Framing Options for Trex® Composite Decking When people think of decking, they often think about what goes on top of the deck. But rarely do they consider the most vital component – framing and substructure. As in, what goes below the deck. Trex Decking can be installed on one of three options green […]

8 Reasons Deck Builders Don’t Use KDAT (Kiln Dried After Treatment) Wood for Composite Decking Substructure & Framing

8 Real Reasons Deck Builders Don’t Use KDAT (Kiln Dried After Treatment) Wood for Composite Decking Substructure & Framing What if you could minimize the short- and long-term problems associated with wet/green treated decking for less than $200? And no, I’m not talking about stains, sealers or miracle composite products – I’m talking about something […]

Composite Decking Framing – The Best Options

KDAT The Best Framing Option for Composite Decking Composite decking has grown to be a frontrunner in popularity over the years. Brands like Trex, TimberTech, Fiberon, Deckorators have entered the market with product alternatives to real, natural wood. However, while you might be in awe of the performance of composite decking on the surface, there’s […]

KDAT Pressure Treated Wood – The Definitive Guide

Kiln Dried After Treatment (KDAT) wood is pressure treated lumber that’s been dried after the pressure treating process to deliver better resistance against warps, cups, twist and checks…

Want the highest quality pressure-treated wood on the market?

Call (715) 723-4100