T1-11 Shed Siding

T1-11 Shed Siding from Northern Crossarm is the rich, prefinished lumber product you’ve been waiting for.

Call 715-723-4100


The Nation’s #1 Brown Treated Wood Supplier

T1-11 Shed Siding

Rich brown shed siding for your next backyard project – without the need to paint or stain! Our T1-11 Shed Siding is the ideal diy addition to the Northern Crossarm brown product lineup. Not only does it look great, but it’s sure to add easier storage shed construction and a richness to your backyard space.

brown t1-11 shed siding Wood Features & Benefits

Find A Dealer

Looking for your nearest KDAT lumber dealer? We have stocking yards throughout the United States.

Brown T1-11 shed siding Wood Photo Gallery

Brown t1-11 shed siding FAQ & Information

Brown Treated Wood FAQ

Common Questions About Brown Treated Wood

Watch this short, 1-minute video about the 6 benefits of brown treated wood.

Northern Crossarm Company products brown treated wood products in all dimensional sizes. They are available in green (natural) wet, finished with a rich brown (wet), or as a KDAT (kiln dried after treatment) finished with brown coloring (dry).

We offer both options of brown treated (wet) and KDAT (brown). The exception is that our posts (4x4s, 6x6s), 5/4 patio decking, T1-11 shed siding, WP4 Tongue & Groove – all of these products are coated with a rich brown finish, but are not Kiln Dried After Treatment.

To find your nearest brown treated wood dealer or retail location, please give us a call at 715-723-4100, or send us an email with your name and zip code to sales@crossarm.com

Brown Treated Wood Resources

FREE 37-Page KDAT Lumber Guide

The Ultimate Guide to KDAT Lumber

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.

Brown Treated Wood Articles

90-Day Stocking Dealer Program

Try our top-selling KDAT for 90 days, risk free – if it doesn’t sell, we’ll pay to ship it back!