All S1S2E Products are Protected with a 30-Year Limited Warranty*

S1S2E: Reversible, rough-sawn on one side, smooth on others with eased edges.
Warranty protects against rot, insects and mold, see warranty page for details. These trim boards are durable for the exterior, healthy for the interior. Download a 1-sheet on S1S2E here.

ProfilesNom. SizesNet Sizes16'20'
1x23/4” x 1-1/2”
1x3_s1s2e1 x 33/4" x 2-1/2"
1x4_s1s2e1 x 43/4" x 3-1/2"
1x6_s1s2e1 x 63/4" x 5-1/2"
1x8_s1s2e1 x 83/4" x 7-1/4"
1 x 103/4" x 9-1/4"
1x12_s1s2e1 x 123/4" x 11-1/4"
54x3_s1s2e5/4 x 31-1/16" x 2-1/2"
54x4_s1s2e5/4 x 41-1/16" x 3-1/2"
54x6_s1s2e5/4 x 61-1/16" x 5-1/2"
54x8_s1s2e5/4 x 81-1/16" x 7-1/4"
54x10_s1s2e5/4 x 101-1/16" x 9-1/4"
54x12_s1s2e5/4 x 121-1/16" x 11-1/4"
2x2_s1s2e2 x 21-7/16" x 1-1/2"
2x4_s1s2e2 x 41-7/16" x 3-1/2"
2x6_s1s2e2 x 61-7/16" x 5-1/2"
2x8_s1s2e2 x 81-7/16" x 7-1/4"
2x10_s1s2e2 x 101-7/16" x 9-1/4"
2x12_s1s2e2 x 121-7/16" x 11-1/4"

S1S2E Trim Board Project Ideas

Related Idea Books


Installation Simplified*

Prime all Cuts

(Even butt joints & miters, unless using exterior grade glue). Read more about the importance of priming cuts here.

Moisture Content

Do not install trim boards that have a moisture content over 18%. For interior, make sure you properly acclimate WindsorONE before interior installation and do not install when moisture content is over 8%. Read more on moisture content here.


Maintain Clearances: 6" above grade, 2" above roofs, porches (or other hard surfaces), & 1/4" above flashing.

WindsorONE should be stored, installed, handled & maintained correctly for the best performance. For complete installation guidelines & the WindsorONE Protected warranty, click here or call 888.229.7900.