T1-11 Siding Installation Instructions Jun 2026

Do not overdrive nails, as puncturing the outer ply ruins the water seal. ↔️ Step 5: Joining Subsequent Panels Vertical Edge Joints

[Stud] || [Panel 1]<- 1/8" Gap ->[Panel 2] (Underlap) (Overlap) Use code with caution. Horizontal Stacking Joints Structures taller than 8 feet require vertical stacking. Never overlap T1-11 panels horizontally without flashing. Install wood blocking between studs at the joint line. t1-11 siding installation instructions

Installing T1-11 is a weekend-friendly project for a shed or gable wall. For a full two-story house, you might want to call a pro (lifting 4x9 sheets is heavy and awkward). Do not overdrive nails, as puncturing the outer

Even if it says "primed," it needs paint. Never overlap T1-11 panels horizontally without flashing

Check that the panel is perfectly plumb using a 4-foot level. Fastening Schedule Drive 8d galvanized ring-shank nails along the panel edges. Space edge nails 6 inches apart on-center.