Tree House Wall Sheathing—For sheathing we used 1/2-in. T1-11 siding and oriented the lines horizontal to simulate a rustic clapboard or horizontal board look. Learn more and get the best DIY treehouse tips and outdoor projects and tree fort tips at extremehowto.com

Tree House Wall Sheathing—For sheathing we used 1/2-in. T1-11 siding and oriented the lines horizontal to simulate a rustic clapboard or horizontal board look. Learn more and get the best DIY treehouse tips and outdoor projects and tree fort tips at extremehowto.com