ROTBLOC 4X4 POST WRAPS are pre-molded and easy to install in 10 seconds or less on your job site.  Designed to prevent groundline rot on your treated 4x4 posts which are commonly used for fences and support posts. 

GROUNDLINE ROT IS THE LEADING CAUSE OF CHEMICALLY TREATED PREMATURE WOOD POST FAILURES. ROT IS CAUSED PRIMARILY FROM MICROORGANISMS WITHIN TOP SOIL WHICH FEED AND BREAK DOWN WOOD FIBERS STARTING FROM THE GROUNDLINE DOWN. ROTBLOC LLC INVENTS, ENGINEERS AND MANUFACTURES ZERO-WASTE BARRIER WRAP PRODUCTS FROM 100% RECYCLED MATERIALS, SOURCED FROM THE PACIFIC NORTHWEST.