The answer to 'fence thin grass' is that there are several common causes for thin grass near fences, including lack of sunlight, soil compaction, and competition from shallow tree or shrub roots. Symptoms include sparse, discolored grass that fails to thrive. Solutions can involve aerating the soil, adding topsoil and overseeding, or removing competing vegetation.
For minor issues, homeowners can often address thin grass near fences through DIY methods like core aeration, topdressing with compost, and overseeding. However, if the problem is severe or the result of deeper structural issues, it's best to consult a professional landscaper who can diagnose the root cause and provide the appropriate remediation.