Did you know that San Francisco Department of Building Inspections allows you to repair your deck with a simple, over the counter permit, as long as only  50% of the structure requires repair.

Once your San Francisco Deck requires more than 50% of the structure to be repaired, the City requires you to obtain architectural, structural and possible 3.11 notification to your neighbors.   Dry rot can get into the structural part of deck and spread quickly without you even being aware.