Compression Load FinFROST FOOTINGS FOR LEDGER CONNECTED DECKS AND MORE IN MINUTES. The Deck Foot Anchor for ledger connected decks is a frost footing that installs easily into most soil types with a lightweight handheld impact wrench. A compression Load Fin gives the auger lateral resistance in the soil. Best of all, the Post saddle can adjust laterally for precise alignment with a beam unlike other helical piles. Rated up to 1400 lbs (Clay) and 6285 lbs (Sandy) with a