Deck supports adjustable screw jacks polypropelene. These are used for free standing decks, where conduit or lines need to be run underneath, or can be used to support large tile, for an elevated floor. Lowest height is 3.25” Highest is 5” Locking ring keeps adjustment from changing. Added accessory for lumber, creates an edge, where a screw or nail can be used to mechanically fasten for stabilizing deck. Supports can be permanently fastened to floor if needed.
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