Extendable adjustable deck support that can be used with multi-format from 3" x 3" to 6" x 6". Receiver compatible for a 4" x 4" post, 4" x 6" post, double beam, triple beam, 6" x 6" dressed and 6" x 6" rough posts. Reversible so it can be used in a deck block or in a concrete sonotube. Facilitates the levelling of the floor during construction. Allows adjusent to the structure following ground movements (freezing, thawing). Made of steel with a baked powder coating finish that gives excellent rust resistance. Multi-use product, for deck, sheds, patios, etc.. Supports up to 2725 lb