[Lowe's] Leveler Aluminum 18-ft Reach Type 1A - 300 lbs. Capacity Telescoping Multi-Position Ladder $129.99 Pound for pound our Endura-Stone™ Columns are stronger than concrete columns, steel columns, stone columns, wood columns, or aluminum columns. With the look and feel of natural stone, Endura-Stone™ column s are the most popular column for both interior columns and exterior columns. Jerith's HS-35 aluminum alloy has a minimum yield strength of 35,000 pounds per square inch (psi). Significantly higher than the 16,000 psi of standard aluminum fencing or the 25,000-33,000 psi strength generally found in steel fences, HS-35 aluminum alloy fence is powder coated for increased durability and rust resistance. Aluminum is a soft, lightweight, corrosion-resistant alloy that conducts both heat and electricity. This material is solution heat treated and then artificially aged. You can use it for applications such as framework, braces, support trailers and truck beds. Aluminum angle stock is relatively easy to weld, cut and machine.