Almost every solid aluminum board has tri-shaped ribs on top as does ours. The difference being a tool is used as the extrusion exits the mold while it's still hot that indents the tri-rib adding a series of traction grooves all along the board for absolutely superior boot traction. This feature should not be taken lightly when using an all aluminum board when it's wet from rain or first thing in the morning with dew on the ground. Our main I-beams are a full 2 mm thick. The upper I-beam radius is generous. More so than any other board we have seen or tested. This adds major support for the top aluminum layer that you actually walk on. Wind latch is standard on both ends. Latch pivots in a swing pattern and prevents uplift in high wind conditions. Rigidity also is gained from our slotted manufacturing process. We designed a slot into the 2 main I beams. One a male and one side a female so that they mate together perfectly. This mated condition down the entire length of the board is superior to trying to bolt 2 large extrusions together in 3 places along the seam. Our old design was bolted together and was squishy along the seam.