This block allows one to layout most types of steel deck on a project. There are several fields, After modification of the block, you must do a regen, etc to update the fields. By using the attribute extraction wizard, you can actually create a bill of materials for deck on your project. The block calculates how many sheets are in a run and the weight of the bundle based on the psf entered in the SHTWT attribute. There is a lot going on in this block. I highly recommend keping ortho on. and remember to update fields and table with each modification.