How to decorate the wall hook with 300 clubs? The spacing between vertical bars and horizontal bars is 150. Do you want to hang a hook at the 50% junction?

One direction is calculated at 300 spacing, and the other direction is calculated at 150 spacing. The number obtained by multiplying is the hook number.

It should be noted that the direction calculated according to the spacing of 300 depends on whether the number of steel bars is odd or even, with even being /2 and odd being /2+ 1.