ok heres the update. boards kinda marking out so i could see the pattern
this is the filter spot
1st layer of 6x4's in place and level
2nd layer on top fastened with 3" deck screws and a bunch of 10" spikes
this is the filter spot
1st layer of 6x4's in place and level
2nd layer on top fastened with 3" deck screws and a bunch of 10" spikes