Well, one way to work with latitude and longitude on a local project is to add the same value to all the longitudes so that the local project straddles on the central meridian of a UTM zone. The use any UTM application to convert the latitude and longitude to rectangular plane coordinates.
One...
I'm trying to decide on the best way to section a 25' concrete header wall together. The wall will be 5" thick and 16" tall. I have some flat stainless steel plates in 5" x 16".
Of course the concrete header wall should be as good of a water and termite barrier as a brick and mortar wall.
I've taken out a concrete patio that didn't fully cover the floor joists.
I'm going to pour a concrete header as a water barrier and as a termite barrier. Of course a new patio could poured against the header at a later time.
The concrete header will be about 4" thick and about 16" high and...
