Good Evening,
I noticed the measured dimension of a row of parking varies from that of the parking layout tool dimension. For example, I laid out a row 15 spaces at 9' x 18' for a total of 135'. When I measured the row of parking end to end with a sketch line it measured 140'. I double checked using the ID tool and it validated my 15 - 9' x18' parking spaces at 135'. I'm pretty sure grading goes off the parking layout tool but I just wanted some clarification if this has been encountered in the past and if it's something that we need to take into consideration. My apologies if this is a known issue, I tried searching the forum and Google with no luck.
Regards