If you shop Home Depot or Lowe's, then you’re a part of this story because you contributed to their revenues. This week both companies released their first quarter results and new projections for 2015.

Home Depot's revised projection is for as much as $87.2 billion in sales revenue this year and Lowe's for as much as $59.0 billion.

If like me, you find it hard to get your head around numbers like these then think of it this way: If all of those purchases were made with $20 bills, and you piled those bills in tight stacks, Depot's stack would be 296 miles high and Lowe's 200 miles high. The chart below will put the numbers into perspective.

projected 2015 revenue for Home Depot and Lowes

(For those of you who want to check my math, the US Treasury says bills are .0043 inches thick)