A quick way to calculate the amount of shard you need is to first determine the amount of bricks you need for your project. Once you know the brick number, the following formulas will get you the info you need.

Shard:

$Bricks * .825 = Shard$

Large Crates:

$Crates = Shard / 300$

Small Crates:

$Crates = Shard / 150$