How much morter to lay 100 bricks?

The amount of mortar needed to lay 100 bricks typically varies based on the size of the bricks and the thickness of the mortar joints. On average, you can expect to use about 1 cubic foot of mortar for every 100 bricks. Thus, you would need approximately 0.2 to 0.3 cubic feet of mortar for laying 100 standard-sized bricks, depending on the joint size. It's always best to consult specific guidelines or calculations based on the brick type and project specifics.