ICF block details

The blocks are about 7 foot long, 15 inches tall, 10 inches wide.

Heavier than you'd expect-- you see the foam, but the particles are held together by cement.

I believe these are called "screen grid" blocks, in that the channels form a horizontal-vertical grid for concrete (as opposed to flat "ice cream sandwich" or almost-flat "waffle" type panels with an open void in between our and inner sides of the blocks.

The cylindrical channels running through and across the blocks are about 4 inches in diameter.

Due to the 15 inch height, this also means that the center-to-center spacing of the channels is 15".