A single cinder block fills the space of one pallet. It measures about 15.7 in (40 cm) long and 7.87 in (20 cm) tall, which is roughly 40 cm long and 20 cm tall.

To fill a pallet
about 1 cinder blocks
20 liters of space
about 40 cm long and 20 cm tall
Size and weight estimated by AI from typical values. Sizes and weights are typical for an adult or standard cinder block; real ones vary.