A surgical staple driver array for operable use in a surgical staple cartridge. A plurality of first staple drivers is configured to be slidably supported in the surgical staple cartridge. Each first staple driver is configured to operably support at least two first surgical staples thereon that are parallel to each other. A plurality of second staple drivers is configured to be slidably supported in the surgical staple cartridge adjacent to at least one corresponding first staple driver. Each second staple driver supports a single, second surgical staple thereon. The second surgical staple extends in a second direction that is transverse to each of the first surgical staples supported on the at least one adjacent corresponding first staple driver.