Aiming　at　the　future　applications　of　a　lattice　structure　manufactured　by　selective　laser　sintering　for　bone　scaffold　in　the　biomedical　field,　by　putting　highlight　on　the　possible　imperfections　influenced　by　different　manufacturing　strategies,　a　numerical　prediction　method　was　studied　and　compared　with　compressive　test　results.　To　consider　the　geometrical　imperfections　as　well　as　the　uncertainty　in　sintered　material　property,　the　first-order　perturbation　based　stochastic　homogenization　(FPSH)　method　was　employed.　To　be　able　to　compare　products　made　by　three　different　printing　service　companies,　maraging　steel　was　used　in　this　study,　which　was　commonly　available.　Several　geometrical　imperfections　were　categorized　into　kink,　notch　and　hole,　and　representative　dimensions　were　parameterized　and　measured　statistically　using　micro-CT　images.　They　were　also　correlated　to　the　building　direction　and　support　types.　The　numerical　prediction　revealed　the　reduction　of　stiffness　in　a　stochastic　way　qualitatively.　The　constructed　database　of　the　geometrical　imperfections　and　the　FPSH　method　will　be　useful　in　the　next　occasion　of　manufacturing　unexperienced　product.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.