板(ban)(ban)材(cai)（sheet material）是做(zuo)成(cheng)標準(zhun)大小(xiao)的扁(bian)平矩(ju)形建(jian)筑材(cai)料(liao)板(ban)(ban)，應(ying)用(yong)于建(jian)筑行業，用(yong)來作墻壁(bi)、天花板(ban)(ban)或(huo)(huo)地板(ban)(ban)的構件。也多指(zhi)鍛造、軋制(zhi)或(huo)(huo)鑄造而成(cheng)的金屬(shu)板(ban)(ban)。劃分為薄板(ban)(ban)、中板(ban)(ban)、厚(hou)板(ban)(ban)、特厚(hou)板(ban)(ban)、通常做(zuo)成(cheng)標準(zhun)大小(xiao)的扁(bian)平矩(ju)形建(jian)筑材(cai)料(liao)板(ban)(ban)。