板(ban)(ban)材(cai)（sheet material）是(shi)做成(cheng)標(biao)準(zhun)大(da)(da)小的扁平矩形(xing)(xing)建筑(zhu)材(cai)料(liao)板(ban)(ban)，應用(yong)于建筑(zhu)行業(ye)，用(yong)來作墻(qiang)壁、天花(hua)板(ban)(ban)或(huo)地板(ban)(ban)的構(gou)件。也多指鍛(duan)造、軋制或(huo)鑄造而成(cheng)的金屬(shu)板(ban)(ban)。劃分為薄板(ban)(ban)、中(zhong)板(ban)(ban)、厚板(ban)(ban)、特(te)厚板(ban)(ban)、通(tong)常做成(cheng)標(biao)準(zhun)大(da)(da)小的扁平矩形(xing)(xing)建筑(zhu)材(cai)料(liao)板(ban)(ban)。