板(ban)(ban)(ban)(ban)材(cai)（sheet material）是做成標準(zhun)大小的(de)扁(bian)平(ping)矩形建(jian)(jian)筑(zhu)(zhu)材(cai)料板(ban)(ban)(ban)(ban)，應用(yong)于建(jian)(jian)筑(zhu)(zhu)行(xing)業(ye)，用(yong)來作墻壁、天花板(ban)(ban)(ban)(ban)或(huo)地板(ban)(ban)(ban)(ban)的(de)構(gou)件。也(ye)多指(zhi)鍛造(zao)(zao)、軋制或(huo)鑄造(zao)(zao)而成的(de)金(jin)屬板(ban)(ban)(ban)(ban)。劃(hua)分為(wei)薄板(ban)(ban)(ban)(ban)、中板(ban)(ban)(ban)(ban)、厚板(ban)(ban)(ban)(ban)、特(te)厚板(ban)(ban)(ban)(ban)、通常(chang)做成標準(zhun)大小的(de)扁(bian)平(ping)矩形建(jian)(jian)筑(zhu)(zhu)材(cai)料板(ban)(ban)(ban)(ban)。