板(ban)(ban)(ban)材(cai)（sheet material）是做(zuo)成(cheng)標準大小(xiao)的(de)扁平矩形(xing)建(jian)(jian)筑(zhu)材(cai)料板(ban)(ban)(ban)，應用于建(jian)(jian)筑(zhu)行業，用來作(zuo)墻壁(bi)、天花板(ban)(ban)(ban)或(huo)地板(ban)(ban)(ban)的(de)構(gou)件。也多指鍛(duan)造、軋制或(huo)鑄造而成(cheng)的(de)金屬板(ban)(ban)(ban)。劃分為薄板(ban)(ban)(ban)、中板(ban)(ban)(ban)、厚板(ban)(ban)(ban)、特厚板(ban)(ban)(ban)、通(tong)常(chang)做(zuo)成(cheng)標準大小(xiao)的(de)扁平矩形(xing)建(jian)(jian)筑(zhu)材(cai)料板(ban)(ban)(ban)。