板(ban)(ban)(ban)材(cai)(cai)（sheet material）是做(zuo)成(cheng)標(biao)準(zhun)(zhun)大小(xiao)(xiao)的(de)(de)扁(bian)平矩形(xing)(xing)建(jian)筑材(cai)(cai)料(liao)板(ban)(ban)(ban)，應用于建(jian)筑行業(ye)，用來(lai)作(zuo)墻壁(bi)、天(tian)花(hua)板(ban)(ban)(ban)或(huo)地(di)板(ban)(ban)(ban)的(de)(de)構件。也多指鍛造(zao)、軋(ya)制或(huo)鑄造(zao)而成(cheng)的(de)(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)常做(zuo)成(cheng)標(biao)準(zhun)(zhun)大小(xiao)(xiao)的(de)(de)扁(bian)平矩形(xing)(xing)建(jian)筑材(cai)(cai)料(liao)板(ban)(ban)(ban)。