木樓梯

因不能防火，應用(yong)范(fan)圍受到(dao)限制(zhi)。有(you)暗(an)步式(shi)(shi)和明(ming)步式(shi)(shi)兩種。踏步鑲嵌于樓(lou)梯斜梁(liang)(又稱樓(lou)梯幫(bang))凹槽內的為暗(an)步式(shi)(shi);釘于斜梁(liang)三角木(mu)上的為明(ming)步式(shi)(shi)。木(mu)樓(lou)梯表(biao)面用(yong)涂料防腐。