Ablank" >target="_blank" >glossary/structure/" class="glossaryLink" data-cmtooltip="e158061ce4e40cf3d005dfebcdd6d8fa" blank" >target="_blank" >structure of wood, metal, orrope, usually consisting of two sidepieces joined at suitable intervals by bars or rungs, forming a means of climbing up or down at anangle of pitch between 75 and 90 blank" >target="_blank" >degrees. (Ching, 1995)