[ Non-metal building materials and non-metal building tools, namely, scaffolding, non-metal interior and exterior shutters, formwork in the nature of scaffolding; scaffold towers; platform scaffolding for use with staging; ladders; access and working platforms; handrails for walkways; spandecks in the nature of formwork panels; trench sheeting panels; trenching struts; fences; barrier apparatus in the nature of posts and guard rails; panels and forms for pouring concrete; hoarding panels; roo...