Old window or door frame. Great idea for DIY coffee table !!
160+ Best Coffee Tables Ideas
Majestic 160+ Best Ideas Coffee Tables https://decoratio.co/2017/04/160-best-ideas-coffee-tables/ In this Article You will find many Coffee Tables Design Inspiration and Ideas. Hopefully these will give you some good ideas also.
Barn Wood Coffee Table, http://bec4-beyondthepicketfence.blogspot.com/2015/02/barn-wood-coffee-table-and-change.html
DIY Old Doors Turn into Coffee Table
DIY Old Doors Turn into Coffee Table | DIY to Make