I recently purchased a small two story house from 1900. The upstairs portion has what appears to be the original wide plank pine floors with that orangey stain. There are a few concerns we have....
1) There are large gaps between boards and you can sometimes see light shining through from the kitchen below. The kitchen ceiling is exposed bottom of the pine floors painted white - deterioration of wood between these boards is present. This is concerning to us since we are worried the boards might break through due to lack of support and old wood (see image 5292 attached). Thoughts?
2) Some boards upstairs feel soft and thin when you walk on them. Especially ones with large gaps between them that allow light from the kitchen to shine up through them. Is this a structural or safety concern? What are some ideas to fix this if it needs to be?
3) We are worried there are several indications of termite damage. In addition, to the many large gaps, grooves, holes and soft/squeaky boards, there are large deep grooves in several boards (see picture below). What are these grooves? Termite damage or just old wear and tear? They are deep but don't go all the way through the board. (see image 5290 and 5291 below)
4) Lastly, we can't figure out why there is a circle patch job in the hardwood floor. Any thoughts?