Why opt for oak wood in construction?

For what part of the construction?

Oak is popular for interior trim, doors. flooring and cabinets. It is not the cheapest choice especially if things are going to be painted. For painted applications poplar, pine, MDF or even PVC can be used depending on the specific use.

It is very seldom used for framing or other structural elements because of cost compared to pine, hemlock or fir.

Very durable, but also expensive. Great for exposed timber framed houses.