Finally, a kids room project to share. When it comes to our kids, we're ready to make everything required for the best possible results. New flooring is usually too expensive compare to professional floor restoration with sanding. In this case, it was better to invest in flooring improvement, instead of changing the floorboards (because actually, they were in good condition).
We made perfect fitting and gap-filling with this kids' room, then we did the sanding and sealed the surface with eco-friendly lacquer (to avoid any allergic reactions).
The job didn't require more time to achieve the final results.