Join Date: Sep 2019
Location: Dublin, Ireland
You can easily do that jop in one night. It looks around 200-250 sq meter. It all depends on what type of sealer was used and how hard it is to be removed. The floor does not look too bad. The black marks from the chair legs can be easily removed with high PH cleaner & a green pad.
If that was me, i would assess the job. If the floor is in decent condition, no stripping is required. Deep clean with a good buffer 200 RPM. Allow 1 hour to dry, then a quick buff with a blue pad and a 400 RPM buffer. Then 2 coats of polish in the top and the job is done.
You can use the existing finish as a primer and just re-coat.
If the sealer is patchy and in bad shape, it will require stripping. You are not gonna do a job that size on your own? You will need 2 lads to remove the furniture & then 2 gangs to start stripping, deep cleaning & neutralising. If you move well, by 2 am you are ready for priming. I use huge air blowers so i can dry a coat of sealer in 10 minutes.
It can be done but you need to know what you are doing & from the fact that you don`t know how to decide the size of the room, i would say you are not well established yet.
*** you can create some mad damage by not knowing the process so you should contract the job & then find a contractor to do it***