Hi 1petal
You would need to purchase approximately 9 boxes to cover a room 10' X 14'. I hope this helps.

Unfortunately, this product is not suitable for a bathroom. Sorry for the inconvenience.

You could lightly sand the floor and refinish it; please note that you will have to do the whole floor in the room. I hope this helps.

Yes, this product is quite easy to cut as long as you are using the correct tools. It is recommended to use a table or mitre saw with a finishing blade. I hope this helps.

The best wear surface on this floor is 6 layers of water base urethane. Hope this helps.

Yes you can BUT what you have to be careful about is the moisture level. It is recommended to glue the cork in the joint to help. Hope this helps.

You can if you choose use an underlay on top of vapour barrier if installing in the basement or on concrete; other than that you do not require underlay. Please see below for the care instructions.
Lay dirt-absorbing mats in high traffic areas, (such as entrance halls and hallways). Fit felt tips to the feet of your furniture. For office chairs, use a chair mat to protect the floor. Ideal indoor climate is 19-22 degrees Celsius, 45-55% relative humidity. Extreme fluctuations in the indoor climate may cause a slight deformation in the panels and minor separation in the joints of the floor.
Do no attempt to clean this floor with wax. polish, or scouring materials. Do not use commercial wet jet type mops.
I hope this helps.