Moving place is very important while buying furniture for any room, be it the office or the home or the living room or the dining room. If there is no moving space within the room, one might start feeling trapped in the room and would need to discard the furniture earlier than would be feasible. It would be a good idea to take the measurements of the room and then decide which furniture would fit well in the room.
Whether you are planning to buy a full tower file cabinet, or if you want a book shelf for your home office, keep in mind that the room should be airy and bright, and should preferably have a window open at all times. Therefore, while you set the furniture into the home office, make sure that it does not conflict with any source of light in the room. The best way to solve this is to take photographs of the room that is to be furnished and then decide which furniture would go where; in such a way that it wouldn't bar the light source.
Matching the Room:
Even if it's the home décor and home office, remember that you are furnishing an office. So, unless you have a few thousand square feet to spare for the office, steer clear of the large, bulky and not to mention expensive furniture for your home office. Also, you could try to match the furniture with the type of work that you do from home, or even try to match the lifestyle that you follow.
These are the three important tips that one should keep in mind while deciding on furniture for the office.