A 36 or 42 fireplace opening width is more common but you need to assume about 18 on each side for a typical non combustible surround and wood mantel 24 on each side for something more grand.
Right size fireplace for room.
Use a material that matches the existing fireplace.
A very important factor when deciding what fireplace to buy is the size of your room.
Match the room decor and install safely.
Measure the mantel to extend 3 inches longer than the firebox.
If you select a tiny fireplace it may not be feasible for you to expect it to heat up a room that is several hundred square feet large.
Size a fireplace mantel to a room based on the materials in the mantel design the measurements of the fireplace and the room s decor choices.
This article will give you an advise on how to measure your room and where to find a help.
Electric stoves gas fires or wood burning fireplace will fit your room easily if you know the size of your room.
The size of the room is an important criterion regarding this major purchase.