Standard Fireplace Size

Fireplace design details do not stop on the front face of the fireplace.

Standard fireplace size.

48 72 96 120. This will tell you which of the most common sizes you are looking at buying. Figure 1 shows details and table 1 provides the widths and heights of fireplace. The majority of mantels we sell are from 66 78 but we make every mantel custom to your unique space.

Fireplaces can range from a small two feet by two feet and smaller up to massive creations that take up an entire room s walls with chimneys spanning two stories. A safe route is to make it 12 longer than the fireplace box. For instance if your fireplace box is 42 then you would order a 56 long mantel. The firebox must be shaped and sized perfectly so it doesn t smoke revised september 2018.

Back wall of fireplace must be straight up for first 12 inches. The size of fireplace insert you require is related to the size of your existing masonry chimney. Standard hearth pad dimensions apply to fireplaces with openings less than 6 square feet. Also ensure the hearth pad stretches at least 8 inches past the right and left edges of the fireplace.

The fireplace opening is a very important element in fireplace design. The mantel should not be so wide that it reaches anything else like a wall window or door. Standard hearth pad dimensions vary based on the width of the fireplace. Fireplace design details checklist.

The shape and size of your fireplace depends on three main factors. The configuration and dimensions of most other components of the fireplace and chimney are based primarily on the dimensions of the fireplace opening selected. When building standard models make sure hearth pads extend at least 16 inches beyond the fireplace s front edge. Sides of firebox must pinch in towards back.

While larger fireplaces complete with mantel and hearth built in seating and wood storage boxes can be as large as 15 feet tall 15 feet wide and 4 feet deep. A 42 inch fireplace will probably have a mantel width of 54 inches. The fuel type the mounting option and the location where you want it. The capacity of a chimney to remove smoke and or energy btu s from an appliance is directly related to the cross section area.

For a quick calculation on size make sure that the mantel shelf width divided by 2 is less than the width from the fireplace center to any wall window door or shelf.