Selecting the right size of your Classic Cast Stone Mantel is a simple process. Each mantel in this series has a few dimensions that can change within a range (see the dimension table for each mantel). Surround facing is also made to fit your firebox opening size and location from the floor. This flexibility means that, in most cases, you may choose the exact size that best fits your situation.

NOTE: If you prefer to have us do the work and suggest an appropriate size, click for a measurement form.

Mantel Sizing

Step 1: Mantel Opening Width "C"

This is the area between the legs of the mantel. To determine, start by figuring the actual firebox opening width (see Fig. A) by measuring the opening from side to side (don"t include any metal flange that you want to cover up). Once you have this measurement, decide how much surround facing that you would like to show between the legs of your mantel and the firebox opening width. A good rule of thumb is 6 - 8".

Your Mantel Opening Width "C" = firebox opening width + facing on each side
If you choose to show 6" on each side, this will be 12"

Step 2: Mantel Opening Height "B"

This is the height of the inside of each mantel leg. To determine, start by figuring the actual firebox opening height (see Fig. A) by measuring the opening from top to bottom (include vents if applicable, but not any metal flange that you want to cover up). If your firebox opening is above the floor or desired hearth height, add this measurement to your firebox opening height. Once you have this measurement, decide how much surround facing that would like to show above your firebox opening. A good rule of thumb is 1 to 2 times what your showing on each side of the firebox opening.

Your Mantel Opening Height "B" = firebox opening height + height from floor
If you choose to show 6" on each side, this will be 12"

Each mantel has a dimensional chart that gives you dimensions for other mantel parts and the math to figure what your Opening Width "C" and Opening Height "B" choices will mean for the Overall Mantel Width and Overall Mantel Height. Be sure to check these to insure that you have enough room on your wall, free of obstacles like windows, doors and light switches.

Rest assured that we will not process any order without reviewing and confirming all measurements with you. Click for a measurement form.

Optional Hearths

We can create the perfect hearth for your mantel. Hearths are available in 1" heights and above. In most cases you will want your hearth length, to match the Overall Length "D" of your mantel. Standard hearth depth is 20" (other depths by request).

Optional Overmantels

Overmantels can be created in any height to complement your mantel and ceiling height. Special accommodations can be made in each style for plasma television access or other.

Fig. A Firebox Opening (choose the firebox illustration from below that matches your firebox opening).

Fig. A Firebox Opening

  1. Uncoverable Opening Width (Do not include outer flange of metal firebox)
  2. Uncoverable Opening Height (Do not include outer flange of metal firebox)
  3. Floor to Uncoverable Opening Measured from: Finished Floor OR Subfloor OR Estimated (Pre-Demolition)
  4. Floor to Bottom of Flange Measured from: Finished Floor OR Subfloor OR Estimated (Pre-Demolition)