The amount of glass for each fireplace varies depending on size and fill depth. Full size fireplaces within the home have a 36" long in the front x 24" wide in the rear and 16" deep (from front to back) x 4" fill level and take about 64 pounds of glass. We find that average size fireplaces (30"x 16 deep x 4") take 64 pounds. Any excess glass ordered can be returned for full refund and credit anytime within 30 days. For a more precise calculation see 'specifications'.

For fireplaces:

E.G. 30" x 16" x 4" = 1920, 1920 divided by 30 =64 lbs

The 30 is derived by the average from the front and the back. (36"(front) + 24"(back)= 60", 60/2 = 30"

There are 30 cubic inches of glass per pound

For fire pits with a raised peak:

E.G. 30" round 15" high

15" x 15" x 3.14 = 706.5, 706.5 x 15" tall = 10597.5 divided by 90 = 117.75 lbs

Radius x radius x ð (3.14) =______ x height =_______ divided by 90 = pounds needed

1/2 of this should be filled with either lava rock or pea gravel to minimize on the cost.

For use in a fire pit with out a raised peak use the formula:

E.G. 30" round

30" x 30" x 2" =  1800 divided by 30 = 60 x .8 = 48 pounds needed.

Diameter x diameter x height divided by 30 =  ____ x .8 pounds needed.

There are 30 cubic inches of glass per pound

Using our ½ product sale can save you 50% on you glass purchase for your fireplace or fire pit.

By using the ½ product sale you will need to fill the base with pea gravel or crushed lava rock to fill the bottom and thus you just saved 50% on your glass.

The only disadvantage on this type of installation is that you cannot disturb the glass and sub-straight you had used or you may have a contaminated surface appearance (a big mess).