For a 11 x 15, it takes approx 2 boxes of cake mix....And for the 12 x 18 approx 3 boxes of cake mix....
Happy Baking!!!!!!!!
For a 11 x 15, it takes approx 2 boxes of cake mix....And for the 12 x 18 approx 3 boxes of cake mix....
This is what I use for 1 layer sheet cakes......
Happy Baking!!!!!!!!
two layer cake
Sheet servings
7 x 11" 28
9 x 13" 45
11 x 15" 60
12 x 18" 72 note I have this pan you, it has two lines one for single layer and one for two layers but it is a deep pan, it take 4 boxes of cake mix to get the double layer.
14 x 22" 98
to see how much batter click the link below
http://www.wilton.com/cake/cakeprep/baking/times/party_2inch.cfm
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1/2 sheet to be 12 x 18 and you can get 40 - 48 pieces.
Full sheet pan Standard 24x16x2
3/4 sheet pan- 18X12X2
Half sheet pan Standard 16x12x2
Quarter sheet pan Standard 13x9
Quarter Sheets, Half Sheets, and Full Sheets Explained
The retail baking industry developed standard sizes for rectangular sheet cakes, beginning with their standard sheet pan size of 16 by 24 and dividing it into halves (half-sheet) or quarters (quarter-sheet). The manufacturers who supply paper and plastic items to the baking industry use these standard sizes to create a variety of cake boards, boxes, and domes.
In an effort to develop a unique market share, some manufacturers began promoting pans of slightly different sizes, selling mainly to home bakers through hobby and specialty stores. Since home bakers do not have the volume purchasing power of retail bakers, most of the paper and plastics manufacturers have not created boards or boxes to accommodate these sizes.
The bottom line: Boards and containers for sheet cakes will always be easier to find if you use the retail baking industry's standard size pans. You will save yourself a lot of frustration by sticking with the standards.
Baking and Paper Industry Standards; The sizes below are recognized as industry standards.
Quarter Sheet Cakes: 8 x 12 pan, 10 x 14 cardboard
Half Sheet Cakes: 12 x 16 pan, 13.5 to 14 x 18.5 cardboard
Full Sheet Cakes: 16 x 24 pan, 19 x 27 cardboard
Non-standard Sizes. These sizes are not standard sizes. Suitable boards and containers can be very difficult to find.
9 x 13 pan: We call it the large quarter size. Very few of the paper suppliers carry the boards (11 x 15) and boxes (12 x 16) for cakes made in 9 x 13 pans.
10 x 15 pan: Use the standard half sheet boards and boxes
11 x 15 pan: Use the standard half sheet boards and boxes
12 x 18 pan: We call it the large half size. This size pan will not fit in most home ovens. Wilton sells a set of 14 x 20 boards that can be used with this pan, but they sell no boxes. If you cannot locate a large half board (14 x 20) and box (14.5 x 20.5), you will have to use full sheet boards and boxes.
I count my sheet cake by the amount of cake I use...not by the size of the pan. If I bake in the 11x15 pan I use 2 cake recipes and it makes a nice tall cake. If I bake in the 12x18 pan...I still use 2 cake recipes...the cake is just not as tall. This way you get the same number of servings and they are both half sheets. The taller cake would be cut in smaller pieces than the flater one, but each piece would have the same amount of cake in it. If you cut it 4x8 you get 32 nice size pieces of cake. I personally like using the 11x15 pan.
I refuse to use the term "half" or "full" sheet cake and here's why:
http://forum.cakecentral.com/modules.php?name=Forums&file=viewtopic&p=3245473#3245473
Here is a thread where I've "done the math" to determine servings:
http://forum.cakecentral.com/cake-decorating-ftopict-302303-feeding.html+80
11x15: 2 mixes
12x18: 3 mixes
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