I am making a full sheet cake on Wednesday and I sure could use some advice. I have two separate 12 x 18 pans that I’m going to bake and then put together to fit on a 15 x 24 cake board. I am worried about how to put the two cakes together so that they stay flush so I can decorate the top. I didn’t want to cut the two ends off and put them together with frosting because I didn’t want to lose the length because the two baked cakes will fit nicely on the 24” part of the cake board. Will it be ok to just butt the two ends together, as is, with maybe some frosting to glue them together? I will also need to trim 1.5” off each side to fit the 15” side of the cake board. Then I have some ends cut and others not, but I didn’t want to lose more cake. Maybe it’s not a huge deal to have some edges cut and some not? It is for my granddaughters 3rd birthday but we do have a crowd with people waiting to see what I do with this Paw Patrol cake. lol I could use someone’s opinion on what to do with this? I am a novice for sure. Also, should I be frosting the top or bottom of the cake? I’m making a road out of the number 3.