This is the cake I have just finished making. It was certainly alot of work, and I under-estimated the time it would take by a couple of days(30 hrs in total).....thankfully I start a couple of days early to allow for error!
It is a BIG victoria sponge to cater for 150, measuring about 16" long, 10" wide, 10" high.
I had my trusty ruler from beginning to end, as everything needed to be measured to fit. I rolled out alot of icing to dry before putting it on the cake like the walls and front. The box shape on top is completely hollow as by the time I got round to it, the cake was quite heavy so didn't want to add to the weight.
It was a big relief to get it finished and out the kitchen. It was received really well, so was worth all the stress...