Hi, I'm currently making a website for a custom wallpaper mural company and they're trying to launch by tomorrow, so I need some help.

I'm using ZenCart version 1.3.9h. I just installed it using the GoDaddy Hosting Center.


So, anyways, I need to create a custom dimensions box for each of my products that allows customers to enter the length and the height of the wall they're trying to decorate and then the price will be affected based on the dimensions entered.


here's an image of what i need to make:





if this is possible please let me know how this can be done