Price Grid [index/lookup/match]

Hi. Thank you for your quick response....I really appreciate it.

Please find attached (in its very early form) the sheet i require.

Essentially i want to be able to input a style code in cells c6:c25 of the 'check sheet' page, then a width and height figure and for a price to appear. The rest of the sheet I think i can manage. The cells in orange are just to show the inputer that these are the only cells to be typed in.
The grids on the 'price list' and 'basic price' will eventally be bigger as I have around 50 styles. Ive shown style 1 and 2 but i would like to be able to just input the data on the 'basic price' page and for the figures to appear marked up on the 'price list' page. This will help in the future if i have to implement a price increase. Essentially then the price that appears on the 'check sheet' will come from the 'price list' page.

My apologies for my rather basic 'wording' of what i require. Any help you can give me is truly appreciated.