Vinyl size required for Shape Vinyl.

How to add vinyl size to Shape vinyl, for example Cliff Richard - Some People?
now that the vinyl size is requred, how do I get the diameter from Shape vinyl?

Use the playable surface as the record size.

Profoundemonium
Use the playable surface as the record size.

+1. This one is a 7" shaped picture disc.

http://www.ebay.co.uk/itm/Cliff-Richard-Some-People-Ltd-7-Shaped-Picture-Disc-/190798082588?pt=UK_Records&hash=item2c6c73b21c
http://eil.com/shop/moreinfo.asp?catalogid=32391
http://shop.totallyvinyl.com/record/5423-cliff-richard-emi-7-inch-picture-disc-shape-vinyl