If you have a space in mind for your 'Bottle Block' Wine rack, here's a calculator to work out how many 'Blocks' you require - Easy!
1-40 blocks/1-16 edges - no discount
41-100 blocks/17-40 edges - 2.5% discount
101-200 blocks/41-80 edges - 6% discount
201-500 blocks/81-200 edges - 12% discount
501+ blocks/201+ edges - 15% discount