For custom lids engraving you will need to email us what your wanting to Andy@creekbanktanks.com. If you are buying a new tank and want this please contact us first before buying it so can get you price. If you have tank already want a lid made. There is a possibility that new lid could be not exact thickness as every sheet of material we get come little different so could be little thinner or thicker. You will have to drill new hinge holes. As we have adjusted those over time no way to know which spacing you would have. Base prices are based off size of tank lid and 1 hr of engraving so if what you want on there take longer then 1 hr prices will increase these are min prices. 20 gal $125 30 gal $135 50 gal $150