Our cradled panels are made with 1/4 inch maple plywood, glued to a 3/4 inch thick pine support for added durability and stability. We offer two depths: Gallery - has a depth of 1.5 inches overall, and is designed to fit our gallery sized floater frames. Standard - has a depth of 1 inch overall, and is designed to fit our standard sized floater frames. Also please note - if you don't see the size you're looking for, we can certainly make it! Just send us a message! If you're ordering a matching frame, for your cradled panel, the sizes match! For example: A 12"x12" Standard Cradled panel is designed to fit our 12"x12" Standard Maple Floater Frames or Standard Oak Floater Frames. A 12"x12" Gallery Cradled panel is designed to fit our 12"x12" Gallery Maple Floater Frames or Gallery Oak Floater Frames, etc.. Note: Since all our products are made to order, we require 3-4 weeks lead time to prep your order. Important note about shipping: Offering a $25 Flat-rate shipping fee on all orders with a package size under 30"x30" and 20lbs. If your order exceeds this size we will contact you with additional shipping information and fees.