Airliner368 Wood Wall Art by exclusiveaviationpix. Square now means trendy and stylish. (We’ve updated Wikipedia and have word out to Merriam Webster... they’re getting back to us.) With our wood wall art’s multi-square design, you have the power to adjust the spacing between each section to form exactly the right look. Available in three sizes. Each square is 1/2" thick Baltic Birch wood. 3’ x 3’ comes with nine 12" wood squares. 4’ x 4’ comes with nine 16" wood squares. 5’ x 5’ comes with nine 20" wood squares. Keyhole on back for easy hanging (hanging hardware not included). Hanging template included. Every order is custom made just for you.