Measures roughly 7" x 9" x 8' long. These are the best grade available of used railroad ties. Keep in mind, however, they are used. Not gently used. Used. They have spent many years supporting railroad tracks across the United States. They will have checks, cracks, splits, and chunks missing. You'll be able to see where the railroad spikes were driven into the wood to support the tracks. In other words, they have a lot of character and also a lot more service to give for whatever outdoor project you have in mind. If they have lasted this long, they should last quite a bit longer for you. Enjoy!