Priming the pieces

Decided to prime the pieces while they were still intact. Years ago (when I paper scrapbooked) my husband put together this work surface. It is a hollow door over a thrift store piece of bunk bed. One twin mattress fits inside the wooden bed frame with a second twin mattress on a rollout, pop up frame. My grandsons use the beds when they visit, but now that they are getting older and bigger they find them not as comfortable.