I'm having trouble following you. Need more pix of the final products possible. Gene

We have tons of bread trays that I turn over to set plants on so that the water drains off. However, they are large so using inside is not feasible. Something small like this project might work.

Gene,
Sorry, I don't have more pics available right this minute.

Basically you're setting the pickets side by side to make the top of the pallet. Select the pieces you want, that look the best. That's what you'll see from the top. All done? Now, turn the pickets over to the other side. Cut the 2x2 pieces into lengths that match the width of your pallet. Lay them on the back side, across the pickets. Nail or screw them in, two or three nails/screws per each picket. Now, flip it back over. The pickets you selected will be on top. The "feet" will be on the bottom, holding the pickets in place, and keeping the pallet off the ground or other surface.

Visualize a section of a picket fence. The smooth side is the top of your pallet. The back side held together with the cross pieces is the bottom of your pallet.

Look closely at the picture I posted. Blow it up. You can see two lines of screws on either side of the middle planter. That's where the 2x2s are on the bottom...

Notice there is no line down the middle of the middle planter. I spaced my "feet" too far apart, and that middle planter eventually fell through. Should've put a 2x2 under that one.

My husbands is screwing some wheels onto mine for easier moving. I think my bottom boards are a little thicker.

Nice touch with the wheels!