プレミアムシダーボード 16インチ×5.5インチ（厚さ3/4インチ）RCB16P

I was a little worried about the wood quality for the price, but this cedar board is actually heavier and more solid than cedar I've used from the big box stores. It slid perfectly into the corner posts without any gaps.

The 3/4 inch thickness feels way sturdier than the flimsier boards I've used before, and it slid right into the existing posts without any wobble. Cedar smells amazing too, even after a few weeks outside in the rain.

I needed just a bit more length on one side of my bed and this 16 inch board slotted right in without any cutting. The 3/4 inch thickness feels solid, and since it's untreated cedar I'm not worried about anything leaching into my herbs.