Barilla Jar Holder

I couldn't find a model that fit my situation so I created one myself. I wanted to use empty room in our kitchen storage. So I needed a model that can hold jars that are the size of a Barilla Pesto jar. I mounted it to the wall with just nails and I holds perfectly. Its modular so you can hang more of them side by side. For the side pieces there are also models with rounded corners. Normally the pieces would fit perfectly together. Requirement for that: An even wall :D