FIREWOOD SHED: 3 bays of open both front and back for access which helps facilitate wood rotation. Maybe add a smaller bay for kindling. Designed with overhangs all around, to maximize the plywood and metal roof use/layout.
I would have this rack outside in the garden, nect to outdoor kitchen . (Source : TIBAS openhaarden & kachels Decoracion sala comedor Hierro Estanteria Diseño Almacenaje de troncos madera chimenea is creative inspiration for us.