Walmart offers the Plano 4-Shelf Storage Unit in Light Taupe, model no. 907, for $19.97. Opt for in-store pickup to avoid the $4.97 shipping free. That's the lowest price we could find by $13, although we saw it for $6 less in August. This plastic shelving system features snap-lock assembly and measures 12-1/2" x 32-1/4" x 48-1/4".