I used paint chips from the hardware store as a border on top of
Classroom organization Nyla's Crafty Teaching
How to Store Bulletin Board Papers
Bulletin Board Hacks to Save Your Sanity - The Applicious Teacher
14 Simple Classroom Whiteboard Tips
+Each pair of assembly-free racks holds 10 rolls of any fadeless paper. Designed for standard 4x12' and/or 4x50' (white roll in 2nd picture) rolls.
Space-Saving Paper Roll Storage for Fadeless / Bulletin Board Paper. 10 rows.
Classroom Storage Nyla's Crafty Teaching
Organization– Posters and Other Big Things
Poster Board Rack Pacon Creative Products, 43% OFF
Pacon Poster and Roll Classroom Keeper is made of sturdy corrugate. It has 16 individual storage spots for accommodating rolls of charts, paper and more. It allows variety of cell configurations to fit your storage needs. Designed to help organize and store rolls, posters, and other large materials.
Classroom Keepers Poster & Roll Storage, Blue
Poster Board Rack Pacon Creative Products, 43% OFF
10 Easy Classroom Bulletin Board Tips - A Perfect Blend
Beating The Bulletin Board Blues - Around the Kampfire
Tension Rod Ideas for Classrooms