Master Boxes for Cannabis Packaging: Sizes and How to Choose
Written by Lia Thompson, packaging specialist at Creative Labz. Last updated October 4, 2026.
Individual jars, bags, and tubes are what customers buy. Master boxes are how those units get stored, shipped, counted, and displayed before they ever reach a customer. The right master box saves time in the back room, protects glass in transit, and gives retailers a clean way to stock and show your product.
This guide explains what master boxes are, which sizes fit which products, and how to choose the right one.
What Is a Master Box?
A master box (or master case) is an outer box that holds a set number of retail units, like sixteen 3.5g jars or twenty-four pre-roll boxes. Instead of handling loose units, you move, count, and store them in fixed quantities. Many master boxes double as display boxes, so a retailer can open one and set it right on the counter.
Master Box Sizes by Product
| Product | Master box | Holds |
|---|---|---|
| 3.5g glass jars | 16x 3.5g jar display master box | 16 jars (56g, about 2 oz) |
| 3.5g glass jars | 32x 3.5g jar display master box | 32 jars (112g, about 4 oz) |
| 28g glass jars | 16x 28g jar display master box | 16 jars |
| 28g glass jars | 32x 28g jar display master box | 32 jars |
| 3.5g Mylar bags | 16x 3.5g Mylar bag display master box | 16 bags |
| 116mm doob tubes | Doob tube display box or vertical display box | 116mm tubes |
| 109mm 3-pack pre-roll boxes | Pre-roll box master case | 24 boxes |
| Vape cartridge boxes | 16-box or 20-box master case | 16 or 20 cart boxes |
Why Use Master Boxes?
- Faster counting and inventory. Fixed quantities make it easy to count stock, fill orders, and spot shortages. A 16-jar box of eighths is 2 ounces every time.
- Protection in transit. Glass jars rattling loose in a shipping box break. A fitted master box keeps them upright and separated.
- Wholesale-ready orders. Retailers and distributors prefer to order in case quantities. Master boxes make your product easier to buy in bulk.
- Counter displays. Display master boxes let a retailer open the box and put your product on the counter without repackaging.
- A professional look. Uniform cases signal an organized, established brand to buyers.
For more on bulk and wholesale packaging, read Wholesale Cannabis Packaging.
16 or 32? How to Choose
- Choose 16-count boxes if you're a smaller brand, sell to boutique shops, carry many strains in smaller runs, or want a compact counter display.
- Choose 32-count boxes if you move higher volume per strain, ship to distributors, or want fewer boxes to handle.
- Mix and match if you sell flagship strains in volume and limited drops in smaller runs.
Tips for Using Master Boxes
- Label the outside with strain, size, quantity, and batch so stock can be found without opening boxes.
- Keep jars sealed before they go in the box. Inliners and shrink bands help.
- Store cases cool and dry to protect both the boxes and the product inside.
- Rotate stock so older batches ship first.
Frequently Asked Questions
How many 3.5g jars fit in a master box?
We offer 16-count and 32-count master boxes for our 3.5g glass jars, holding about 2 ounces or 4 ounces of flower in eighths.
Can master boxes be used as displays?
Yes. Our display master boxes are designed to open and sit on a counter or shelf.
Do you have master boxes for pre-rolls and vapes?
Yes. We carry display boxes for 116mm doob tubes, a master case for 24 pre-roll 3-pack boxes, and master cases for 16 or 20 vape cartridge boxes.
Organize Your Inventory
Creative Labz carries master boxes for 3.5g glass jars, 28g jars, Mylar bags, doob tubes, pre-roll boxes, and vape cartridges.