Cannabis Packaging Size Guide: Dram Vials, Mylar Bags & Pre-Roll Capacity

Choosing the correct cannabis packaging size is important for product protection, compliance and shelf presentation. This guide explains how many grams fit inside popular cannabis containers including 6 Dram, 13 Dram, 19 Dram and 30 Dram vials, Mylar bags, pre-roll tubes and child-resistant jars.

bolt Quick Reference

Quick Reference: What Size Container Fits 3.5 Grams?

The industry standard for a 3.5g “eighth” of cannabis flower is the 19 Dram vial. However, flower density varies by strain structure, moisture content and trim style. Dense indica flower may fit tightly inside a 19dr container, while fluffy sativa flower may require a 30 Dram vial to prevent compression and terpene damage.

Child-resistant Dram vials are one of the most commonly used cannabis packaging solutions for dispensaries, pre-roll brands and concentrate companies. The chart below explains how many grams fit inside each Dram vial size and the most common retail applications.

Size (Dram)	Est. Flower Capacity	Standard Application
6 Dram	0.5g - 1.0g	Single dose / Samples / Concentrates
13 Dram	1.0g - 2.0g	Single grams / Pre-roll multipacks
19 Dram	3.5g (Standard)	Retail Benchmark (Eighth)
30 Dram	7.0g (Quarter)	Quarter Ounce / High-volume flower
60 Dram	14.0g (Half)	Half Ounce / Large flower pods
90 Dram	28.0g (Full)	Full Ounce storage

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Capacity Note: Density Matters

Flower density significantly impacts usable capacity. Dense, compact buds may fit more weight into a smaller container, while larger premium flower often requires additional internal space to avoid crushing trichomes and damaging presentation quality.

Pre-Roll Tubes Capacity

Capacity by Tube Size

118mm Tube 1.0g – 1.5g
116mm Tube 1.0g – 1.5g
108mm Tube 0.75g – 1.0g
98mm Tube 0.5g – 0.75g
90mm Tube 0.5g – 0.7g
78mm Tube 0.3g – 0.5g
30mm Tube 0.2g – 0.35g

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Technical Note: Fill Weight

Pre-roll tube capacity depends on cone dimensions, filter length and flower density. A 116mm tube is specifically designed for king size cones measuring approximately 109mm total length. Using a smaller cone inside a larger tube creates additional headroom that helps reduce tip damage during shipping, storage and dispensary handling.

1 Gram Pouch

Capacity: 1.0g - 1.5g

Ideal for single grams and promotional samples. Standard 3" x 4" outer dimensions.

Standard

3.5 Gram Pouch

Capacity: 3.5g - 4.5g

Gusseted for stand-up display. High-barrier foil prevents terpene loss.

7 Gram Pouch

Capacity: 7.0g - 10.0g

Large format "Quarter" bags for high-volume retail flower sales.

14 Gram Pouch

Capacity: 14.0g – 16.0g

Designed for half-ounce cannabis flower packaging and larger retail product formats.

28 Gram Pouch

Capacity: 28.0g – 32.0g

Built for full-ounce cannabis flower storage and bulk dispensary packaging applications.

Expert Tip: For cannabis Mylar bags, usable storage capacity depends on zipper placement, heat-seal clearance and flower density. Always leave at least 0.5" to 0.75" of headroom above the flower to ensure a proper seal without compressing the product.

Premium cannabis jars and containers are designed for flower storage, freshness retention and compliant dispensary packaging. Different jar styles provide varying internal capacities depending on flower density, bud size and packaging application.

Container Type	Est. Flower Capacity	Estimated Flower Capacity
Concentrate Containers	5ml – 9ml	Concentrates / Extract Storage
Push & Turn Bottles	8 Dram – 60 Dram	1g – 14g Flower
Dome Jars	2oz – 8oz	3.5g – 28g Flower
Smooth Cap Jars	4oz	Premium Flower Storage
Curved Cap Jars	4oz	3.5g – 14g Flower
Curved Cap Jars	4oz	3.5g – 14g Flower
Plastic Grip Jars	16oz – 1 Gallon	Bulk Cannabis Storage
PET Wide-Mouth Jars	8oz – 1 Gallon	Bulk Flower Packaging

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Capacity Note: Density Matters

Actual cannabis flower capacity varies depending on bud density, trim quality and moisture content. Larger premium buds may require additional internal space to preserve flower structure, trichomes and overall shelf presentation quality.

Frequently Asked Questions

How many grams fit in a 6 Dram vial? expand_more

A standard 6 Dram vial typically fits between 0.5g and 1g of cannabis flower depending on bud density, moisture content and trim quality. Dense flower may fit more tightly, while fluffy strains often require additional internal space.

What size vial is best for 3.5 grams? expand_more

The industry-standard container for 3.5g cannabis flower is the 19 Dram vial. However, larger premium buds or airy flower strains may fit better inside a 30 Dram container to avoid compression during storage and transport.

Are cannabis Mylar bags smell-proof? expand_more

High-barrier cannabis Mylar bags are designed to significantly reduce odor transfer while helping preserve freshness and terpene quality. Proper heat sealing and zipper closure are important for maximum odor protection.

Are all cannabis containers child-resistant? expand_more

Most dispensary-grade cannabis containers use certified child-resistant mechanisms such as push-and-turn, squeeze-to-open or pinch-style closures designed to meet ASTM child-resistant packaging standards required in regulated cannabis markets.

warning Regulatory Alert

Note: Cannabis packaging regulations vary by state and licensed market requirements. Some regions require universal THC warning symbols, opaque materials, tamper-evident features and certified child-resistant closures to appear directly on the primary packaging container. Always verify local cannabis compliance laws before selecting packaging sizes for dispensary retail products.

Ready to Elevate Your Packaging?

Explore our collection of pharmaceutical-grade, child-resistant cannabis packaging solutions including Dram vials, Mylar bags, pre-roll tubes, jars and compliant dispensary containers designed for freshness retention and premium retail presentation.

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