10x13 vs 8.5x12 Poly Mailers

Not sure which to pick? Use the Packaging Tools to get a recommendation.

Choose 10x13 when your item fits the 10x13 footprint. Choose 8.5x12 when your item needs more room in the 8.5x12 footprint.

10x13 options

• 10x13" White Tyvek¬Æ Self-Seal Flat Envelopes - Tear & Puncture Resistant, Case of 100
  $45.05In stock
• 10x13" 2.5 Mil White Poly Mailers with Tear Strip - Case of 500
  $48.43In stock
• 10x13" Clear View Poly Mailers, 2.5 Mil Self-Seal, Case of 500
  $69.77In stock
• 10x13 Self-Seal Poly Mailers 2.5 Mil White - 1000 Pack
  $101.37In stock
• 10x13 Tyvek First Class Mailers, 14lb Olefin, Self-Seal, Case of 100
  $50.30In stock
• 10x13 Blue Poly Mailers Self-Seal 2.5 Mil - Case of 100
  $22.09In stock

8.5x12 options

• 12x8.5" Bubble Lined Poly Mailers 3/16" Cushioning - 25 Pack
  $15.04In stock
• 8.5x12" Bubble Lined Poly Mailers - Tear Proof Self Seal, Case of 100
  $30.77In stock
• 12 x 8.5" Kraft Self-Seal Padded Mailers #2 - Puncture Resistant, Case/100
  $50.58In stock
• 12 x 8.5" Kraft Self-Seal Padded Mailers #2 - Puncture Resistant, 25 Pack
  $28.26In stock
• 8.5x12 White Fiber Padded Self-Seal Mailers - Professional Protection, Case of 100
  $53.11In stock
• 8.5x12 Fiber Padded Self-Seal Mailers - White, 25 Pack
  $17.04In stock

When to use

• Deciding between 10x13 and 8.5x12 for a new SKU or packaging refresh.
• Cost, protection, and throughput tradeoffs.

When not to use

• Edge cases where neither option fits — check the related guides.

Frequently asked