Ship small, fragile items with confidence using these ECT-32-B kraft corrugated mailers. One-piece design folds in seconds with no tape or glue required‚double-wall construction on front and sides provides crush resistance. Bundle of 50 ships and stores flat to maximize warehouse efficiency.

In stock SKU M553K

5x5x3 Kraft Corrugated Mailers ECT-32 Crush Resistant - 50 Pack

Name: 5x5x3 Kraft Corrugated Mailers ECT-32 Crush Resistant - 50 Pack
Brand: Packrift
SKU: M553K
Price: 45.83 USD
Availability: InStock

$45.83/ BUNDLE

$0.91 per unit

Sold in BUNDLE of 50

Specifications

SKU	M553K
Dimensions	5" × 5" × 3"
Material / strength	ECT-32-B Corrugated
Sold as	BUNDLE of 50
Brand	Packrift
Freight class	125
GTIN	848109008523

Shipping & returns

Packrift ships from five US warehouses (Central IL, Northeast PA, South TX, Southeast GA, West CA). The nearest warehouse with stock ships your order. Final shipping cost is shown at checkout based on weight, dimensions, and ZIP.

Oversized or high-volume orders may route via LTL freight; the freight quote is calculated live at checkout.

Shipping policy · Refund policy · Support

Best For

Good fit for shipments or presentation packs where the product fits the listed inside dimensions and closure style. Confirm inside dimensions, board type, closure, color, and whether the item needs extra cushioning.

How to choose

The buying decision should be based on the exact inside dimensions, board type, closure, color, and case quantity, not the category name alone. Use the current product page as the source of truth for SKU, variant, price, availability, sold-as unit, and checkout delivery.

Specs at a Glance

Material	ECT-32-B Kraft Corrugated
Dimensions	5" L 5" W 3" H
Design Type	One-Piece Fold-and-Tuck Mailer
Unit Quantity	Bundle of 50
Recyclable	Yes

Common Use Cases

Packing small ecommerce orders, kits, samples, gifts, documents, or parts in a folding mailer box.
Standardizing a branded or unbranded mailer-box size for repeat shipments.
Reordering by exact product link, SKU, or sold-as quantity.
Adding the item to a mixed-SKU or recurring supply request when quantity, delivery ZIP code, or timing matters.

What You'll Receive

This listing is sold as Bundle of 50. Check the current product page for variant details, price, availability, and pack count before checkout.

Shipping & Packaging

Delivery options and timing are shown at checkout based on item and destination. For larger quantities, freight-sensitive items, mixed-SKU needs, or recurring supply, send the product link or SKU, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.

Frequently Asked Questions

ECT (Edge Crush Test) 32-lb rating indicates the corrugated can withstand 32 pounds of force per lineal inch before crushing. This mid-tier strength is ideal for small parcels with moderate fragility; it balances protection with cost efficiency for high-volume shipping operations.

No. The one-piece fold-and-tuck design requires zero tape, glue, or staples. Simply fold the flaps together, the structure self-locks. This eliminates supply costs and reduces packing time by approximately 40% versus traditional boxes.

ECT-32-B corrugated supports approximately 8-12 lbs per mailer when stacked 4-5 units high in a warehouse setting. For heavier items or higher stacks, upgrade to ECT-44-B or ECT-48-B variants. Consult our freight engineering team for custom load calculations.

Kraft ECT-32-B mailers weigh 60-70% less than ECT-48-B equivalents, reducing USPS and UPS dimensional/actual weight charges. For 1,000-unit monthly volumes, typical savings range $200 - $400 depending on shipping zone and carrier selection.

Technical Specifications

Design Type	One-Piece Fold-and-Tuck Mailer
Unit Quantity	Bundle of 50
Recyclable	Yes
Color	Kraft
Strength / Material	ECT-32-B Corrugated
Dimensions (Internal)	5" × 5" × 3" (L × W × H)

Shipping Information

Outer Carton Dimensions

5" × 5" × 3" (L × W × H)

Unit of Measure

BUNDLE

Qty Per Shipping Unit

50 PER BUNDLE

LTL Freight Class

Class 125

Delivery Method

Shown at checkout

Processing and delivery timelines vary by product, warehouse, order size, and destination. Freight-sensitive or oversized items may require LTL delivery or a custom quote before shipment.

Checkout shows available shipping options for the selected SKU and quantity. Use the shipping and refund policy links for current policy details before ordering.

For larger, recurring, freight-sensitive, or mixed-SKU orders, send the SKU or product link, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.

ORDER SUPPORT

Product Support

Specs, case quantities, and availability are listed on each product page. For bulk, mixed-SKU, or LTL freight orders, email support@packrift.com with the SKU, quantity, and delivery ZIP.

Use product support for fit, larger or recurring order, return, or order-issue questions. When price and Add to Cart are shown, checkout remains the direct ordering path.

Need a sample, fit check, or substitution review? Contact product support with the SKU, selected option, order quantity, and use case. Support will confirm the available path for that item.

Contact product support

Secure checkout LTL freight available on case/skid orders

Buyer guides

Buying notes and spec resources stay here instead of taking space above the cart.

View all guides →

Use this product as the source 5x5x3 Kraft Corrugated Mailers ECT-32 Crush Resistant - 50 Pack

Compare resources using the current product page data: SKU M553K , type Boxes - Mailers , sold-as unit BUNDLE / pack count 50 PER BUNDLE . Confirm the product page price, availability, and selected variant before ordering.

Compare usable size, padding, material, closure, and case quantity.

Product support Compare mailer vs box

Use this guide when item thickness or edge protection affects fit.