40x60x3.5 Mirror Boxes ECT-32 Kraft Corrugated - 4-Piece Bundle
$13.87
/ bundle of 4$3.47 per box
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
40" × 60" × 3.5"
Board / material
ECT-32 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 40" × 60" × 3.5" (L × W × H) |
|---|---|
| Board / material | ECT-32 Single Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 4 |
| Order in multiples of | 4 |
| Bundle weight | 4.84 lb |
| Outer carton (shipping) | 48.5 × 36.0 × 0.5 in |
| LTL freight class | Class 125 |
| GTIN | 812578007158 |
| SKU | 40604PCMC |
About this item
SKU 40604PCMC — 40" × 60" × 3.5", ECT-32 Single Wall Corrugated, Kraft. Sold as a bundle of 4, shipped from US warehouses.
The 40x60x3.5" ECT-32 kraft corrugated mirror box is a 4-piece flat carton for oversized mirrors, framed artwork, wide signs, glass panels, and presentation boards. Its 3.5" depth is built for broad, low-profile contents, and the 32 ECT board gives standard parcel crush strength. Listed inside dimensions are 40" x 60" x 3.5". Use it when a buyer needs a large mirror box, picture-frame shipping box, or flat mailing carton.
Nearby exact-spec options
Use these when the size, material, pack quantity, or workflow is close but not identical.
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Common questions
How many boxes do I receive in a bundle, and how many do I need to ship one item?
One bundle contains 4 pieces that assemble into a single complete mirror box carton. You'll need one full bundle (4 pieces) to package and ship one mirror or large glass item. Pricing is quoted per piece, so one complete carton costs 4x the per-piece price.
Why is this a 4-piece design instead of a traditional single-box carton?
The four-piece construction creates a custom-fit design optimized for mirrors and glass products. It allows adjustable internal support, reduces empty space, minimizes product movement during transit, and lowers shipping costs compared to oversized traditional boxes, all while providing protection.
Is this box strong enough for heavy mirrors and glass panels?
Yes. ECT-32 single-wall corrugated kraft delivers excellent crush and impact resistance specifically engineered for glass shipments. The material exceeds industry durability standards for fragile item packaging and is suitable for freight transport and stacked warehouse storage.
Do these boxes come with printed warnings about fragile contents?
Yes. All panels feature pre-printed 'Fragile,' 'Handle with Care,' and 'Do Not Lay Flat' messages that ensure proper handling throughout the logistics chain, reduce damage claims, and meet common shipping compliance requirements for glass products.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.