16x16x18 Boxes
16x16x18 Boxes
Not sure which to pick? Use the Box Size Calculator to get a recommendation.
Parent category: Corrugated Boxes Buying Guide
16x16x18 boxes are 4,608 cubic inches of space — a standard corrugated shipping size for ecommerce orders, apparel, and mid-weight product kits.
Quick facts
| In-stock SKUs | 4 |
|---|---|
| Total options | 4 |
| Price from | $47.99 |
| Price to | $86.14 |
| Average price | $65.16 |
| Materials | kraft, corrugated |
| Strengths | ECT-32, ECT-48 |
| Pack quantities | 10, 15, 20, 25 |
In-stock options
-
18x16x16 ECT-32 Kraft Corrugated Boxes - Bundle of 20
-
16x16x18 ECT-32 Kraft Corrugated Boxes - Reliable Shipping, 25-Pack
-
18x16x16 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Kraft, Bundle of 10
-
16x16x18 ECT-48 Double Wall Boxes - Heavy Duty Kraft Cartons, Bundle of 15
When to use
- Shipping rigid goods that fit 16x16x18 inches (L x W x H).
- Orders where dimensional weight matters — this size avoids wasted cube.
- Bulk case packs for 3PLs, Amazon FBM, and DTC fulfillment lines.
When not to use
- Goods significantly smaller than 16x16x18 — you pay for wasted void.
- Items over 50 lb — step up to ECT-44 or ECT-48 double-wall.
Related
Frequently asked
What is a 16x16x18 box used for?
16x16x18 boxes are 4,608 cubic inches of space — a standard corrugated shipping size for ecommerce orders, apparel, and mid-weight product kits.
What's the dimensional weight (DIM weight) of a 16x16x18 box?
A 16x16x18 box has 4,608 cubic inches of interior space. At the FedEx/UPS Ground domestic divisor of 139, the dimensional weight rounds up to about 34 lb (33.15 lb before rounding). Carriers charge for the greater of actual weight or DIM weight, so this is the minimum billable weight for a 16x16x18 carton even if it's lightweight.
What ECT strength ratings are 16x16x18 boxes available in?
Packrift stocks 16x16x18 boxes in ECT-32 and ECT-48 strength ratings. ECT-32 is the standard for most ecommerce shipments under ~50 lb; ECT-44 and higher are for heavier loads, double-stacked pallets, or freight shipping. 4 in-stock SKUs are available across these grades.
What case-pack sizes do 16x16x18 boxes come in?
Packrift sells 16x16x18 boxes in case packs of 10, 15, 20, and 25 per case. Bulk pricing improves with larger case quantities — see each product page for the exact case size.
What box sizes are similar to 16x16x18?
Buyers comparing 16x16x18 boxes also consider 17x17x17, 16x16x16, 16x16x20, and 16x18x18 boxes. See related sizes below or use the box size calculator to find the closest fit for your product dimensions.