Telescoping Boxes

Telescoping boxes / buy the complete pair

Two parts. One adjustable carton.

A telescoping box uses an inner carton and a matching outer that slides over it. Each listing supplies one half. Find the matching SKUs and check each bundle count before you order.

Find my inner + outer pair Compare current prices

One inner plus one matching outer makes one set Schematic of two corrugated halves overlapping. The overlap is highlighted, with a note that approved overlap must be confirmed. Each half is ordered separately.INNEROUTEROrder both matching SKUsConfirm approved overlapEducational diagram · not to scale · no tested extension shown
One complete set requires one inner and one matching outer. The two parts are sold separately.

Get the match right

Match the SKU family and board type

Start with the inner size your packed item needs, then use its matching outer. Single-wall and double-wall versions can share the same inner dimensions while using different outer parts and bundle counts.

Confirm overlap before choosing an extension. Approved minimum overlap, maximum assembled length and load capacity are not provided here. A 48-inch half does not establish a safe 96-inch carton. Get the packing requirements confirmed for your item and route.

Matched-pair finder

Choose the family. Check both halves.

The selector groups 21 matched SKU pairs and flags one outer-only listing. Dimensions identify catalog parts; they do not certify the assembled fit.

Choose a family to see both product links and separate bundle quantities. The full pair reference below is also available.

Bundle calculations count pieces only. They do not verify item fit, extension, load capacity or shipping suitability. Check current order units and availability on both product pages.

Full inner + outer SKU reference
Separate part quantities; order both halves for a complete set
Inner family / board INNER part OUTER part Before ordering
4 x 4 x 48 in · ECT-32 T4448INNER
25 pieces per bundle		 T4448OUTER
25 pieces per bundle		 Order both halves; confirm approved overlap.
4 x 4 x 72 in · ECT-32 T4472INNER
25 pieces per bundle		 T4472OUTER
25 pieces per bundle		 Order both halves; confirm approved overlap.
6 x 6 x 48 in · ECT-32 T6648INNER
25 pieces per bundle		 T6648OUTER
25 pieces per bundle		 Order both halves; confirm approved overlap.
6 x 6 x 48 in · ECT-48 double wall T6648INNERDW
15 pieces per bundle		 T6648OUTERDW
15 pieces per bundle		 Order both halves; confirm approved overlap.
6 x 6 x 72 in · ECT-32 T6672INNER
15 pieces per bundle		 T6672OUTER
15 pieces per bundle		 Order both halves; confirm approved overlap.
8 x 8 x 48 in · ECT-32 T8848INNER
20 pieces per bundle		 T8848OUTER
20 pieces per bundle		 Order both halves; confirm approved overlap.
8 x 8 x 48 in · ECT-48 double wall T8848INNERDW
15 pieces per bundle		 T8848OUTERDW
15 pieces per bundle		 Order both halves; confirm approved overlap.
8 x 8 x 72 in · ECT-32 T8872INNER
15 pieces per bundle		 T8872OUTER
15 pieces per bundle		 Order both halves; confirm approved overlap.
10 x 6 x 57 in · ECT-32 T10657INNER
15 pieces per bundle		 T10657OUTER
15 pieces per bundle		 Order both halves; confirm approved overlap.
10 x 10 x 48 in · ECT-32 T101048INNER
20 pieces per bundle		 T101048OUTER
20 pieces per bundle		 Order both halves; confirm approved overlap.
10 x 10 x 72 in · ECT-32 T101072INNER
15 pieces per bundle		 T101072OUTER
15 pieces per bundle		 Order both halves; confirm approved overlap.
12 x 4 x 48 in · ECT-32 T12448INNER
15 pieces per bundle		 T12448OUTER
15 pieces per bundle		 Order both halves; confirm approved overlap.
12 x 12 x 48 in · ECT-32 T121248INNER
15 pieces per bundle		 T121248OUTER
15 pieces per bundle		 Order both halves; confirm approved overlap.
12 x 12 x 72 in · ECT-32 T121272INNER
15 pieces per bundle		 T121272OUTER
15 pieces per bundle		 Order both halves; confirm approved overlap.
14 x 14 x 40 in · ECT-32 T141440INNER
15 pieces per bundle		 T141440OUTER
15 pieces per bundle		 Order both halves; confirm approved overlap.
16 x 16 x 40 in · ECT-32 T161640INNER
10 pieces per bundle		 T161640OUTER
10 pieces per bundle		 Order both halves; confirm approved overlap.
18 x 18 x 40 in · ECT-32 T181840INNER
10 pieces per bundle		 T181840OUTER
10 pieces per bundle		 Order both halves; confirm approved overlap.
20 x 20 x 40 in · ECT-32 T202040INNER
10 pieces per bundle		 T202040OUTER
10 pieces per bundle		 Order both halves; confirm approved overlap.
24 x 8 x 57 in · double wall · confirm order unit T24857INDW
5 pieces per bundle		 T24857OUTDW
5 pieces per bundle		 Confirm the inner order unit before buying: the listing says 5 per bundle and also Sold As Each. Ask Packrift to confirm how many pieces one order unit supplies. Also confirm outer dimensions: T24857OUTDW is titled 24x8x57, while its specification lists 24.75 x 8.75 x 57 inches.
37 x 4 x 30 in · ECT-32 T37430INNER
10 pieces per bundle		 T37430OUTER
10 pieces per bundle		 Order both halves; confirm approved overlap.
48 x 6 x 38 in · ECT-44 T48638INHD
10 pieces per bundle		 T48638OUTHD
10 pieces per bundle		 Confirm outer dimensions before buying: its title and specifications disagree. No fit recommendation is made for this pair.
30.5 × 6.5 × 24 in · outer only Matching inner unlisted T30624OUTER
10 pieces per bundle		 Outer only. T30624INNER is referenced in the outer listing but has no matching product in this collection snapshot. Confirm the inner part and availability with Packrift before ordering a complete set.

Current product pricing

ECT-32 parts: 24 to 48-inch listings

Each row is one half. Price per box refers to that individual half; the complete set requires the inner and outer parts. The 30.5 × 6.5 × 24-inch outer has no matched inner listing here.

ECT-32 telescoping sets, 24 to 48 in
Size (in)Piece and boardBoxes per bundlePrice per bundlePrice per box
30.5 x 6.5 x 24Outer, ECT-32 10 $61.07 $6.11
37 x 4 x 30Inner, ECT-32 10 $112.32 $11.23
37.5 x 4.5 x 30Outer, ECT-32 10 $115.41 $11.54
14 x 14 x 40Inner, ECT-32 15 $96.31 $6.42
14.5 x 14.5 x 40Outer, ECT-32 15 $100.45 $6.70
16 x 16 x 40Inner, ECT-32 10 $75.11 $7.51
16.5 x 16.5 x 40Outer, ECT-32 10 $79.48 $7.95
18 x 18 x 40Inner, ECT-32 10 $139.94 $13.99
18.5 x 18.5 x 40Outer, ECT-32 10 $145.01 $14.50
20 x 20 x 40Inner, ECT-32 10 $100.62 $10.06
20.5 x 20.5 x 40Outer, ECT-32 10 $112.81 $11.28
4 x 4 x 48Inner, ECT-32 25 $65.42 $2.62
4.5 x 4.5 x 48Outer, ECT-32 25 $72.33 $2.89
6 x 6 x 48Inner, ECT-32 25 $93.46 $3.74
6.5 x 6.5 x 48Outer, ECT-32 25 $86.55 $3.46
8 x 8 x 48Inner, ECT-32 20 $73.80 $3.69
8.5 x 8.5 x 48Outer, ECT-32 20 $80.62 $4.03
10 x 10 x 48Inner, ECT-32 20 $89.72 $4.49
10.5 x 10.5 x 48Outer, ECT-32 20 $118.98 $5.95
12 x 4 x 48Inner, ECT-32 15 $101.18 $6.75
12.5 x 4.5 x 48Outer, ECT-32 15 $112.40 $7.49
12 x 12 x 48Inner, ECT-32 15 $113.13 $7.54
12.5 x 12.5 x 48Outer, ECT-32 15 $118.49 $7.90

72-inch, double-wall and heavy-duty parts

Check the count for your exact pair. For example, the 4 × 4 × 72-inch inner and its outer each list 25 per bundle; several other 72-inch families list 15. Double-wall 6 × 6 × 48-inch parts list 15 per bundle, while the ECT-32 versions list 25.

72 in, double wall and heavy duty telescoping sets
Size (in)Piece and boardBoxes per bundlePrice per bundlePrice per box
48 x 6 x 38Inner, ECT-44 10 $198.89 $19.89
6 x 6 x 48Inner, ECT-48 double wall 15 $124.59 $8.31
6.75 x 6.75 x 48Outer, ECT-48 double wall 15 $138.49 $9.23
8 x 8 x 48Inner, ECT-48 double wall 15 $149.26 $9.95
8.75 x 8.75 x 48Outer, ECT-48 double wall 15 $164.82 $10.99
10 x 6 x 57Inner, ECT-32 15 $117.03 $7.80
10.5 x 6.5 x 57Outer, ECT-32 15 $125.57 $8.37
24 x 8 x 57Inner, double wall 5 $105.96 $21.19
24 x 8 x 57Outer, ECT-48 double wall 5 $108.98 $21.80
4 x 4 x 72Inner, ECT-32 25 $153.48 $6.14
4.5 x 4.5 x 72Outer, ECT-32 25 $164.65 $6.59
6 x 6 x 72Inner, ECT-32 15 $94.60 $6.31
6.5 x 6.5 x 72Outer, ECT-32 15 $128.74 $8.58
8 x 8 x 72Inner, ECT-32 15 $165.06 $11.00
8.5 x 8.5 x 72Outer, ECT-32 15 $175.06 $11.67
10 x 10 x 72Inner, ECT-32 15 $197.57 $13.17
10.5 x 10.5 x 72Outer, ECT-32 15 $209.53 $13.97
12 x 12 x 72Inner, ECT-32 15 $234.65 $15.64
12.5 x 12.5 x 72Outer, ECT-32 15 $247.57 $16.50

Catalog checks needed: T24857INDW lists 5 per bundle and also “Sold As Each”; confirm the order unit. T48638OUTHD has conflicting title and specification dimensions; confirm the outer dimensions. These exceptions are flagged in the finder.

Before you choose the assembled length

01 / Measure with protection

Record the packed item’s three dimensions and weight, including cushioning and end protection. Compare the inner carton’s stated dimensions.

02 / Confirm the overlap

Ask for the required overlap and approved assembled length for your exact pair and application. “Telescoping” describes the construction; it does not establish an extension limit.

03 / Check both order units

One bundle of inners is not a bundle of complete cartons. Match the two SKUs and check the pieces supplied by each order unit.

04 / Check the finished pack

Confirm closure, cushioning and handling requirements. Use an assembled sample to review fit before committing to a larger order.

Common questions

Do I need both pieces?

Yes. A complete telescoping set requires one inner and its matching outer. Open both listings and order enough of each half. The finder calculates separate bundle quantities where the order unit is clear.

Can I combine any inner and outer with similar dimensions?

Use the matching SKU family and board type. A 6 × 6 × 48-inch ECT-32 inner pairs with T6648OUTER; the double-wall inner pairs with T6648OUTERDW. Similar size names alone do not establish compatibility.

How far can I extend a telescoping box?

That depends on the approved overlap and the packing requirements for the exact pair. This catalog does not supply an approved maximum extension. Confirm it before selecting a set for a longer item.

Does ECT tell me how much weight the box can carry?

ECT is an edge crush rating for the board, not a verified payload limit for your assembled telescoping carton. Confirm suitability for the contents, overlap, closure and handling conditions.

Where are telescoping mailing tubes?

Spiral-wound telescoping tubes are in the mailing tubes collection.

Get help with a complete order

Send both SKUs with your packing requirements

Include the number of complete sets, packed dimensions and weight, intended assembled length, delivery ZIP and receiving details. Ask for overlap and order-unit confirmation where needed.

Request a matched-pair quote

Shipping boxes · Heavy-duty and double-wall boxes · Gaylord boxes and lids · Large cardboard boxes · All corrugated boxes

IN STOCK 24x8x57 Double Wall Telescoping Inner Boxes
Boxes - Corrugated

24x8x57 Double Wall Telescoping Inner Boxes

PN: T24857INDW

24 x 8 x 57 in 5 PER BUNDLE
$105.96 / EACH
IN STOCK Adjustable 2-piece telescoping outer boxes engineered for tall and irregularly shaped items. ECT-32 kraft corrugated with full overlap (FOL) bottoms ensures maximum stacking strength and freight stability. Sold in bundles of 10–pair with T30624INNER inner cartons to complete your protective packaging system.
Boxes - Corrugated

30.5x6.5x24 ECT-32 Telescoping Outer Boxes 10-Pack

PN: T30624OUTER

30 1/2 x 6.5 x 24 in ECT-32 Corrugated 10 PER BUNDLE
$61.07 / BUNDLE
IN STOCK Adjust from 4" to 30" height to fit tall and irregularly shaped items with ECT-32 kraft corrugated strength. These telescoping inner boxes feature a full overlap bottom for superior stacking performance in your warehouse. Sold in bundles of 10–pair with T37430OUTER to complete the set.
Boxes - Corrugated

37x4x30 ECT-32 Telescoping Inner Boxes 10-Pack

PN: T37430INNER

37 x 4 x 30 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$112.32 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer carton designed for tall and irregularly shaped items. ECT-32 kraft corrugated construction with full overlap (FOL) bottom delivers superior stacking strength and freight protection. Sold in bundles of 10–pair with T37430INNER inner box to complete your set.
Boxes - Corrugated

37.5x4.5x30 ECT-32 Kraft Telescoping Outer Box 10-Pack

PN: T37430OUTER

37 1/2 x 4.5 x 30 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$115.41 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner carton designed for tall and irregularly shaped items up to 48 inches. Built from ECT-32 kraft corrugated with reinforced FOL bottom for maximum stacking strength. Pair with T4448OUTER to complete your shipping solution–25 inner boxes per bundle.
Boxes - Corrugated

4x4x48 ECT-32 Kraft Telescoping Inner Box 25-Pack

PN: T4448INNER

4 x 4 x 48 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$65.42 / BUNDLE
IN STOCK Adjustable telescoping inner boxes designed for tall and irregularly shaped shipments. ECT-32 single wall kraft corrugated with FOL bottom reinforcement ensures stack strength during transport. Sold as bundle of 15–pair with T141440OUTER carton to complete your two-piece shipping system.
Boxes - Corrugated

14x14x40 ECT-32 Kraft Corrugated Telescoping Inner Boxes 15-Pack

PN: T141440INNER

14 x 14 x 40 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$96.31 / BUNDLE
IN STOCK Engineered for tall and irregularly shaped shipments, these 14.5x14.5x40" telescoping outer boxes feature adjustable two-piece construction with ECT-32 kraft corrugated strength. FOL (full overlap) bottom reinforcement and sold in bundles of 15 for maximum volume savings.
Boxes - Corrugated

14.5x14.5x40 ECT-32 Kraft Telescoping Outer Boxes 15-Pack

PN: T141440OUTER

14 1/2 x 14 1/2 x 40 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$100.45 / BUNDLE
IN STOCK Adjustable telescoping inner boxes designed for tall and irregularly shaped items. Manufactured from ECT-32 single-wall kraft corrugated with full overlap bottom reinforcement. Sold as bundle of 10–pair with T161640OUTER cartons to complete your two-piece shipping solution.
Boxes - Corrugated

16x16x40 ECT-32 Kraft Telescoping Inner Boxes 10-Pack

PN: T161640INNER

16 x 16 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$75.11 / BUNDLE
IN STOCK Adjustable telescoping outer boxes designed for tall and irregularly shaped items. 16.5x16.5x40" dimensions with ECT-32 single-wall corrugated kraft construction and reinforced FOL bottom. Sold in bundles of 10–pair with T161640INNER to complete your two-piece system.
Boxes - Corrugated

16.5x16.5x40 ECT-32 Kraft Telescoping Outer Boxes 10-Pack

PN: T161640OUTER

16 1/2 x 16 1/2 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$79.48 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes designed for tall and irregularly shaped items. 18" × 18" × 40" dimensions in ECT-32 kraft corrugated with full overlap bottom for added strength. Sold in bundles of 10–pair with T181840OUTER to complete your shipping solution.
Boxes - Corrugated

18x18x40 ECT-32 Kraft Telescoping Inner Box 10-Pack

PN: T181840INNER

18 x 18 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$139.94 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer boxes built for tall and irregularly shaped shipments. 18.5×18.5×40" dimensions with ECT-32 kraft corrugated construction and reinforced FOL bottom provide superior stacking performance and freight stability. Sold in bundles of 10–pair with matching inner carton (T181840INNER) to complete your packaging solution.
Boxes - Corrugated

18.5x18.5x40 ECT-32 Kraft Telescoping Outer Boxes 10-Pack

PN: T181840OUTER

18 1/2 x 18 1/2 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$145.01 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner cartons sized 20x20x40 inches–perfect for tall, oversized, and irregularly shaped shipments. Manufactured from durable ECT-32 kraft corrugated with full overlap bottom reinforcement for maximum stacking strength. Sold as bundle of 10; pair with T202040OUTER to complete your shipping set.
Boxes - Corrugated

20x20x40 ECT-32 Kraft Telescoping Inner Boxes 10-Pack

PN: T202040INNER

20 x 20 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$100.62 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer boxes sized 20.5" x 20.5" x 40" for tall, irregular items. Engineered from ECT-32 single-wall kraft corrugated with full overlap bottom for maximum stacking strength. Sold as a bundle of 10 outer cartons–pair with T202040INNER to complete the system.
Boxes - Corrugated

20.5x20.5x40 ECT-32 Kraft Telescoping Outer Boxes 10-Pack

PN: T202040OUTER

20 1/2 x 20 1/2 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$112.81 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer cartons designed for tall and irregularly shaped items. ECT-32 kraft corrugated with full overlap bottom for maximum stacking strength. Sold as bundle of 25–pair with T4448INNER for complete packaging solution.
Boxes - Corrugated

4.5x4.5x48 ECT-32 Kraft Corrugated Telescoping Outer Box 25-Pack

PN: T4448OUTER

4 1/2 x 4 1/2 x 48 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$72.33 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes designed for tall and irregularly shaped items up to 48 inches. ECT-32 kraft corrugated with reinforced FOL bottom delivers reliable protection and compression strength. Sold as a 25-pack bundle–pair with T6648OUTER outer cartons to complete your shipping set.
Boxes - Corrugated

6x6x48 ECT-32 Kraft Telescoping Inner Boxes 25-Pack

PN: T6648INNER

6 x 6 x 48 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$93.46 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer boxes designed for tall and irregularly shaped items. ECT-32 single-wall kraft corrugated with full overlap bottom for maximum stacking strength. Sold as bundle of 25–pair with T6648INNER for a complete set.
Boxes - Corrugated

6.5x6.5x48 ECT-32 Kraft Telescoping Outer Boxes 25-Pack

PN: T6648OUTER

6 1/2 x 6 1/2 x 48 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$86.55 / BUNDLE
IN STOCK ECT-32 kraft telescoping inner boxes engineered for tall and irregularly shaped shipments. 8" x 8" x 48" adjustable two-piece corrugated cartons with full overlap (FOL) bottom construction. Sold as bundle of 20–pair with T8848OUTER to complete your shipping set.
Boxes - Corrugated

8x8x48 ECT-32 Kraft Telescoping Inner Boxes 20-Pack

PN: T8848INNER

8 x 8 x 48 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$73.80 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer boxes designed for tall, irregularly shaped items up to 48" in height. Manufactured from ECT-32 kraft corrugated with full overlap (FOL) bottoms for superior stacking strength and load stability. Sold as a bundle of 20–pair with T8848INNER to complete your shipping solution.
Boxes - Corrugated

8.5x8.5x48 ECT-32 Kraft Adjustable Telescoping Outer Boxes 20-Pack

PN: T8848OUTER

8 1/2 x 8 1/2 x 48 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$80.62 / BUNDLE
IN STOCK 10x10x48 ECT-32 Kraft Telescoping Inner Box - Adjustable Tall Carton, 20-Pack
Boxes - Corrugated

10x10x48 ECT-32 Kraft Telescoping Inner Box 20-Pack

PN: T101048INNER

10 x 10 x 48 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$89.72 / BUNDLE
IN STOCK 10.5x10.5x48" Telescoping Outer Box ECT-32 Kraft - 20-Pack Bundle
Boxes - Corrugated

10.5x10.5x48 ECT-32 Kraft Telescoping Outer Box 20-Pack

PN: T101048OUTER

10 1/2 x 10 1/2 x 48 in ECT-32 Corrugated 20 PER BUNDLE
$118.98 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes designed for tall and irregularly shaped items. Made from ECT-32 kraft corrugated with full overlap bottoms for maximum stacking strength. Sold as bundle of 15–pair with T12448OUTER to complete your shipping solution.
Boxes - Corrugated

12x4x48 ECT-32 Kraft Telescoping Inner Boxes 15-Pack

PN: T12448INNER

12 x 4 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$101.18 / BUNDLE
IN STOCK Adjust height to fit tall and irregular items with this two-piece telescoping outer box. ECT-32 kraft construction with full overlap bottom delivers reliable stacking strength and freight stability. Sold as bundle of 15–pair with T12448INNER to complete your shipping solution.
Boxes - Corrugated

12.5x4.5x48 ECT-32 Kraft Adjustable Telescoping Outer Boxes 15-Pack

PN: T12448OUTER

12 1/2 x 4.5 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$112.40 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes sized 12x12x48" in ECT-32 kraft corrugated for maximum flexibility with tall and irregularly shaped items. Features a full overlap (FOL) bottom for superior stacking strength and durability. Sold as a bundle of 15–pair with T121248OUTER for complete shipping protection.
Boxes - Corrugated

12x12x48 ECT-32 Kraft Telescoping Inner Boxes 15-Pack

PN: T121248INNER

12 x 12 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$113.13 / BUNDLE
IN STOCK Ship tall and irregularly shaped items with confidence using these ECT-32 kraft telescoping boxes. The adjustable two-piece design eliminates wasted space while the full overlap bottom delivers superior stacking strength. Bundle of 15 outers–pair with T121248INNER cartons for complete protection.
Boxes - Corrugated

12.5x12.5x48 ECT-32 Kraft Telescoping Corrugated Boxes 15-Pack

PN: T121248OUTER

12 1/2 x 12 1/2 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$118.49 / BUNDLE
IN STOCK Adjustable 48x6x38" telescoping inner boxes built from ECT-44 kraft corrugated for maximum stacking strength on tall and irregularly shaped items. Two-piece design collapses flat for 40% better freight efficiency and warehouse storage. Sold in bundles of 10 with full overlap bottoms for added durability.
Boxes - Corrugated

48x6x38 ECT-44 Kraft Telescoping Boxes Heavy-Duty 10-Pack

PN: T48638INHD

48 x 6 x 38 in ECT-44 Corrugated 10 PER BUNDLE
$198.89 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes designed for tall and irregularly shaped items. 6" x 6" x 48" dimensions with ECT-48 double wall kraft corrugated construction and full overlap (FOL) bottom reinforcement. Sold in bundles of 15 and pairs with our matching outer boxes for complete protective shipping solutions.
Boxes - Corrugated

6x6x48 ECT-48 Kraft Double Wall Telescoping Inner Boxes 15-Pack

PN: T6648INNERDW

6 x 6 x 48 in D.W./ECT-48 Corrugated 15 PER BUNDLE
$124.59 / BUNDLE
IN STOCK Engineered for tall and irregularly shaped items, these 6.75x6.75x48 double wall telescoping cartons feature an adjustable two-piece design with FOL bottom reinforcement. ECT-48 kraft corrugated construction rated for heavy stacking. Sold in bundles of 15 outer boxes (pair with T6648INNERDW inner cartons to complete your set).
Boxes - Corrugated

6.75x6.75x48 ECT-48 Double Wall Telescoping Boxes 15-Pack

PN: T6648OUTERDW

6 3/4 x 6 3/4 x 48 in D.W./ECT-48 Corrugated 15 PER BUNDLE
$138.49 / BUNDLE
IN STOCK Adjustable 8x8x48" double wall telescoping inner cartons engineered for tall and irregularly shaped items. ECT-48 kraft corrugated with full overlap bottom delivers superior stacking strength and crush resistance. Sold as bundle of 15–pair with matching T8848OUTERDW outer carton to complete your two-piece shipping system.
Boxes - Corrugated

8x8x48 ECT-48 Adjustable Double Wall Telescoping Inner Boxes 15-Pack

PN: T8848INNERDW

8 x 8 x 48 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$149.26 / BUNDLE
IN STOCK 8.75x8.75x48 ECT-48 Double Wall Telescoping Outer Boxes 15-Pack
Boxes - Corrugated

8.75x8.75x48 ECT-48 Double Wall Telescoping Outer Boxes 15-Pack

PN: T8848OUTERDW

8 3/4 x 8 3/4 x 48 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$164.82 / BUNDLE
IN STOCK 10x6x57" ECT-32 Telescoping Inner Boxes - Adjustable Tall Cartons, Bundle of 15
Boxes - Corrugated

10x6x57 ECT-32 Telescoping Inner Boxes 15-Pack

PN: T10657INNER

10 x 6 x 57 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$117.03 / BUNDLE
IN STOCK 10.5x6.5x57" Telescoping Outer Boxes ECT-32 Kraft - Adjustable Tall Cartons, 15-Pack
Boxes - Corrugated

10.5x6.5x57 ECT-32 Kraft Telescoping Outer Boxes 15-Pack

PN: T10657OUTER

10 1/2 x 6.5 x 57 in ECT-32 Corrugated 15 PER BUNDLE
$125.57 / BUNDLE
IN STOCK ECT-48 kraft telescoping outer cartons designed for tall and irregularly shaped items with maximum crush resistance. Adjustable two-piece construction expands to accommodate variable heights while maintaining full overlap (FOL) bottom strength. Sold as bundle of 5–pair with T24857INDW inner carton for complete telescoping box set.
Boxes - Corrugated

24.75x8.75x57 ECT-48 Adjustable Double Wall Telescoping Outer Boxes 5-Pack

PN: T24857OUTDW

24.75 x 8.75 x 57 in ECT-48 Double Wall Corrugated 5 PER BUNDLE
$108.98 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes built from ECT-32 single-wall corrugated kraft for superior strength and consistent stacking performance. 4" x 4" x 72" dimensions accommodate tall and irregularly shaped items with a full overlap bottom design. Sold in bundles of 25–pair with T4472OUTER to complete the set.
Boxes - Corrugated

4x4x72 ECT-32 Kraft Telescoping Inner Box 25-Pack

PN: T4472INNER

4 x 4 x 72 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$153.48 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer cartons designed for tall and irregularly shaped items. ECT-32 single wall kraft corrugated with FOL bottom reinforcement delivers reliable stacking performance and edge crush strength. Sold in bundles of 25–pair with T4472INNER inner boxes to complete your set.
Boxes - Corrugated

4.5x4.5x72 ECT-32 Kraft Telescoping Outer Boxes 25-Pack

PN: T4472OUTER

4 1/2 x 4 1/2 x 72 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$164.65 / BUNDLE
IN STOCK Adjust the height of your tall and irregularly shaped shipments with these ECT-32 kraft telescoping inner boxes. Each bundle of 15 features a reinforced FOL bottom and two-piece design for reliable stacking and freight efficiency. Pair with T6672OUTER to complete your telescoping set.
Boxes - Corrugated

6x6x72 ECT-32 Kraft Telescoping Inner Boxes 15-Pack

PN: T6672INNER

6 x 6 x 72 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$94.60 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer cartons engineered for tall and irregularly shaped items. ECT-32 kraft corrugated construction with FOL bottom delivers superior stacking strength and freight stability. Sold as 15-unit bundle–pair with T6672INNER for complete packaging solution.
Boxes - Corrugated

6.5x6.5x72 ECT-32 Kraft Telescoping Outer Boxes 15-Pack

PN: T6672OUTER

6 1/2 x 6 1/2 x 72 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$128.74 / BUNDLE
IN STOCK Maximize tall item shipping with adjustable ECT-32 telescoping inner boxes. The 8x8x72" kraft corrugated carton features a two-piece design that compresses for freight efficiency when empty and expands to secure irregularly shaped products. Sold in bundles of 15–pair with matching T8872OUTER outer boxes to create a complete telescoping set.
Boxes - Corrugated

8x8x72 ECT-32 Kraft Corrugated Telescoping Inner Box 15-Pack

PN: T8872INNER

8 x 8 x 72 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$165.06 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer boxes designed for tall and irregularly shaped items. ECT-32 kraft corrugated construction with full overlap (FOL) bottom delivers superior stacking strength and freight efficiency. Sold as a bundle of 15–pair with T8872INNER cartons to complete your tall box solution.
Boxes - Corrugated

8.5x8.5x72 ECT-32 Telescoping Outer Boxes 15-Pack

PN: T8872OUTER

8 1/2 x 8 1/2 x 72 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$175.06 / BUNDLE
IN STOCK 10x10x72" Telescoping Inner Boxes, ECT-32 Kraft, Bundle of 15
Boxes - Corrugated

10x10x72 ECT-32 Kraft Telescoping Inner Boxes 15-Pack

PN: T101072INNER

10 x 10 x 72 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$197.57 / BUNDLE
IN STOCK 10.5x10.5x72" Telescoping Outer Kraft Corrugated Box ECT-32 - Bundle of 15
Boxes - Corrugated

10.5x10.5x72 ECT-32 Kraft Telescoping Outer Corrugated Box 15-Pack

PN: T101072OUTER

10 1/2 x 10 1/2 x 72 in ECT-32 Corrugated 15 PER BUNDLE
$209.53 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes designed for tall and irregularly shaped items up to 72" in height. Manufactured from ECT-32 kraft corrugated with full overlap (FOL) bottom construction for maximum stacking strength. Sold as a 15-pack bundle–pair with T121272OUTER to complete your shipping solution.
Boxes - Corrugated

12x12x72 ECT-32 Kraft Telescoping Inner Boxes 15-Pack

PN: T121272INNER

12 x 12 x 72 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$234.65 / BUNDLE
IN STOCK Maximize vertical shipping efficiency with adjustable ECT-32 kraft telescoping outer boxes sized 12.5x12.5x72". The two-piece adjustable design accommodates tall and irregularly shaped items while FOL bottom construction delivers superior stacking strength. Sold in bundles of 15–pair with matching inner cartons for complete packaging solution.
Boxes - Corrugated

12.5x12.5x72 ECT-32 Telescoping Outer Boxes 15-Pack

PN: T121272OUTER

12 1/2 x 12 1/2 x 72 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$247.57 / BUNDLE

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