37 x 4 x 30 - 60" 2-piece Telescopic Boxes

Protect fragile mirrors and valuable artwork.
  • Recommended for large framed art or mirrors.
  • Insert pictures or mirrors up to 36" wide.
  • Height expands from 30 to 60".
  • Top and bottom included.
200 LB. TEST
SOLD IN BUNDLE QUANTITIES
MODEL
NO.		 INSIDE DIM.
L x W x H		 BOX NAME HOLDS
CU. FT.		 PRICE PER BOX BUNDLE/
BALE QTY.		 IN STOCK
SHIPS TODAY
10 100 250 500 1,000+
S-4778 37 x 4 x 30 - 60" X-Large 2 pc.
 Telescopic		 5.3 $22.10 $21.01 $20.00 $19.10 $18.44 10 / 120  ADD
DIMENSIONS:
  • Actual Height: 60" without overlap of top over bottom
MATERIAL: 
  • C flute
FEATURES:
  • All boxes open along the length (first dimension).
  • Seams are glued.
SPECIFICATIONS:
  • Meets ASTM D5118
TERMINOLOGY:
  • 200# Test vs 32 ECT (Edge Crush Test):
    • 200# Test:
      • 60% stronger bursting strength.
      • Recommended by UPS for shipping up to 40 lbs.
    • 32 ECT:
      • Recommended by UPS for shipping up to 30 lbs.
  • Pound Test Refers to Bursting Strength:
    • 200# test boxes withstand 200 lbs/sq.in. of side wall pressure before bursting.
  • ECT Refers to Stacking Strength:
    • 32 ECT boxes withstand 32 lbs/linear inch of stacking weight before crushing.
    • An alternative for lightweight shipments.
BOX STRENGTH GUIDELINES: (Maximum weight per box)                  
FIBER BOX HANDBOOK UPS GUIDELINES
32 ECT Single Wall65 lbs30 lbs
200# Single Wall65 lbs40 lbs
275# Single Wall95 lbs65 lbs
350# Single Wall120 lbs80 lbs
200# Double Wall80 lbs60 lbs
275# Double Wall100 lbs80 lbs
350# Double Wall120 lbs100 lbs
500# Double Wall160 lbs140 lbs
Availability: In Stock
Unit Weight: 4.99 lbs.\2.27 kg
SDS Sheet
Catalog Page 69
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SPECIFICATIONSMETRICIMPERIAL
HOLDS0.1 cu. M5.3 cu. ft.
INSIDE LENGTH x WIDTH x HEIGHT94 cm x 101.6 mm x 76-152 cm37 x 4 x 30 - 60"
Availability: In Stock
Unit Weight: 4.99 lbs.\2.27 kg
SDS Sheet
Catalog Page 69
Email Item
Availability: In Stock
Unit Weight: 4.99 lbs.\2.27 kg
SDS Sheet
Catalog Page 69
Email Item
Add to Shopping List
Availability: In Stock
Unit Weight: 4.99 lbs.\2.27 kg
SDS Sheet
Catalog Page 69
Email Item
SAME DAY SHIPPING | HUGE SELECTION IN STOCK | SHIPS FROM 14 LOCATIONS
04/01/2025 01:18:40 AM; CNWEB3