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B4520-11 - Dock Bumper 4.5 x 20 x 11
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Mounting Styles:
4 1/4" x 3/4" Wedge Anchors:(8) Wedge Anchors @ $2.25 ea. (add $18)
Galvanized Angles:Angles Only (Lead Times May Vary) (add $22)
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Laminated Rubber Dock Bumper.
4.5" thick x 20" high x 11" wide.
American Made


HomeDock BumpersLaminated Dock BumpersDrawing (PDF)Brochure (PDF)

Dock Bumper Model: B4520-11

Specification U.S. Metric
Projection 4.5" 114.3
Height 20" 508
Rubber Width 7" 177.8
Bolt Hole Centers 11" 279.4
Overall Width 13" 330.2
Weight 42 lbs. 19.1 kg

All measurements +/- 1/8"

  • Provides protection against vehicle damage to docks, buildings and cargo
  • Absorbs over 80% of truck impact and shock to protect dock and building
  • Leading bumper sold in the industry today
  • Standard sizes shipped within 24 hours
  • Eliminates costly repairs from severe shock to docks
  • Constructed to last and provide years of protection
  • Anchored through thick steel angles to provide stability and shape retention
  • Performs on any truck dock under any weather condition or prolonged exposure
  • Maintenance free
  • 5 year warranty
  1. Furnish and install rubber dock bumpers as manufactured by Durable Corporation Model No(s)______. Resilient rubber material of bumpers shall be rubberized-fabric truck tires cut to uniform size pads and punched to receive 3/4" supporting rods.
  2. All bumpers must be 4.5" thick (projection from dock), and closed with two 3" x 3" x 1/4" structural angles under approximately 1,500 lbs of pressure The angles are welded to 3/4" rods at one end and closed with threaded rod and nut at the other end.
  3. The anchor leg of angle extends a minimum of 3" beyond the rubber surface at either end and contains two or three 13/16" anchor bolt holes as required (Anchor bolts are supplied separately.)
  4. The finish for exposed metal parts shall be Black, or hot dipped galvanized (Galvanized has additional cost).
  5. Bumper to hold dimensions of 4.5" x 11" x 20" (LWH) - bumper rubber dimensions to be 4.5" x 7" x 20" (LWH) - Bumper metric dimensions to be 114.3mm x 279.4mm x 508mm (LWH)

20" High x 11" Long x 4.5" Thick

Wedge Anchors sold separately.

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Loading Dock Equipment
March 27, 2019


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