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9201 South Freeway • Fort Worth, TX 76140
www.bluffmanufacturing.com
Height Differential Dock Plate Length
1” 24”
2” 30”
3” 36”
4” 42”
5” 48”
6” 54”
7” 60”
8-8 1/2 72”
Height Differential Dock Board Length
PropaneForklift ElectricForklift
3 36” 36”
5 36” 48”
7
48” 60”
9 60” 78”
11 72” 90”
13 84” -
15 96” -
Choosing Length, Width and Capacity
Choosingthecorrectlength,widthandcapacityofyour
loadingdockequipmenthelpsimproveloadingdock
operations. The following guidelines will help determine
theproperdockequipment.
Length
Todeterminetheproperdockboard,plateorramp,
collect the following information:
• DockorRampheight(D)
• Heightofhighesttruck(T)(Note:moststandard
trailersare55”,mostrefrigeratedandcontainer
trailersare59”)
• Typeofloadingequipmentused
Dock Board, Plate or Ramp Length
Dockheight(D)andHeightofhighesttruck(T)will
beusedtocalculatetheHeightDifferential,which
determines the length of the board. To determine the
heightdifferential,llouttheHeightDifferentialchart.
UsetheDockPlateandtheDockBoardorContainer
RampChartsbelowtodetermineproperlength.
Dock Board, Plate and Ramp Width
Bluff recommends a minimum product width of 12”-
18”widerthantheoverallwidthoftheforkliftorpallet
used.Forimprovedendloadingefciency,consider
increasing board width. The diagram beside shows
the extra room provided with increasing board width.
Dock Plate
Dock Board or Container Ramp
Highest Truck Height T
We recommend using 55” for
the T unless your customer
saysotherwise,since55”isthe
maximum height of most trailers.
On refrigerated or container
trailers use 59”.
Dock Height D
(Youmustmeasurethis.)
Height Differential (Maximum) H
Height Differential
T = Inches
Inches
Inches
D =
H =
truckbed(approx.100”)
60” 72” 78” 84”Widths available: