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®
How to evaluate the buoyancy capacity
of your floating dock
& the choice of floats needed
BUOYANCY (average per square foot)
Choose the required buoyancy
“Basic”
: 20 lbs / sq.ft
“Good”
: 25 lbs / sq.ft
“Commercial” type : 30 lbs & + / sq.ft
Choose the height of free-board
Free-Board *
Heights of Floats
& Buoyancy
+/- 13"
+/- 17"
+/- 20"
8” / 200 or 370 lbs
12” / 450 lbs
16” / 600 or 750 lbs
* Free-Board: height of dock
above waterline
EXAMPLE: Calculation formula to determine the quantity of
1 - Area of an 8' x 12' dock :
2 - Multiply area sq.ft by average sq.ft buoyancy :
8 ft x 12 ft = 96 sq.ft
96 ft x 25 lbs / sq.ft = 2400 lbs
Round up to the pair
of buoyancy
capacity (6 x 370= 2220 lbs of buoyancy) divided by the area of dock : 2220 lbs ÷ 96 sq. ft. = 23.125 lbs will be
the total buoyancy capacity of the dock to which you need to deduct the weight of the dock itself in order to
...ouf!
get the
MULTINAUTIC’s FLOATS : EMPTY or FOAM FILLED
(Those 2 models:
7
10 "
"
12"
24"
48"
4
H: 8”
200 lbs buoyancy
H: 8”
370 lbs buoy.
HD
H: 12”
450 lbs buoy.
R-450 H: 12”
450 lbs buoy.
R-600 H: 16”
600 lbs buoy.
H: 16”
750 lbs buoy.