Trailer Construction
Pontoon trailers are subject to stress that most boat
trailers don’t encounter. Ordinary trailers carry the weight of the
boat, no matter how large, primarily over the center of the axles. A
couple of strong bunks down the center of the trailer and the largest
boat will go down the road safely.
Pontoon trailers carry the weight of the pontoon boat on 72” or 77”
centers. The weight of the boat is carried on the outer edges of the
trailer frame and the axle. The frame is subject to twisting and flexing
that ordinary boat trailers do not encounter. That’s why its important
to connect the side rails of the frame in as many places as possible, to
strengthen the frame.
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The regular boat trailer on
the right doesn’t need more than two cross member to hold the
frame together because there is little stress on the outside
frame, all the weight is near the center of the axle. The
trailer on the left (NOT OURS) is held together by only two
cross members. |
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The picture to the right is of out
PT-24T/26T, our most popular models for heavier 22’-25’
pontoons. Five cross members connect the frame horizontally. Two
vertical braces in the back help support the weight of large
engines. Three vertical braces in the front help prevent
“bucking”. This frame is supported by #3500 axles that will take your
boat anywhere.
Next time you see a pontoon boat and trailer on the highway, get
behind it and see if the frame is twisting. We followed a boat
on Hwy. 75 and we thought the trailer was going to twist apart.
The owner was pulling it with a big Dodge dually going 70 MPH.
It wasn’t one of our trailers. |
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Our 20' pontoon trailers have 4 cross braces,
22'-24' have 5 cross braces and 26'-28' have 6 cross braces
and a reinforced front and
stern.

3/16" x 4" box tube steel frame.
Trailers over 24' have the tongue
15' into the frame.
This frame is the strongest in the industry. |
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Our bunk support brackets attach to the main frame
for maximum strength. Each bracket is fastened
to a cross
member welded into the main frame and by loosening a U bolt the
bunks are adjustable.
Fully welded bunks can be strong when
welded to the cross members as in the center image above, but
the
bunks can not be adjusted and will only fit the pontoon boat the
trailer was made for.
Bunk supports bolted to a welded
attachment rely on two welds to support the bunk brackets.
When the bracket is adjusted out for 8’6” pontoons all of the weight
and pressure of the boat is applied to only two weld points. |
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