Re: Building a dock

Posted by john in la on May 23, 2021 at 08:39:00 from (97.80.71.85):

In Reply to: Building a dock posted by chuck t on May 22, 2021 at 18:43:23:

While a dock is constructed from the bottom up the plans are drawn from the top down.
You need to know the weight of the top to be able to figure the flotation needed for the bottom.
To much flotation and not enough weight and it becomes tipsy.
Not enough flotation and to much weight and it sinks.
Weight of the dock will be equal to water displaced.
By knowing water displaced you can now figure total flotation.
The common practice around here is to use blue plastic drums.
They are much stronger and thicker than molded dock pontoons.
They also do not rust like metal drums.
You want the drums to be half submerged.
This gives you some stability.
Also the bigger the dock the better.
People weight becomes a smaller percentage on a large dock.

A friend of mine has a prefabbed dock made out of aluminum and blue drums.
More like a barge than a dock.
Has a axle and wheels under it and a motor transom.
Has a one room house built on it.
Fully licensed as a trailer and boat.
He pulls it down the road to the boat launch.
Put it in the water and move it to his leased land.
Goes about 2 or 3 mph.
Once on site they use it as a fishing and hunting camp.
When finished he pulls it home.
His hunting and fishing lease is so remote people would break in and rob a built on site camp.

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