Ok, now that everyone else has given there take on trailers,
I will give you mine.
My 20SF sits on a tandem axle galvanized Continental.
On the set up there are 7 12in Stoltz rollers and
8 4in donut rollers. I used 14in galvanized 5/8 bolts on the 12in rollers and 4in 5/8 bolts on the 4in donuts.
Every shaft was drilled in the center of the bolt head approx. 5 inches on the 12's and 2 inches on the 4's
with an 1/8 inch dill bit, with an outlet hole and the end of the drilling. Then tapped for a zirc fitting that
enables you to be able to pump grease into the roller shaft.
I set up double 12 inch on the first cross member and the second. There is a 12 inch wide piece of rough sawn Cedar
as a walk board the length of the trailer. Also a 912 Power Winch with a stainless cable that runs the length of the walk board. What this allows me to do is launch and load the boat by myself. It is truly a one man operation.
I shot these pics in the barn just now...
Also the shafts (bolts) are tack welded on the heads to the frame.
The biggest failure is when a roller seizes on the shaft and wears out the bracket. These rollers have not been touched in over 10 years. Just take grease gun to the ramp twice a year and juice em' up.
I know the pics are over kill, but a picture to me is worth a
thousand words..
You be the judge. Decide how you want to be able to come and go as you please.
See ya, Ken