Ive built hundreds of custom biminis. The canvas
part is no problem for a diy, the stainless can be a little tougher. i bent some by hand before I invested the thousand dollars for a bendarc and crownarc. These benders make a superior bimini frame without kinks in the tubing and with a nice even crown in the top. The last full bimini i did was a four bow for a mid 30s hunter
. The price
was $1200 materials were around half of that.
Some things to keep in mind. Opt for a new age lifetime ptfe thread. Polyester thread just doesnt hold up. I just restitched a bimini that had been kinda destroyed by 2 restitches and the fabric
was still fine. the prior two restitchers ran stitch in the ditch and compromised the fabric
. It took backing up the seams with binding tape and running a seam on either side of the existing seams. Costed him $400. With the cost of restitching 3 times I could have built him a bimini that would have been warranteed 10 yrs.
If you ever plan on side panels
or windscreen. the cockpit
shape should be matched by the frame. I use the lines of the boat to determine the lines of the frames. Often this leads to a bimini that has all bows different widths. one of my pet peeves is a big box looking enclosure on a streamlined boat.