[quote="KylefromNJ"]it was said that when you pull out the boat and the salt water will react w the PT wood and then leech into the carpet, touching the toons, and that's where the problem begins...[/quote]
This exactly, my first experience years ago with an old Tracker that had been sitting on a wood bunk trailer, the keel area was peppered with small holes, the sign was white powdery substance on the black carpet attached to the bunks. PT wood used to have a lot of copper in it, the modern PT is not as bad, but still will react with salt water and the aluminum, you have 2 dissimilar metals and the salt water is the electrolyte. The Aluminum is the Cathode where material reduction will occur (a frickin hole) and the copper is the anode, where white powdery (Oxidation) will occur. Plastic slide caps for bunks don't allow any sitting water and insulate between the board and the boat hull. Don't use carpet on aluminum boats, I suppose you can use cypre$$ bunks.
what bunk slides do you guys recommend
Moderators: Redneck_Randy, badmoonrising, lakerunner
-
FLOUNDERPOUNDER225
- Posts: 314
- Joined: Thu Jul 16, 2015 7:19 am
Re: what bunk slides do you guys recommend
Pensacola FL
2015 Berkshire 231 RFC
Yamaha F-150
2015 Berkshire 231 RFC
Yamaha F-150
-
trevsglide
- Posts: 5
- Joined: Mon Feb 27, 2017 6:56 am
Re: what bunk slides do you guys recommend
[quote="trevsglide"]I am looking at a 25' Berkshire tritoon, I need to mod my boat lift to support, I have a 10,000lb lift which will support the weight but i need to switch out my lift bunks. I am looking to put 3 (4"x12"x16') cedar pressure treated boards. I want to put either plastic covering on the bunks or plastic guides on the bunks to keep the toons off the pressure treated boards. Any advice or thoughts,[/quote].
UPDATE: FYI in case anyone is searching for info, here is what I have learned so far. I now have a Berkshire, STS 25E. the toons are 20'7" (before nose upturn). The spread on them is 37.5" from center of tritoon to center of side toons. My lift is a 10,000lb'er, well capable of the boat, the I-beams on the lift are 8.5' apart. WHAT WILL NOT WORK is 2x6x16 bunk boards mounted on "Y" brackets (6 boards). The boards do not have enough strength once they get about 2 ft, off the supports.
My next move is to mount double aluminum 16' vertical bunks. About double the $ of the previous solution but will last forever. Hopefully if anyone is wondering they can find this as an answer.
UPDATE: FYI in case anyone is searching for info, here is what I have learned so far. I now have a Berkshire, STS 25E. the toons are 20'7" (before nose upturn). The spread on them is 37.5" from center of tritoon to center of side toons. My lift is a 10,000lb'er, well capable of the boat, the I-beams on the lift are 8.5' apart. WHAT WILL NOT WORK is 2x6x16 bunk boards mounted on "Y" brackets (6 boards). The boards do not have enough strength once they get about 2 ft, off the supports.
My next move is to mount double aluminum 16' vertical bunks. About double the $ of the previous solution but will last forever. Hopefully if anyone is wondering they can find this as an answer.
Re: what bunk slides do you guys recommend
[quote="trevsglide"][quote="trevsglide"]I am looking at a 25' Berkshire tritoon, I need to mod my boat lift to support, I have a 10,000lb lift which will support the weight but i need to switch out my lift bunks. I am looking to put 3 (4"x12"x16') cedar pressure treated boards. I want to put either plastic covering on the bunks or plastic guides on the bunks to keep the toons off the pressure treated boards. Any advice or thoughts,[/quote].
UPDATE: FYI in case anyone is searching for info, here is what I have learned so far. I now have a Berkshire, STS 25E. the toons are 20'7" (before nose upturn). The spread on them is 37.5" from center of tritoon to center of side toons. My lift is a 10,000lb'er, well capable of the boat, the I-beams on the lift are 8.5' apart. WHAT WILL NOT WORK is 2x6x16 bunk boards mounted on "Y" brackets (6 boards). The boards do not have enough strength once they get about 2 ft, off the supports.
My next move is to mount double aluminum 16' vertical bunks. About double the $ of the previous solution but will last forever. Hopefully if anyone is wondering they can find this as an answer.[/quote]
A couple of our friends with boat lifts just have 2x8's laid flat side down and bolted to the I beams for all three toons and it has held up well over the last 6 years or so. This setup is common here and done by the installers.
UPDATE: FYI in case anyone is searching for info, here is what I have learned so far. I now have a Berkshire, STS 25E. the toons are 20'7" (before nose upturn). The spread on them is 37.5" from center of tritoon to center of side toons. My lift is a 10,000lb'er, well capable of the boat, the I-beams on the lift are 8.5' apart. WHAT WILL NOT WORK is 2x6x16 bunk boards mounted on "Y" brackets (6 boards). The boards do not have enough strength once they get about 2 ft, off the supports.
My next move is to mount double aluminum 16' vertical bunks. About double the $ of the previous solution but will last forever. Hopefully if anyone is wondering they can find this as an answer.[/quote]
A couple of our friends with boat lifts just have 2x8's laid flat side down and bolted to the I beams for all three toons and it has held up well over the last 6 years or so. This setup is common here and done by the installers.
-
trevsglide
- Posts: 5
- Joined: Mon Feb 27, 2017 6:56 am
Re: what bunk slides do you guys recommend
[quote="mpilot"][quote="trevsglide"][quote="trevsglide"]I am looking at a 25' Berkshire tritoon, I need to mod my boat lift to support, I have a 10,000lb lift which will support the weight but i need to switch out my lift bunks. I am looking to put 3 (4"x12"x16') cedar pressure treated boards. I want to put either plastic covering on the bunks or plastic guides on the bunks to keep the toons off the pressure treated boards. Any advice or thoughts,[/quote].
UPDATE: FYI in case anyone is searching for info, here is what I have learned so far. I now have a Berkshire, STS 25E. the toons are 20'7" (before nose upturn). The spread on them is 37.5" from center of tritoon to center of side toons. My lift is a 10,000lb'er, well capable of the boat, the I-beams on the lift are 8.5' apart. WHAT WILL NOT WORK is 2x6x16 bunk boards mounted on "Y" brackets (6 boards). The boards do not have enough strength once they get about 2 ft, off the supports.
My next move is to mount double aluminum 16' vertical bunks. About double the $ of the previous solution but will last forever. Hopefully if anyone is wondering they can find this as an answer.[/quote]
A couple of our friends with boat lifts just have 2x8's laid flat side down and bolted to the I beams for all three toons and it has held up well over the last 6 years or so. This setup is common here and done by the installers.[/quote]
Update, I found that locally, I am able to get the Aluminum bunks way cheaper than online at BH-usa. Also I am going to use 2 sets of 12' bunks and a center set of 16' aluminum bunks. I could go all 12's but I just wanted a little extra for the center where my motor is mounted. Also can't use flat boards because my Berkshire has "keels" on the bottom of each toon about 1-2 inches high.
I also, set the center set of the Bunks, then mounted the side sets 37.5" off center I set each pair of Aluminum bunks 8 inches apart which allowed the toons to sit nicely in between the bunks without the center keel, hitting them and the side strakes are up off the sides of the bunks by about 3 inches.
UPDATE: FYI in case anyone is searching for info, here is what I have learned so far. I now have a Berkshire, STS 25E. the toons are 20'7" (before nose upturn). The spread on them is 37.5" from center of tritoon to center of side toons. My lift is a 10,000lb'er, well capable of the boat, the I-beams on the lift are 8.5' apart. WHAT WILL NOT WORK is 2x6x16 bunk boards mounted on "Y" brackets (6 boards). The boards do not have enough strength once they get about 2 ft, off the supports.
My next move is to mount double aluminum 16' vertical bunks. About double the $ of the previous solution but will last forever. Hopefully if anyone is wondering they can find this as an answer.[/quote]
A couple of our friends with boat lifts just have 2x8's laid flat side down and bolted to the I beams for all three toons and it has held up well over the last 6 years or so. This setup is common here and done by the installers.[/quote]
Update, I found that locally, I am able to get the Aluminum bunks way cheaper than online at BH-usa. Also I am going to use 2 sets of 12' bunks and a center set of 16' aluminum bunks. I could go all 12's but I just wanted a little extra for the center where my motor is mounted. Also can't use flat boards because my Berkshire has "keels" on the bottom of each toon about 1-2 inches high.
I also, set the center set of the Bunks, then mounted the side sets 37.5" off center I set each pair of Aluminum bunks 8 inches apart which allowed the toons to sit nicely in between the bunks without the center keel, hitting them and the side strakes are up off the sides of the bunks by about 3 inches.