I think the rating is 540 pounds. Based on my experience if you put that much weight in the float it will be just barely out of the water. I would plan on 1/2 of the weight limit or less.
Jdog, the list you are requesting would vary considerably depending on configuration and how you are securing the dock. One piece of advise, the buoyancy rating for these floats appears high to me. I would say the actual rating is 1/2 of what is listed. I think the maximum number listed would be to keep the float just above water with the amount of weight listed. I purchased two of the floats and built a 4' x 9'' wood frame to keep them in place. Then put a 200 pound dinghy on top and it sat in the water a lot lower than I anticipated. I calculated the frame and dinghy to weigh in at about 400 pounds. These floats have a 540 pound rating. I used two which should equal 1080 pounds of capacity. When you calculate how much your dock will weigh and what you will be putting on the dock, plan on 50% of the float capacity or maybe less depending how high you want the dock out of the water.
Hi Marc, the float you are inquiring about is out of stock right now and won't be available until beginning of July. So when available, 24" x 48" x 16" then you'll need 10. Hope this answers your question. The Multinautic Team
Hi Clyde, If I understand correctly, your dock is basically going to be an 8' x 10' dock correct? If so, see the little chart, it tells you the number of floats needed depending on the size of the float. Model R- xxx Qty Item # Dimension Freeboard 200 10 Units 14003 - 14004 24" x 36" x 8" ± 13" 370 6 Units 14007 - 14008 24" x 60" x 8" ± 13" 450 5 Units 14013 - 14014 - 14029 24" x 48" x 12" ± 17" 600 3 Units 14030 24" x 48" x 16" ± 20" 750 2 Units 14009 - 14010 24" x 60" x 16" ± 20" Hope this answers your question, Multinautic Team
Hello, You need 2496 pounds of floatability. So we would suggest 6 floats of 450 lbs (for a medium freeboard). Thank you!
I built a 4x9 float for a small dinghy to keep it out of the water. So very similar to your size and I purchased 2 of the floats. I found the 4' wide to be very unstable in the water when standing on it or pulling the dinghy up on. If you have the room consider 6x10 or 8x10 and you will have a more stable platform. I am considering building a second 4x9 and bolting them together. Wish I had built an 8x8 to start with.
Hi, for the first Dock: 6' x 12' you'll need 3 floats for the 8' x 12' you'll need 4 The Multinautic Team
No, they do not need to be removed from the lakes before freezing.
The sizes are fairly precise but as with all types of materials, allowances must be made for shrinkage and changing of exact dimensions due to temperature and other conditions. Length on top is 48" while bottom is 47.09". Width on top 24" and the base is 23.04". The height of the float is 16". Thanks for asking.