Home / Paddleboard size by weight / 300 lb
300 lb · 136 kg · 33 boards checked
Paddleboard size for a 300 lb rider
A three hundred-pound beginner needs about 299–420 litres of board: iRocker's rule gives 299–340 L and Alpkit's 330–420 L, overlapping at 330–340 L. iRocker's chart puts this weight on a board 11'6" to 12'6" long and 32–34 in wide.
- 1Smallest listed board ISLE Pioneer Pro 11'6"
- 2Volume, beginner 299–420 L
- 3Rider 300 lb · 136 kg
- 4iRocker width 32–34 in
Volume for a three hundred-pound paddler
| Rule | How it is worked | Litres |
|---|---|---|
| iRocker | 136 kg × 2.2 to 2.5 | 299–340 L |
| Alpkit, beginner | 300 lb × 1.1 to 1.4 | 330–420 L |
| Alpkit, experienced | 300 lb × 0.9 to 1.1 | 270–330 L |
| iRocker, with 30 lb of gear | kg rule plus 20–30 L | 319–370 L |
| Beginner, both brands | both agree on 330–340 L | 299–420 L |
Rules read for a three hundred-pound (one hundred thirty-six-kilogram) rider: Best size paddle board for beginners (11 Mar 2026); What size SUP do I need? (6 Jul 2025). Last checked 2026-10-20.
Length, width and thickness at three hundred pounds
iRocker's chart puts a three hundred-pound rider in its "Over 200 lb" band (rider height Over 6'0"): a board 11'6" to 12'6" long, 32–34 inches wide and 6 inches thick. Neighbouring weights sit in the same band, so the shape does not change here; the volume does. Alpkit adds that height is secondary: weight matters far more.
Boards that carry three hundred pounds
iRocker's advice is to stay 10 to 15% below a board's stated maximum. Of the 33 boards listed from Red Paddle Co, ISLE and Alpkit, 5 keep a three hundred-pound rider at least 10% under their maximum; the lowest-rated of them is the ISLE Pioneer Pro 11'6". Twenty-two are rated below 300 lb outright.
| Board | Length | Rider max | Load share | Verdict |
|---|---|---|---|---|
| ISLE Grom 2 | 8'6" | 140 lb | 214% | Over the maximum |
| ISLE Classic Surf 9'0" | 9'0" | 185 lb | 162% | Over the maximum |
| ISLE Pioneer Pro 9'6" | 9'6" | 195 lb | 154% | Over the maximum |
| Red Paddle Co 10'2" Ride | 10'2" | 90 kg | 151% | Over the maximum |
| Red Paddle Co 11'0" Sport | 11'0" | 90 kg | 151% | Over the maximum |
| ISLE Classic Surf 9'6" | 9'6" | 200 lb | 150% | Over the maximum |
| ISLE Versa 10'5" | 10'5" | 215 lb | 140% | Over the maximum |
| ISLE Switch Compact | 10'6" | 220 lb | 136% | Over the maximum |
| Red Paddle Co 10'6" Ride | 10'6" | 100 kg | 136% | Over the maximum |
| Alpkit Delta 8'10" | 8'10" | 100 kg | 136% | Over the maximum |
| ISLE Cruiser | 10'6" | 235 lb | 128% | Over the maximum |
| Red Paddle Co 11'3" Sport | 11'3" | 110 kg | 124% | Over the maximum |
| Red Paddle Co 12'6" Sport | 12'6" | 110 kg | 124% | Over the maximum |
| Red Paddle Co 12'0" Voyager | 12'0" | 110 kg | 124% | Over the maximum |
| ISLE Glider | 10'10" | 254 lb | 118% | Over the maximum |
| Red Paddle Co 10'8" Ride | 10'8" | 120 kg | 113% | Over the maximum |
| Red Paddle Co 14'0" Sport | 14'0" | 120 kg | 113% | Over the maximum |
| ISLE Outpost | 10'6" | 265 lb | 113% | Over the maximum |
| ISLE Versa 11'2" | 11'2" | 275 lb | 109% | Over the maximum |
| ISLE Pioneer 3 | 10'6" | 285 lb | 105% | Over the maximum |
| ISLE Voyager | 11'6" | 285 lb | 105% | Over the maximum |
| Alpkit Longshore 10'6" | 10'6" | 135 kg | 101% | Over the maximum |
| ISLE Pioneer Pro 10'6" | 10'6" | 300 lb | 100% | Under max, inside the margin |
| ISLE Explorer 3 | 11'6" | 300 lb | 100% | Under max, inside the margin |
| Red Paddle Co 12'6" Voyager | 12'6" | 150 kg | 91% | Under max, inside the margin |
| Red Paddle Co 14'0" Voyager | 14'0" | 150 kg | 91% | Under max, inside the margin |
| Alpkit Delta 10'10" | 10'10" | 150 kg | 91% | Under max, inside the margin |
| Alpkit Longshore 12'6" | 12'6" | 150 kg+ | 91% | Under max, inside the margin |
| ISLE Pioneer Pro 11'6" | 11'6" | 350 lb | 86% | Inside the 15% margin only |
| ISLE Explorer Pro 12'0" | 12'0" | 350 lb | 86% | Inside the 15% margin only |
| ISLE Explorer Pro 14'0" | 14'0" | 375 lb | 80% | Clear of both margins |
| ISLE Switch 2 | 11'6" | 425 lb | 71% | Clear of both margins |
| ISLE Switch Pro | 11'6" | 475 lb | 63% | Clear of both margins |
Board figures: What size paddle board do I need? 2025 guide (kg); ISLE paddle board size and weight chart (lb, its recommendation for beginner riders); What size SUP do I need? (6 Jul 2025) (kg).
Either side of three hundred pounds
A two hundred eighty-pound beginner reads 279–392 L.
For a three hundred-pound rider these are the brands' published rules and ratings; the board's own maximum is the limit that counts. Wear a leash and a buoyancy aid. See the methodology.
Other gear for a three hundred-pound rider
- Kayak capacity for 300 lb
- Ski size by height
- Snowboard size by weight
- Bike size by height
- Backpack size by trip length
Weights near three hundred pounds
240 lb · 260 lb · 280 lb · all weights
Guide: weight capacity and gear on the water · size every category at once