SOLAVERO 10'6" Inflatable Stand Up Paddle Board for Adults Supports 450LB 10'6" / 33" wide / 6" thick / 450 lb max $119.99 View on Amazon
Sizing specs: SOLAVERO 10'6" Inflatable Stand Up... Paddle board size
Paddle board size for someone 5'3"
Quick answerAt 5'3", weight still sets board size: a 180 lb rider needs about 172 litres on a 10'6" x 32 in board. The matching SUP paddle is 71 to 73 inches.
| Weight | Volume | Width | Length | Min. capacity |
|---|---|---|---|---|
| 140 lb | 136 L | 31 in | 10'6" | 220 lb |
| 170 lb | 163 L | 32 in | 10'6" | 260 lb |
| 200 lb | 191 L | 33 in | 11'0" | 300 lb |
| 230 lb | 218 L | 34 in | 11'0" | 350 lb |
| 260 lb | 245 L | 34 in | 11'6" | 390 lb |
Height changes where your centre of gravity sits, not how much the board has to float. At 5'3" height does not change the recommendation: use the row for your weight. Where height matters most is the paddle: at 5'3" an all-round paddle should be 71 to 73 inches, which is 180 to 185 cm.
Boards that fit a 180 lb rider at this height
Filtered on each listing's own stated capacity. Check the listing before buying.
SOLAVERO 10'6" Inflatable Stand Up Paddle Board for Adults Supports 450LB 10'6" / 33" wide / 6" thick / 450 lb max 
SPORIT 11'6" x 35" Extra Wide Inflatable Paddle Board for Adults, 450 lb Capacity Wide Stable Stand Up Paddle Board, 2, 3 Person SUP, Heavy Duty 22 PSI, US Fin, Kayak D Rings, Large Stable Paddleboard 11'6" / 450 lb max / 22 PSI $178.55 View on Amazon
Sizing specs: SPORIT 11'6" x 35" Extra Wide... 
11'6" Extra Wide Inflatable Paddle Board, 450lb Capacity Stable Floating Sanctuary for 2-3 People, Non-Slip Wide Deck SUP for Fishing & Yoga, 15 D-Rings & Dual Bungee for Gear, 3-Fin System 11'6" / 35" wide / 450 lb max / 22 PSI $209.99 View on Amazon
Sizing specs: 11'6" Extra Wide Inflatable Paddle Board 
iTAOSTAR D03EP 34" Extra Wide Paddle Board for Better Balance, Inflatable Stand Up Paddle Board with Kayak Seat, Inflatable Paddle Boards for Beginners of All Skill Levels with Premium SUP Accessories 430 lb max $279.99 View on Amazon
Sizing specs: iTAOSTAR D03EP 34" Extra Wide Paddle... 
Retrospec Weekender XL Inflatable Paddle Board - Lake Essentials SUP with 400lb Capacity - Wide 11' x 35" x 8" All-Around Board for Fishing & Touring - Complete Kit with Paddle, Pump & Backpack 11' / 35" wide / 8" thick / 400 lb max $379.99 View on Amazon
Sizing specs: Retrospec Weekender XL Inflatable... 
Atoll New 12ft Outrider Inflatable Stand Up Paddle Board | Extra Wide ISUP for Adults, Fishing, Touring & All Adventures | Stable 34" Paddle Board with Accessories, Dual Layer PVC, 400lb Capacity 12' / 34" wide / 6" thick / 400 lb max $699.99 View on Amazon
Sizing specs: Atoll New 12ft Outrider Inflatable... Frequently asked questions
What size paddle board for a 5'3" person?
Choose from your weight first. At 180 lb and 5'3", about 172 litres on a 10'6" x 32 in board, rated for 280 lb. Lighter riders can go shorter; heavier riders wider.
What length SUP paddle at 5'3"?
71 to 73 inches (180 to 185 cm) for all-round paddling, which is height plus 8 to 10 inches. Touring adds about 2 inches more; surf takes 4 off.
On the water: Wear a properly fitted, USCG-approved life jacket every time, dress for the water temperature rather than the air, and check your state and local paddling regulations before you launch.
This is researched general information, not professional advice. Sizing figures are starting points: confirm against the maker's own sizing chart and the capacity printed on the boat or board.