The catalog range runs head-high to double-overhead+, with a moderate power midpoint, and a intermediate to advanced skill window.
If you weigh this much
Everyday means an intermediate surfer. Newer to hardboards gets more liters. Advanced gets fewer. A cell names a stock size only when that size is close to the starting volume. Otherwise it names the liters and stops.
| If you weigh | Newer to hardboards | Everyday | Advanced |
|---|---|---|---|
| 120 lb | 6'1" · 33.36L | 5'7" · 24.57L | 5'6" · 21.49L |
| 130 lb | 6'2" · 35.04L | 5'11" · 27L | 5'8" · 23.31L |
| 140 lb | 6'4" · 38.59L | 6'1" · 29.6L | 5'10" · 25.75L |
| 150 lb | 6'4" · 38.59L | 6'2" · 30.96L | 5'9" · 27.34L |
| 160 lb | chart tops out at 38.59L — less foam than 43.5L | 6'1" · 33.36L | 5'10" · 28.82L |
| 170 lb | chart tops out at 38.59L — less foam than 46.3L | 6'2" · 35.04L | 6'2" · 30.96L |
| 180 lb | chart tops out at 38.59L — less foam than 49L | 6'4" · 38.59L | 6'1" · 33.36L |
| 190 lb | chart tops out at 38.59L — less foam than 51.7L | 6'4" · 38.59L | 6'2" · 35.04L |
| 200 lb | chart tops out at 38.59L — less foam than 54.4L | 6'4" · 38.59L | 6'3" · 36.11L |
| 210 lb | chart tops out at 38.59L — less foam than 57.2L | chart tops out at 38.59L — less foam than 43.8L | 6'4" · 38.59L |
| 220 lb | chart tops out at 38.59L — less foam than 59.9L | chart tops out at 38.59L — less foam than 45.9L | 6'4" · 38.59L |
Common questions
What size Christenson OP4 should I ride if I weigh 140 pounds?
If you weigh 140 lb and surf at an everyday intermediate level, start near 29.2 liters. The closest Christenson OP4 stock size is 6'1" at 29.6 liters.
What size Christenson OP4 should I ride if I weigh 150 pounds?
If you weigh 150 lb and surf at an everyday intermediate level, start near 31.3 liters. The closest Christenson OP4 stock size is 6'2" at 30.96 liters.
What size Christenson OP4 should I ride if I weigh 160 pounds?
If you weigh 160 lb and surf at an everyday intermediate level, start near 33.4 liters. The closest Christenson OP4 stock size is 6'1" at 33.36 liters.
What size Christenson OP4 should I ride if I weigh 170 pounds?
If you weigh 170 lb and surf at an everyday intermediate level, start near 35.5 liters. The closest Christenson OP4 stock size is 6'2" at 35.04 liters.
What size Christenson OP4 should I ride if I weigh 180 pounds?
If you weigh 180 lb and surf at an everyday intermediate level, start near 37.6 liters. The closest Christenson OP4 stock size is 6'4" at 38.59 liters.
What size Christenson OP4 should I ride if I weigh 190 pounds?
If you weigh 190 lb and surf at an everyday intermediate level, start near 39.6 liters. The closest Christenson OP4 stock size is 6'4" at 38.59 liters.
What size Christenson OP4 should I ride if I weigh 200 pounds?
If you weigh 200 lb and surf at an everyday intermediate level, start near 41.7 liters. The closest Christenson OP4 stock size is 6'4" at 38.59 liters.
Stock chart
Length, width, thickness, and volume as published for Christenson OP4 in the Quivr catalog. Nothing here is estimated.
| Length | Width | Thickness | Volume |
|---|---|---|---|
| 5'6" | 18" | 2.13" | 21.49L |
| 5'6" | 18.5" | 2.25" | 23.2L |
| 5'7" | 18.25" | 2.13" | 22.2L |
| 5'7" | 18.75" | 2.31" | 24.57L |
| 5'8" | 18.38" | 2.19" | 23.31L |
| 5'8" | 19" | 2.38" | 25.96L |
| 5'9" | 18.5" | 2.25" | 24.52L |
| 5'9" | 19.25" | 2.44" | 27.34L |
| 5'10" | 18.63" | 2.31" | 25.75L |
| 5'10" | 19.5" | 2.5" | 28.82L |
| 5'11" | 18.75" | 2.38" | 27L |
| 5'11" | 19.75" | 2.56" | 30.12L |
| 6'0" | 18.88" | 2.44" | 28.28L |
| 6'0" | 20" | 2.63" | 31.78L |
| 6'1" | 19" | 2.5" | 29.6L |
| 6'1" | 20.25" | 2.69" | 33.36L |
| 6'2" | 19.13" | 2.56" | 30.96L |
| 6'2" | 20.5" | 2.75" | 35.04L |
| 6'3" | 20.75" | 2.75" | 36.11L |
| 6'4" | 21" | 2.88" | 38.59L |
A shop chart that says “up to this weight” can point at a smaller size than the closest liter match. Their band is wide. This page picks the row nearest the starting volume. Fitness, and whether the waves are soft or punchy, still move it a size.
More on the number itself: what surfboard volume means. All weights: what size to ride for your weight.