# Paddles & Oars

A paddle pivots on the paddler's own shoulders; an oar pivots on a fixed point on the boat, so the boat does some of the holding. Blade shape, shaft material and bend decide how much each stroke costs the body, while craft type (kayak, canoe, SUP, rowing shell) and paddling angle decide which of those specs actually matters.

## How it works

A paddle is a shaft with a blade on one or both ends, held entirely by the paddler and never attached to the boat; pulling the submerged blade back pushes the craft forward. A kayak paddle has two blades, often feathered (offset at an angle) so the airborne blade knifes through wind while the other bites water. A canoe paddle has one blade, sometimes on a shaft bent 10 to 15 degrees so the blade stays vertical through the power phase for less effort. An oar instead pivots in a fitting fixed to the boat, turning the rower's pull into a lever stroke: sweep rowers use one long oar two-handed per side, scullers use two shorter oars one-handed each. Blade shape (wide and short versus narrow and long) and shaft material (aluminum, fiberglass, carbon, or wood) trade stroke power against weight and cost.

## How an expert narrows the choice

```mermaid
timeline
  section 1 · Paddle or oar type
    kayak_paddle : ask Kayak paddle length, Kayak blade shape, Feather angle, Kayak shaft bend : skip Canoe shaft bend, Canoe grip type, Canoe blade shape, Canoe paddle length, SUP paddle length (vs. height), SUP blade-to-shaft offset, SUP shaft adjustability, Oar blade shape, Oar shaft material, Sweep or scull
    canoe_paddle : ask Canoe shaft bend, Canoe grip type, Canoe blade shape, Canoe paddle length : skip Kayak paddle length, Kayak blade shape, Feather angle, Kayak shaft bend, SUP paddle length (vs. height), SUP blade-to-shaft offset, SUP shaft adjustability, Oar blade shape, Oar shaft material, Sweep or scull, Paddling angle
    sup_paddle : ask SUP paddle length (vs. height), SUP blade-to-shaft offset, SUP shaft adjustability : skip Kayak paddle length, Kayak blade shape, Feather angle, Kayak shaft bend, Canoe shaft bend, Canoe grip type, Canoe blade shape, Canoe paddle length, Oar blade shape, Oar shaft material, Sweep or scull
    rowing_oar : ask Sweep or scull, Oar blade shape, Oar shaft material : skip Kayak paddle length, Kayak blade shape, Feather angle, Kayak shaft bend, Canoe shaft bend, Canoe grip type, Canoe blade shape, Canoe paddle length, SUP paddle length (vs. height), SUP blade-to-shaft offset, SUP shaft adjustability, Paddling angle, Shaft material, Blade material/construction, Where it's used, Breakdown pieces, Blade surface area
  section 2 · Where it's used
    Calm touring water, whitewater or surf, or racing?
  section 3 · Paddling angle
    Upright and fast, or relaxed and low?
  section 4 · Sweep or scull
    One oar with both hands, or two, one each?
```

1. **Paddle or oar type.** Kayak, canoe, paddleboard, or a rowing shell?
   Each craft uses a different implement with its own blade, length and material spec set; this fork decides which set applies.
   If kayak_paddle: ask Kayak paddle length, Kayak blade shape, Feather angle, Kayak shaft bend; skip Canoe shaft bend, Canoe grip type, Canoe blade shape, Canoe paddle length, SUP paddle length (vs. height), SUP blade-to-shaft offset, SUP shaft adjustability, Oar blade shape, Oar shaft material, Sweep or scull.
   If canoe_paddle: ask Canoe shaft bend, Canoe grip type, Canoe blade shape, Canoe paddle length; skip Kayak paddle length, Kayak blade shape, Feather angle, Kayak shaft bend, SUP paddle length (vs. height), SUP blade-to-shaft offset, SUP shaft adjustability, Oar blade shape, Oar shaft material, Sweep or scull, Paddling angle.
   If sup_paddle: ask SUP paddle length (vs. height), SUP blade-to-shaft offset, SUP shaft adjustability; skip Kayak paddle length, Kayak blade shape, Feather angle, Kayak shaft bend, Canoe shaft bend, Canoe grip type, Canoe blade shape, Canoe paddle length, Oar blade shape, Oar shaft material, Sweep or scull.
   If rowing_oar: ask Sweep or scull, Oar blade shape, Oar shaft material; skip Kayak paddle length, Kayak blade shape, Feather angle, Kayak shaft bend, Canoe shaft bend, Canoe grip type, Canoe blade shape, Canoe paddle length, SUP paddle length (vs. height), SUP blade-to-shaft offset, SUP shaft adjustability, Paddling angle, Shaft material, Blade material/construction, Where it's used, Breakdown pieces, Blade surface area.
   Skip if already known: a query naming kayak, canoe, SUP/paddleboard, or rowing/scull, an earlier answer naming one of these craft types.

2. **Where it's used.** Calm touring water, whitewater or surf, or racing?
   Setting decides blade material and reinforcement: racing wants carbon and length precision, whitewater wants impact-resistant edges, touring wants comfort.
   Skip if already known: an earlier answer naming touring, whitewater, surfing, racing, or casual/recreational use.

3. **Paddling angle.** Upright and fast, or relaxed and low?
   High-angle wants a shorter, wider blade; low-angle wants a longer, narrower one — this sets blade shape and paddle length for kayaks and SUP paddles.
   Skip if already known: an earlier answer naming high-angle, low-angle, racing cadence, or a relaxed/touring stroke.

4. **Sweep or scull.** One oar with both hands, or two, one each?
   Sweep rowers use one long oar two-handed per side; scullers use two shorter oars one-handed each — this decides oar length and blade pairing.
   Skip if already known: an earlier answer naming sweep rowing or sculling, a query already naming a rowing shell type (single, pair, four, eight).

## What to surface

### Paddle or oar type

Which kind of implement this is: a double- or single-bladed kayak/canoe/SUP paddle held free in the hands, or a rowing oar pivoting in a boat-mounted fitting. This decides everything else: a kayak paddle's feather and blade shape, a canoe paddle's bent-shaft angle and grip, an SUP paddle's length-to-height offset, and an oar's sweep-or-scull length and blade all come from a different spec sheet. Asking this first avoids asking about feathering on an oar or bent-shaft angle on a paddleboard. [1] [2]

Values: kayak_paddle, canoe_paddle, sup_paddle, rowing_oar.
Question to ask: Kayak, canoe, paddleboard, or a rowing shell?

Used as: top-level split, filter. Data: derived from listing fields, backfill cost low. Look for it as: Derive from the product title and category breadcrumb ('kayak paddle', 'canoe paddle', 'SUP paddle', 'oar' or 'scull').
Title keyword match covers nearly every listing; 'oar' or 'scull' in the title flags rowing_oar.

### Where it's used

The water and activity the paddle or oar is mainly built for: calm touring/flatwater, whitewater or surf, racing, or casual recreational use. Setting drives the material tier and reinforcement a buyer actually needs: racing wants a stiff, light carbon blade; whitewater wants an impact-resistant edge guard; touring wants all-day comfort over outright speed; casual use wants durability at a low price. [10] [7]

Values: flatwater_touring, whitewater_or_surf, racing, recreational_casual.
Question to ask: Calm touring water, whitewater or surf, or racing?

Used as: top-level split, filter. Data: needs research, backfill cost low. Look for it as: Usually implied by the product's marketed category ('touring paddle', 'whitewater paddle', 'racing paddle') rather than a stated field.
Keyword-match title and category name against the four values; default unmarked paddles to recreational_casual.

### Sweep or scull

Whether the oar is a sweep oar, held in both hands as the rower's only oar on one side, or one of a pair of sculls, held one in each hand. Sweep oars are the longer of the two, since one oar covers one side of the boat with both hands; sculls are shorter and come in pairs, since each hand works its own oar. Buying the wrong one leaves a rower an oar that cannot be rigged to their boat. [3]

Values: sweep, scull.
Question to ask: One oar with both hands, or two, one each?

Used as: top-level split, filter. Data: on the listing, backfill cost low. Look for it as: Almost always in the title or description ('sweep oar' vs 'scull' or 'pair of sculls').
Title keyword match; sculls are also almost always sold or listed in pairs.

### Paddling angle

Whether the paddler holds the shaft near-vertical for a fast, upright (high-angle) stroke, or near-horizontal for a relaxed (low-angle) stroke. High-angle paddlers want a shorter, wider blade and a shorter overall paddle; low-angle paddlers want a longer, narrower blade for an efficient relaxed cruise. Picking the wrong style for a buyer's stroke means fatigue or a mismatched blade size. [6] [10] [12]

Values: high_angle, low_angle.
Question to ask: Upright and fast, or relaxed and low?

Used as: top-level split, filter. Data: needs research, backfill cost medium. Look for it as: Rarely a listing field; inferred from the blade dimensions a listing does give (short+wide implies high-angle, long+narrow implies low-angle).
Needs blade length/width from the listing or spec sheet; default to low_angle, the more common recreational/touring style, when unknown.
Chart: position on a stroke-angle axis, from vertical/high-angle to horizontal/low-angle.

### Shaft material

What the paddle's shaft is made of: aluminum, fiberglass, carbon fiber, wood, or plastic, across kayak, canoe, and SUP paddles. Material is the single biggest driver of swing weight and price: aluminum is heaviest and cheapest, fiberglass a mid-weight compromise, carbon fiber lightest and stiffest at the highest price, and wood traditional, warm-handed, and more flexible. Lighter shafts mean less joint fatigue over a full day. [6] [10] [1]

Values: aluminum, fiberglass, carbon_fiber, wood, plastic.
Question to ask: Aluminum, fiberglass, carbon fiber, or wood shaft?

Used as: filter, sortable. Data: on the listing, backfill cost low. Look for it as: Almost always in the title or material spec field.
Title keyword match; default to aluminum for unlabeled budget paddles, since it is the cheapest and most common unstated material.
Chart: position on a weight/price axis, carbon lightest, aluminum heaviest.

### Canoe shaft bend

Whether the canoe paddle's shaft is straight, or bent roughly 10 to 15 degrees near the blade so the blade stays vertical through the power phase of the stroke. A bent shaft is more efficient for sustained forward power on flatwater and racing, at the cost of only working well on one side of the canoe; a straight shaft is the all-around, either-side choice preferred for maneuvering, whitewater, and solo paddling. [1] [8] [13]

Values: straight, bent_10_to_15_degrees.
Question to ask: Straight canoe shaft, or bent for efficiency?

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually in the title ('bent shaft canoe paddle' vs 'straight shaft canoe paddle').
Title keyword match; default to straight when unstated, since it is the more versatile, commonly stocked option.

### Kayak paddle length

How long the kayak paddle is overall, bucketed as short (built for a shorter, high-angle stroke or a narrow boat), mid, or long (for a low-angle stroke or a wide boat). Too short bangs knuckles on the hull and leans the stroke; too long adds swing weight and shoulder strain. The right bucket depends on the paddler's height, the kayak's width, and their angle style together, not any one of those alone. [6] [10] [12]

Values: short_high_angle_or_narrow_boat, mid_general_purpose, long_low_angle_or_wide_boat.

Used as: filter, shown on the card. Data: needs research, backfill cost low. Look for it as: The listing usually gives a straight cm number (e.g. '220cm'); bucket roughly under 220cm as short, 220-240cm as mid, over 240cm as long.
Parse the cm figure from the title or spec table and bucket it; if absent, infer from the paddle's marketed category (whitewater/racing skew short, touring/recreational skew long).
Chart: position on a length axis from short to long.

### Kayak blade shape

The blade's shape and purpose: a standard asymmetric European-style touring/whitewater blade, a spoon-shaped wing blade built for racing, or a narrow traditional Greenland-style blade. A wing blade generates lift like a hydrofoil for extra racing thrust but takes technique to control; a Greenland blade is narrow and light for an efficient low-angle cruise over distance; the common European blade is the all-around, easiest-to-learn choice. [1] [4]

Values: european_asymmetric, wing_racing, greenland_traditional.

Used as: filter, shown on the card. Data: needs research, backfill cost low. Look for it as: Usually named in the title ('wing paddle', 'Greenland paddle'); absence of either name means the common European shape.
Title keyword match for 'wing' or 'Greenland'; default to european_asymmetric otherwise.
Chart: icon/shape swatch of the blade outline.

### Kayak shaft bend

Whether the kayak paddle's shaft is straight, or 'cranked'/bent near the grips to reduce wrist strain while keeping the blades in line. A bent or cranked shaft can ease wrist and joint strain on long days, at a weight and price premium over a straight shaft; straight shafts are simpler, lighter, cheaper, and the default most paddlers learn on. [1] [6]

Values: straight, bent_or_cranked.
Question to ask: Straight shaft, or a bent/cranked one?

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually in the title ('bent shaft', 'neutral bent', 'crank shaft kayak paddle').
Title keyword match; default to straight when the title says nothing, since it is the more common and cheaper option.

### Blade material/construction

What the blade itself is built from and how: injection-molded plastic or nylon, fiberglass-reinforced nylon, full fiberglass, or carbon fiber, sometimes with a dihedral power-face shape or an abrasion-resistant edge guard. Blade construction trades stiffness, weight, and durability against price: a stiffer blade transfers more of each stroke into thrust instead of flexing it away, a dihedral shape reduces flutter for a looser grip, and an edge guard matters for anyone hitting rocks or gravel. [7] [9]

Values: injection_molded_plastic_or_nylon, fiberglass_reinforced_nylon, fiberglass, carbon_fiber.

Used as: filter, sortable. Data: needs research, backfill cost medium. Look for it as: Sometimes in the title ('carbon blade', 'fiberglass reinforced'); otherwise only on the brand's own spec sheet.
Title keyword match where present; otherwise infer from the paddle's price tier and marketed performance level (budget/recreational skews plastic/nylon, premium skews carbon).
Chart: position on a stiffness/weight/price axis.

### Canoe grip type

The shape of the top handle: a rounded palm grip for all-around comfort, or a perpendicular T-grip for extra leverage when prying and rotating. A T-grip gives a whitewater or technical paddler more control for prying and bracing moves; a palm grip is more comfortable for long, straightforward flatwater days and is the far more common default. [8] [13]

Values: palm_grip, t_grip.
Question to ask: Rounded palm grip, or a T-grip for control?

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually in the title or product description ('T-grip canoe paddle').
Title keyword match; default to palm_grip when unstated, since it is by far the more common grip.

### Canoe paddle length

How long the canoe paddle is overall, sized to the paddler's torso and seating position. Too long forces an awkward reach or hits the gunwale; too short means leaning into every stroke. Fit is measured against the paddler's own torso and seat height, not a single universal number, so the same paddler can need a different length in a tandem versus a solo canoe. [8] [13]

Range: 50 to 62 in. Most adults land around 54 to 58in on a straight shaft, measured from seat to about nose height; bent shafts run a touch shorter.

Used as: filter, sortable. Data: needs research, backfill cost low. Look for it as: Usually a straight inch number on the listing (e.g. '54in canoe paddle').
Parse the inch figure directly from the title or spec table; it needs no further mapping.
Chart: position on a length axis.

### SUP paddle length (vs. height)

How much longer the SUP paddle is than the paddler's own height, since SUP paddles are sized as an offset above height rather than an absolute length. Too tall an offset forces a hunched, inefficient reach; too short wastes the paddler's own reach and power. The right offset depends on discipline as much as height: racers run shorter for a quicker stroke, flatwater paddlers run longer for reach and glide. [5] [11]

Range: 4 to 15 in. Add about 8-10in to height for flatwater/recreational paddling, 6-8in for surfing, and 4-6in for racing.

Used as: filter, sortable. Data: needs research, backfill cost medium. Look for it as: SUP paddles are usually listed by an adjustable range in inches/cm, or as a fixed length; the buyer's height is never on the listing.
If fixed-length, compare the listed length against typical adult heights to estimate the discipline it best fits; adjustable paddles cover most buyers regardless.
Chart: position on a height-offset axis by discipline.

### SUP shaft adjustability

Whether the SUP paddle's length is fixed, or adjustable/telescoping over a set range so one paddle fits several paddlers or boards. An adjustable shaft lets a household or rental fleet share one paddle across different heights and board thicknesses, at a small weight and stiffness cost versus a fixed-length shaft, which is lighter and stiffer for a single paddler who already knows their ideal length. [9] [11]

Values: fixed_length, adjustable_telescoping.
Question to ask: A fixed-length paddle, or adjustable for sharing?

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually in the title ('adjustable SUP paddle', 'LeverLock') or given as a length range instead of one number.
A length range on the listing (e.g. '68-78in') means adjustable; a single number means fixed.

### Oar blade shape

The rowing oar's blade shape: the modern asymmetric 'cleaver' or 'hatchet' shape, the older symmetric 'Macon' shape, or the oldest, narrower 'square' shape. Cleaver blades pack more surface area for the same or shorter oar length and are faster, and have replaced Macon blades almost everywhere in competitive rowing since the early 1990s; some clubs still buy Macons for novice crews because the symmetric shape is simpler to learn to feather and square. [3] [14]

Values: cleaver_hatchet, macon_spoon, square_traditional.

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually named directly in the product title ('cleaver blade', 'hatchet', 'Macon').
Title keyword match; default to cleaver_hatchet for unlabeled modern racing oars, since it is now the dominant shape.
Chart: icon/shape swatch of the blade outline.

### Oar shaft material

What the oar's shaft (loom) and blade are built from: traditional wood, or modern carbon fibre composite. The move from wood to carbon fibre composite cut competitive oar weight dramatically and is now standard in racing; wood remains common on recreational, dinghy, and trophy oars where light weight matters less than tradition or cost. [2] [14]

Values: wood_traditional, carbon_fiber_composite.
Question to ask: Traditional wood oar, or modern carbon fibre?

Used as: filter, sortable. Data: on the listing, backfill cost low. Look for it as: Almost always in the title or material spec ('carbon fibre racing oar', 'wooden oar').
Title keyword match; default to wood for unlabeled recreational/dinghy oars, carbon_fiber_composite for unlabeled racing shell oars/sculls.
Chart: position on a weight axis, carbon lightest.

### Breakdown pieces

How many sections the paddle breaks down into for storage and travel: a one-piece shaft, a standard 2-piece take-apart, or a 3- or 4-piece travel paddle that packs small enough for a suitcase. More pieces trade stiffness and weight for packability: a one-piece shaft flexes and weighs the least, while 3- or 4-piece travel paddles pack down for a flight at the cost of extra ferrule joints adding weight and a touch of flex. [6] [8]

Values: one_piece, two_piece, three_or_four_piece_travel.
Question to ask: One piece, two-piece, or a travel breakdown paddle?

Used as: filter, sortable. Data: on the listing, backfill cost low. Look for it as: Stated directly in the title or spec table as '1-Piece', '2-Piece', '3-Piece Adjustable-Length Travel', or '4-Piece'.
Title/spec keyword match on the piece count; default to two_piece, the most common take-apart format, when unstated.

### Feather angle

The rotational offset between a kayak paddle's two blades: unfeathered (0 degrees, same plane), a fixed feathered angle (commonly 30-45 degrees, sometimes up to 90), or an adjustable ferrule that can be set to several angles. Feathering turns the airborne blade edge-on to the wind, saving wrist strain and effort in a headwind, at the cost of a slightly more complex stroke; unfeathered is simpler to learn but catches more wind. An adjustable ferrule lets one paddle serve either preference. [1] [6] [10]

Values: unfeathered_0, feathered_fixed_30_to_45, feathered_fixed_60_to_90, adjustable_ferrule.
Question to ask: Blades feathered (offset), or flat/unfeathered?

Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Often stated as a degree value or as 'adjustable feather' / 'Posi-Lok' / 'Smart-View' ferrule naming on the listing.
Keyword/degree match on the listing; most modern 2-piece kayak paddles default to adjustable_ferrule when the ferrule brand name is present.
Chart: rotational offset shown as two blade icons at their relative angle.

### Canoe blade shape

The blade's outline: a long, narrow 'beavertail' shape for quiet, controlled strokes in deep water, a wider, shorter 'square' or standard shape for shallow or whitewater use, or an all-around teardrop blend of the two. A beavertail blade is annoying and breakage-prone in shallow water but smooth and quiet in deep lakes; a wider, shorter blade bites more in shallow rivers and whitewater but adds more resistance per stroke; most all-around paddles split the difference with a teardrop shape. [13]

Values: beavertail_narrow, square_or_standard_wide, all_around_teardrop.

Used as: filter, shown on the card. Data: needs research, backfill cost medium. Look for it as: Rarely named directly on a listing; sometimes implied by a model name or 'beavertail' in the title.
Title keyword match for 'beavertail'; otherwise default to all_around_teardrop, the most commonly sold shape.
Chart: icon/shape swatch of the blade outline.

### SUP blade-to-shaft offset

The angle between the SUP blade and the shaft, roughly 7 degrees for surf/whitewater bracing, 10 degrees for all-around use, or 12 degrees for racing. A steeper offset keeps the blade more vertical through the power phase for faster, more efficient forward paddling, which racers want; a shallower offset flattens the blade's contact with the water for more stable bracing strokes, which surf and whitewater paddlers want. [9]

Values: low_offset_bracing_7deg, mid_offset_allaround_10deg, high_offset_racing_12deg.

Used as: filter, shown on the card. Data: needs research, backfill cost medium. Look for it as: Rarely stated on a retail listing; mostly found on the brand's own spec sheet or inferred from the paddle's marketed use (race/all-around/surf).
Infer from the paddle's marketed category when the degree figure is absent; default to mid_offset_allaround_10deg.
Chart: angle of the blade icon against the shaft line.

### Blade surface area

The blade's total surface area in square inches; across Werner's own kayak, canoe, and SUP lines it runs about 76 to 138in2. Blade area is a direct power-versus-fatigue trade: a bigger blade catches more water per stroke for stronger acceleration, which whitewater and sprint paddlers want, while a smaller blade turns over faster for a lighter, more sustainable cadence on long touring days. [7] [9]

Range: 76 to 138 in2. Werner's own kayak, canoe, and SUP blades span 76 to 138in2; most recreational and touring blades cluster in the 85-110in2 band.

Used as: filter, sortable. Data: needs research, backfill cost medium. Look for it as: Rarely stated on a retail listing; given in in2/cm2 only on the brand's own comparison or spec page for a specific model.
Look up the exact model on the brand's spec page when possible; otherwise infer coarsely from craft_type and blade_material_tier (whitewater/canoe blades skew larger, high-angle racing blades skew smaller) rather than assuming a number.
Chart: position on a blade-area axis from 76 to 138in2.

## What you give up

- High-angle paddling with a short, wide blade suits racers and whitewater paddlers who want power now; low-angle paddling with a long, narrow blade suits touring paddlers who want comfort over a full day. [6] [10] Board branch: "Faster and more powerful, more shoulder fatigue".
- A bent shaft keeps the blade vertical for an efficient forward stroke but works best paddled on one side, while a straight shaft is the all-around choice for maneuvering, bracing, and switching sides. [13] [8] Board branch: "More forward efficiency, less all-around versatility".
- Cleaver blades are faster and now used almost universally in competitive rowing, but some coaches still start novices on the simpler, symmetric Macon blade before moving them up. [3] [14] Board branch: "Faster, but a harder blade to learn on".

## Words you will meet

- **Feathering**. Twisting a kayak paddle's two blades to different angles so the airborne blade cuts through wind instead of catching it.
- **Ferrule**. The joint connecting the two halves of a take-apart paddle shaft, which may also let the blades rotate to a new feather angle.
- **High-angle paddling**. A fast, upright stroke with the shaft near-vertical, paired with a shorter, wider blade.
- **Low-angle paddling**. A relaxed, horizontal stroke with the shaft close to flat, paired with a longer, narrower blade.
- **Dihedral**. A ridged, 3D power-face shape on a blade that keeps water flowing off evenly so the paddle does not flutter.
- **Bent shaft**. A canoe shaft angled near the blade so the blade stays vertical, and efficient, through the power part of the stroke.
- **T-grip**. A perpendicular handle a paddler wraps a thumb around to pry and rotate the canoe, used mainly on whitewater canoe paddles.
- **Beavertail blade**. A long, narrow, traditional canoe blade shape suited to deep water and quiet, controlled strokes.
- **Sweep rowing**. Rowing with one long oar held in both hands, one oar per rower on alternating sides of the boat.
- **Sculling (rowing)**. Rowing with a pair of shorter oars, one in each hand, rather than one long oar with both hands.
- **Cleaver blade (hatchet)**. An asymmetric rowing oar blade shape, now used almost universally, that largely replaced the older symmetric Macon blade.
- **Macon blade**. An older, symmetric, elliptical rowing oar blade, now mostly kept for teaching novice technique.
- **Wing paddle**. A spoon-shaped racing kayak blade that generates lift like a wing, adding thrust beyond plain drag.
- **Greenland paddle**. A traditional, narrow-bladed kayak paddle style, roughly 210cm long, used with a low-angle stroke.
- **Shoulder (of a blade)**. The point where a paddle's blade meets the shaft, used as a reference mark when measuring paddle length against your body.
- **Swing weight**. How heavy a paddle feels in motion through the stroke, not just on a scale; shaft material and length both drive it more than total weight alone.
- **Cranked shaft (kayak)**. A kayak shaft bent near the grips, also called a bent shaft, to ease wrist strain while keeping both blades in line.

## Where we made a call

- Bent-shaft canoe paddles use roughly a 10 to 15 degree blade offset, with brands differing on an 'industry standard' angle. (confidence medium). Sources disagree. Werner states 10°, Bending Branches builds 11°, Wikipedia says 12-15°; we give the wider range since brands clearly differ. [8] [13] [1]
- Kayak paddle length buckets are single-sourced to Werner's own published cm ranges, not an independent cross-brand number. (confidence medium). Aqua Bound and Bending Branches confirm the same height/width/angle factors in fetched text but publish their own charts as images, not as numbers we could read. [6] [10] [12]
- SUP blade-to-shaft offset angles (7/10/12 degrees) are single-sourced to Werner's own spec page, not confirmed by an independent brand. (confidence medium). Aqua Bound's SUP sizing guide covers length offset by discipline but states no degree figures, so Werner's angle numbers stand alone. [9] [11]

## References

1. [Paddle](https://en.wikipedia.org/wiki/Paddle) (primer). Supports: Kayak paddles are feathered (offset) or unfeathered; some snap between settings; Bent-shaft canoe paddles angle the blade 12 to 15 degrees from the shaft; Wing-shaped racing paddles act like a hydrofoil, pulling the paddle forward-outward.
2. [Oar](https://en.wikipedia.org/wiki/Oar) (primer). Supports: An oar pivots in a boat-mounted fitting; a paddle is held free in the paddler's hands; Modern competitive oars are carbon fibre; classic oars were wood.
3. [Oar (sport rowing)](https://en.wikipedia.org/wiki/Oar_(sport_rowing)) (primer). Supports: Sweep rowing uses one oar per rower with both hands; sculling uses two, one per hand; Cleaver (hatchet) blades are asymmetric and now used almost universally, replacing the Macon blade; Macon blades are used mainly to teach novice technique; cleavers are faster.
4. [Kayak](https://en.wikipedia.org/wiki/Kayak) (primer). Supports: A traditional Greenland kayak paddle is about 210cm, narrower-bladed than a European paddle.
5. [Standup paddleboarding](https://en.wikipedia.org/wiki/Standup_paddleboarding) (primer). Supports: An SUP paddle should be 8 to 15 inches taller than the paddler's own height; SUP paddle blades sit at an angle to the shaft to add power on the pull.
6. [Werner Paddles — Touring Design & Fit](https://www.wernerpaddles.com/pages/touring-design-fit) (spec sheet). Supports: High-angle blades are shorter and wider; best lengths run 205 to 215cm; Adjustable touring shafts span 200-220, 220-240, or 240-260cm ranges; Feather angle adjusts in 15-degree increments on the Smart-View ferrule; Low-angle blades are longer and narrower for a relaxed, horizontal stroke; Comparison tool lists a Pieces field (1 to 4-piece, including travel versions) on every paddle.
7. [Werner Paddles — Whitewater Design & Fit](https://www.wernerpaddles.com/pages/whitewater-design-fit) (spec sheet). Supports: Whitewater blades add a Dynel edge guard for abrasion and impact resistance; Ultimate-tier whitewater blades blend fiberglass, carbon and Kevlar for strength and light weight; Comparison tool lists Blade Surface Area in in2/cm2 (76-138in2) on every paddle line.
8. [Werner Paddles — Canoe & Raft Design & Fit](https://www.wernerpaddles.com/pages/canoe-raft-design-fit) (spec sheet). Supports: Werner's canoe touring blades use a 10-degree blade-to-shaft offset, called the industry standard; Adjustable canoe shafts run 50-58in for touring, 54-62in for whitewater; Canoe palm grips use an ergonomic shape to keep the grip loose; Comparison tool lists the same Pieces field (1 to 4-piece) on every canoe paddle line.
9. [Werner Paddles — Stand Up Paddle Design & Fit](https://www.wernerpaddles.com/pages/stand-up-paddle-design-fit) (spec sheet). Supports: Blade dihedral (a 3D power-face shape) reduces flutter and lets paddlers use a looser grip; SUP race blades use a steeper 12-degree offset; all-around 10; surf/whitewater 7; LeverLock adjustable SUP shafts offer up to 16 inches of length adjustment; Comparison tool lists Blade Surface Area in in2/cm2 (76-138in2) on every SUP paddle line.
10. [Aqua Bound — Kayak Paddle Sizing Guide](https://www.aquabound.com/pages/kayak-paddle-sizing-guide) (spec sheet). Supports: Kayak paddle length depends on paddler height and the kayak's width at its widest point; High-angle paddlers use a shorter shaft and wider blade; low-angle paddlers use a longer, narrower one; A ferrule that can feather offsets the two blades to ease wrist strain.
11. [Aqua Bound — SUP Paddle Sizing Guide](https://www.aquabound.com/pages/sup-paddle-sizing-guide) (spec sheet). Supports: Add 8-10in to height for flatwater, 6-8in for surfing, 4-6in for racing SUP paddles.
12. [Bending Branches — Kayak Paddle Sizing Guide](https://www.bendingbranches.com/blogs/resources/kayak-paddle-sizing-guide) (spec sheet). Supports: High-angle paddling is aggressive and calls for a shorter paddle; low-angle calls for a longer one.
13. [Bending Branches — Canoe Paddle Sizing Guide](https://www.bendingbranches.com/blogs/resources/canoe-paddle-sizing-guide) (spec sheet). Supports: Bending Branches builds its bent-shaft canoe paddles with an 11-degree bend; Straight shafts suit maneuvering and all-around paddling; bent shafts suit flatwater efficiency; A T-grip gives leverage to pry and rotate; a palm grip is more comfortable overall; Beavertail blades are long and narrow, best for deep water, not shallow rivers; A 32-inch torso suits roughly a 58-inch straight-shaft canoe paddle on average.
14. [Concept2 — Racing Oars / Oar Innovation Timeline](https://www.concept2.com/oars/oar-options) (spec sheet). Supports: Concept2's asymmetric hatchet/cleaver blade, from 1991, is faster than the older symmetric Macon design; Modern racing oars and sculls are built from carbon fibre composite, not wood.