choosing the correct oar

The right oar length depends on the distance between your rowlocks, the height of the rowlocks above the water, and how much overlap you want between the handles. Blade shape and the way you row matter too. Use a sizing formula as a starting point, then check that the oars suit your boat and rowing position.

Choosing oar length

The Shaw & Tenney oar sizing guide gives a useful starting length and explains the measurements. Its formula uses inches and aims for an inboard-to-outboard leverage ratio of 7:18.

Illustration of measurements used to calculate oar length — Oar sizing diagram from the original page. Check the measurements against your boat.

The result is a guide rather than a fixed requirement. The boat’s beam at the rowlocks, freeboard, rowing position, the rower’s reach, and preferred handle overlap can all change the best length. If you already have oars, try them on the boat and note where the handles meet and how deeply the blades enter the water.

Choosing a blade

Flat and spoon blades are two common choices. The hull, oar length and rowing style affect how each feels on the water.

Building your own oars

Chesapeake Light Craft also offers plans and patterns for making wooden oars. If you would like advice on oar length, blade shape or a suitable set for your boat, get in touch.