How long should my mooring lines be?

For mooring lines we advise to take one-and-a-half times the boat length. Of course, this also depends on your personal preference. Often you would have at least two mooring lines of one-and-a-half times the boat length and two mooring lines of one boat length on board.

How long is the average dock line?


Dock Line Diameter Typical Boat Lengths
3/8” (10 mm) Up to 20 ft
1/2” (13 mm) 20 ft – 32 ft
5/8” (16 mm) 33 ft – 48 ft
3/4” (19 mm) 49 ft – 65 ft

How much slack is on a dock line?

A quick application of Pythagoras, a 5-foot tide, and a typical boat suggests that 12″ of slack in bow/stern lines and 7″ in the springs would have them just snug at high tide. Of course, the tidal range estimate needs to be conservative and based on local knowledge of wind, harbor, and lunar effects.

How long should a mainsheet be?

between 42 and 46 feet
The ideal length seems to be between 42 and 46 feet. The thickness of your mainsheet will affect both the grip you can have on it and the amount of friction as it goes through the blocks (a thicker line will have more friction).

What size are mooring lines?

Your dock line should have 1/8″ of diameter for every 9′ of boat with a minimum size of 3/8″. This means a 20′ boat should use 3/8″ lines. A 40′ boat should use 5/8″ line.

How long should my dock be?

According to the experts, you should have a dock line that is 1/8-inch in diameter for every 9 feet of your boat’s length, with a minimum of 3/8-inch diameter. If you have a 20-foot boat, you should use lines that are 3/8-inches, whereas a 40-foot boat would need a 5/8-inch line.

How long should a spinnaker tack line be?

about 4′
The length of this line is adjusted depending on the wind velocity and point of sail. As you head up onto progressively tighter reaches, or sail in progressively lighter air, the line should be pulled tighter so the tack is closer to the deck. The range of this adjustment will be about 4′.

How do you calculate mooring size?

Mooring Chain Its length should be 1 1/2 times maximum water depth. The secondary (riding) chain, is connected to the ground chain with a galvanized shackle or swivel. It’s usually half the diameter of the ground chain and equal in length to maximum water depth.

How wide is a dock?

Common dock door dimensions are 8’0″ in width with 8 ft, 9 ft or 10 ft heights. Consider extending the door 13 ft to 14 ft above the driveway and a minimum of 8’6″ wide if full access to the truck’s interior is required. Dock doors dimensions are determined by: Type of trucks being serviced.

What size dock do I need?