Fly Line WT Grain Chart

December 14, 2011 By Bruce Chard

Here is a fly line wt chart that shows you the average grains of weight in the first 30 ft (or head of your line).

Number Designation	Standard Weight	Margin For Error Advertisement ×
1-Weight	60	54-66 Advertisement ×
2-Weight	80 Video That May Interest You ×	74-86
3-Weight	100 Recommended Advertisement	94-106
4-Weight	120	114-126
5-Weight	140	134-146
6-Weight Advertisement	160	152-168
7-Weight	185	177-193 Advertisement
8-Weight	210	202-218
9-Weight	240 Advertisement	230-250
10-Weight	280	270-290
11-Weight Advertisement	330	318-342
12-Weight	380	368-392 Advertisement
13-Weight	450
14-Weight	500
15-Weight Advertisement	550

A good friend of mine Capt Dave Chouinard showed me this chart and it is a great example of how much there is to learn about fly lines.

Understanding how the grains of wt differ from line to line can help you balance your favorite rod with your favorite line and do some damage in the salt.

Pay attention to the length of the head and how many grains of wt are in the head of your favorite salt water line. Knowing this will help you chose other lines in the future that will load your rod similar. This helps take some of the guessing out of whether or not certain lines will cast well on your favorite rod.

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