Choosing a perfect anchor for your boat: All you need to know


A good anchor is essential for a boat, and every boat should have at least one anchor. So, you should be careful while selecting an anchor for your boat. Here are some tips for choosing an anchor for your boat.

While choosing an anchor for your boat, you need to consider the bottom conditions (sand, mud, weed, grass, rocks, silt, clay, gravel). You can’t use a single type of anchor for all bottom types. One anchor will set well in sand, and another in rocks, etc. So, it depends on the bottom type as well.

So, while choosing an anchor, the type of the bottom you are anchoring in plays a major role. In the below table, I mentioned what type of anchors you need to use based on all bottom conditions.

Bottom TypeType of anchor that
set well in that bottom
Examples
Sand bottomFluke, CQR, Delta,
Bruce, Modern
Danforth, Fortress,
Plough, Delta, Rocna,
Mantus, Manson Supreme,
Spade, Claw
Mud bottomFluke, CQR, Delta,
Bruce, Modern
Danforth, Fortress,
Rocna, Mantus,
Manson Supreme, Spade
Delta, Claw
Clay bottomFluke, CQR, Delta,
Bruce, Modern
Danforth, Rocna,
Mantus, Manson Supreme,
Spade, Delta
Rocky bottomModern, CQR,
Delta, Fisherman
Northill
CQR, Rocna, Mantus,
Manson Supreme,
Spade, Delta,
Gravel or pebble
bottom
Modern, CQR,
Delta, Fisherman
Northill
CQR, Rocna, Mantus,
Manson Supreme,
Spade, Delta,
Grass bottomModern, Delta, CQRCQR, Rocna, Mantus,
Manson Supreme,
Spade, Delta
Weed bottomModern, Delta, CQRSpade, Plough,
Mantus, Manson Supreme
Silt bottomFluke, CQR, Delta,
Bruce, Modern
Danforth or fortress,
Plough, Delta, Rocna,
Mantus, Manson Supreme,
Spade, Claw

Those are the different types of bottom conditions, and you need to use the recommended type of anchors for particular bottoms. For some bottom types, all the types of anchors will set well. Now, we will see what size anchor you need to buy for your boat.

The size of the anchor you need to choose depends on the size, weight of your boat, and bottom conditions as well. First, you need to check the bottom conditions, then select the anchor type. After selecting the anchor type, then select the anchor size (weight) based on the boat length and weight.

For each type of boat, the anchor sizes will vary, and their boat recommendations will vary a lot. So, first, select the anchor type based on the bottom wherever you boat, and then select the anchor size.

For selecting that, first, we need to know the anchor types and which one is perfect for their particular bottoms. Now, we will see the major types of anchors that are available out there. After that, we will see the anchors based on the different bottom types.

Types of boat anchors

  1. Fluke or Danforth anchor
  2. CQR or Plow anchor
  3. Delta or Wings anchor
  4. Bruce or Claw anchor
  5. Modern anchors or New generation anchors
  6. Mushroom anchor
  7. Grapnel anchor

These are the basic types of anchors, and these are used majorly by the boaters. Now, we will see each type in detail. Before starting that, I wanna point out one essential point. If you are looking to buy an anchor for the first time, then you should be careful because there are many copies of original anchors available out there.

Copy anchors mean it is made up of a different type of material (other than the original type of material that is used to make that type of anchor) or made by a different company. Sometimes, if it is made by a different company, then they might change the name of the anchor. So, while buying an anchor, if it sounds different, it’s fine.

For example, take a fluke type anchor you can get maybe 10 or 20 copies of a fluke type anchor. So, if you are buying an anchor for the first time, you may not know whether it is an original anchor (good quality one) or, its a copy anchor (low quality one). If the copy anchor is made using a strong material, then it is fine to buy the copy anchor.

Sometimes, these copy anchors are made up of poor quality material. While buying an anchor for the first time, you need to be careful about the copy anchors and their names as well.

1. Fluke or Danforth anchor

Fluke or Danforth anchors are the most popular anchors. Many boaters will use these anchors in their boats. We will now see for which type of bottom types we will use these Danforth or fluke anchors.

Fluke or Danforth anchors are used in the bottoms like sand, mud, clay, and silt. In hard clay bottoms, Fluke or Danforth anchors won’t set as nicely as it sets in normal bottoms. Still, it is a good option for clay bottoms. Fluke anchors are not suitable for rock, gravel, weed, and grass bottoms.

Image is linked to Amazon

Fluke or Danforth anchor (linked to Amazon). Check the price in amazon, and it is worth buying a fluke anchor for sand, mud, clay, and silt bottom.

Fluke anchorsSetting
ability
(for 5 points)
Resetting
ability
(for 5 points)
Holding power
(for 5 points)
Robust
(for 5 points)
Mud4354
Sand4355
Grass1121
Weed1121
Rock1111
Gravel1111
Silt5454
Clay4344

Due to its fluke design, it will penetrate well in the sand or mud. These anchors are very light in weight. The stock is hinged so the flukes can penetrate toward the bottom. For some designs, you can adjust the optimal angle depending on the bottom type.

These anchors penetrate well at the bottom. Once, if it sets well at the bottom, then it can develop high resistance. Its lightweight and compact flat design make it easy to retrieve and relatively easy to stow. There is another type of Danforth anchor.

The other type of Danforth anchor is Fortress anchor. The Fortress is an American aluminum alloy Danforth variant. It can be disassembled for storage, and it features an adjustable 32° and 45° shank/fluke angle to improve holding capability in bottoms such as hard sand and soft mud.

Danforth anchors reset well and the fortress anchor will not reset like a Danforth anchor. A Danforth will not usually penetrate or hold in gravel or weed or rock bottoms. In the below table, I listed the Fluke or Danforth anchor size based on the boat size (source). The values may vary a little bit if the boat weight is heavy or very light.

Anchor Weight
(in lbs.)
Boat Length
(in feet)
Holding Power
(in lbs.)
3.5 lbs.< 10 feet160 lbs.
5 lbs.10-17 feet300 lbs.
9 lbs.17-27 feet600 lbs.
14 lbs.27-31 feet920 lbs.
16 lbs.31-36 feet1300 lbs.
25 lbs.36-40 feet1600 lbs.
43 lbs.40-45 feet2000 lbs.
70 lbs.45-55 feet3000 lbs.
100 lbs.55-603500 lbs.

The advantages of Fluke or Danforth anchor and Fortress anchor

  • Fluke anchors are excellent in normal sand, silt, mud, and clay bottom types.
  • Fluke anchors are very light in weight.
  • Fluke anchors can be stowed well in the boat.
  • Fluke anchors can be disassemblable.
  • Fluke anchors are inexpensive compared to other style anchors.
  • Fluke anchors will be the right choice for small boats because fluke anchors are lightweight type anchors.

The disadvantages of Fluke or Danforth anchor and Fortress anchor

  • Fluke anchors are not suitable for rock, gravel, weed, and grass bottom types.
  • Fluke anchors have less holding power than other anchors.
  • Fluke anchors will not reset easily if the wind or current shifts.
  • Fluke anchors are not the right choice for big boats because these are lightweight anchors and may not work well for big boats.
  • The anchor flukes might bend if you use fluke anchor in rock or gravel bottoms.

2. CQR or Plow anchor

CQR or Plow anchors are also known as hinged anchors, and one of the good ones for anchoring. Many big boaters will use these anchors in their boats. We will now see for which type of bottom types we will use these CQR or Plow anchors.

CQR or Plow anchors are used in the bottoms like rock, gravel, sand, grass, clay, weed, mud, and silt. But in grass, weed, and very soft bottoms, CQR anchors won’t set as nicely as it sets in normal bottoms. Still, CQR anchors are okay for grass, weed, and very soft bottom types.

Image is linked to Amazon

CQR or plow anchors (linked to Amazon). Check the price in amazon, and it is worth buying a CQR or plow anchor for rock, gravel, clay, sand, mud, grass, weed, and silt bottom (sometimes, may not work well in grass, weed, and very soft bottoms). But, the problem with CQR anchors is the hinge, the anchor may roll sideways if the wind or current changes. Consider that point while buying a delta anchor.

CQR anchorsSetting
ability
(for 5 points)
Resetting
ability
(for 5 points)
Holding power
(for 5 points)
Robustness
(for 5 points)
Mud4354
Sand4355
Grass3233
Weed3232
Rock4344
Gravel4444
Silt5455
Clay5445

CQR or Plow anchors can be stowed conveniently in a roller at the bow, and have been popular with cruising sailors and private boaters. CQR or Plow anchors are generally good in all types of bottoms, except soft bottoms.

The only problem with CQR or Plow anchors is that it won’t set properly. Generally, it takes time to set due to the hinge. And another problem with CQR or Plow anchors is it will roll down if the wind or current changes. So, it might be an issue for many boaters.

This anchor is a big one, and due to its hinged design, it is more difficult to stow it in the boat than the Fluke anchor. This is why most people purchase the Fluke anchor over the Plow anchor as long as the Fluke anchor will meet all their needs.

You need to consider those things while buying a CQR or Plow type anchors. To prevent those problems, they invented non-hinged types of anchors known as Delta or Wing anchors. Many modern anchors are also designed similarly to a Plow style anchor. Some of them are Rocna, Manson Supreme, Mantus, Spade anchors.

There are different brands available out there, and you can’t find all types of sizes in only one brand. In the below table, I listed the CQR or Plow anchor size based on the boat size (source). The values may vary a little bit if the boat weight is heavy or very light.

Anchor Weight
(in lbs.)
Boat Length
(in feet)
15 lbs.up to 20 feet
20 lbs.20-30 feet
25 lbs.22-26 feet
35 lbs.26-45 feet
45 lbs.32-58 feet
60 lbs.45-65 feet
75 lbs.52-72 feet
105 lbs.70-90 feet

The advantages of CQR or Plow anchor

  • CQR anchors are excellent in rock, gravel, sand, grass, clay, mud, weed, and silt bottoms (sometimes, may not work well in grass, weed, and very soft bottoms).
  • CQR anchors can be stowed conveniently in a roller at the bow.
  • CQR anchors penetrate deep into the bottom and have good holding power.
  • CQR anchors will be the right choice for big boats because these anchors are heavy anchors.

The disadvantages of CQR or Plow anchor

  • Sometimes, CQR anchors will not set properly or holds less in the grass, weed, and very soft bottoms.
  • CQR anchors roll over to the side easily than other anchors.
  • CQR anchors take more space, and can’t be stowed easily in the boat due to its hinge design.
  • CQR anchors take time to set at the bottom.

3. Delta or Wing anchor or Non-hinged anchor

Delta or Wing anchors are also known as non-hinged anchors, and one of the good anchors. Delta or Wing anchors are many ways similar to CQR or Plow anchors. We will now see for which type of bottom types we will use the Delta or Wing anchors.

The Delta or Wing anchors are used in the bottoms like rock, gravel, grass, clay, sand, mud, weed, and silt. But in the grass, weed, and very soft bottoms, Delta or Wing anchors won’t set as nicely as it sets in normal bottoms. Still, they are okay for weed, grass, and very soft bottom types.

“Delta anchor is almost the same as CQR anchor (performance-wise).”

Image is linked to Amazon

Delta or wing anchor (linked to Amazon). Check the price in amazon, and it is worth buying a Delta or wing anchor for rocks, gravel, clay, sand, mud, grass, and silt bottom. But if you are thinking of purchasing a delta anchor, then you should know that sometimes in weed, grass, and very soft bottoms, the delta anchor may not set well at the bottom. Consider that point while buying a delta anchor.

Delta
anchors
Setting
ability
(for 5 points)
Resetting
ability
(for 5 points)
Holding power
(for 5 points)
Robustness
(for 5 points)
Mud4454
Sand4355
Grass4342
Weed3343
Rock4344
Gravel4444
Silt5455
Clay5445

Delta or Wing anchors can be stowed conveniently in a roller at the bow, and have been popular with cruising sailors and private boaters. Delta or Wing anchors are generally good in all types of bottoms, except soft bottoms.

But, Delta or Wing anchor cannot be stowed inside the boat properly because we can’t dismantle a delta anchor. You need to consider all these things while buying a Delta or Wing type anchor.

In the below table, I listed the Delta or Wing anchor size based on the boat size (source). The values may vary a little bit if the boat weight is heavy or very light.

Anchor Weight
(in lbs.)
Boat Length
(in feet)
13 lbs.17-29 feet
22 lbs.30-40 feet
33 lbs.40-49 feet
44 lbs.47-57 feet
55 lbs.53-63 feet
66 lbs.57-70 feet

The advantages of Delta or Wing anchors

  • Delta anchors are excellent in rock, gravel, sand, mud, clay, grass, weed and silt bottoms (sometimes, may not work well in weed, grass, and very soft bottoms).
  • Delta anchors can be stowed conveniently in a roller at the bow.
  • Delta anchors penetrate deep into the bottom and have good holding power.
  • Delta anchors will be the right choice for big boats because these are heavy anchors.

The disadvantages of Delta or Wing anchors

  • Sometimes, Delta anchors will not set properly or holds less in the weed, grass, and very soft bottoms.
  • Delta anchors can’t be stowed easily in the boat due to its hinge design.
  • Delta anchors take time to set at the bottom.

4. Bruce or Claw anchor

Bruce or Claw anchors are another type of famous anchors. It looks like a claw. It has three claws on it, which makes it easy to handle in many types of bottom conditions. We will now see for which type of bottom types we can use the Bruce or Claw anchors.

Bruce or Claw anchors are used in the bottoms like sand, mud, and silt. In rock, gravel, weed, grass, and hard clay bottoms, Bruce anchors won’t set as nicely as it sets in normal bottoms. You can pull the anchor back easily. Bruce anchors are more effective in large sizes than smaller ones.

Image is linked to Amazon

Bruce or claw anchors (linked to Amazon). Check the price in amazon, and it is worth buying a bruce or claw anchor for sand, mud, and silt bottom. But, if you are thinking of purchasing a bruce anchor, then you should know that sometimes in rock, gravel, weed, grass, and hard clay bottoms, the bruce anchor may not set well at the bottom. Consider that point while buying a bruce anchor.

Bruce
anchors
Setting
ability
(for 5 points)
Resetting
ability
(for 5 points)
Holding power
(for 5 points)
Robustness
(for 5 points)
Mud4354
Sand4355
Grass2232
Weed2121
Rock3343
Gravel3243
Silt5455
Clay2131

Bruce or Claw type anchors won’t set quickly in most of the bottoms, but they have the strong ability of not breaking out with tide or wind changes, instead slowly turning in the bottom to align with the force. Sometimes, these anchors may roll down and hold with only one the claw, rather than three claws.

That is the main drawback of Bruce or Claw anchors. These anchors won’t penetrate easily in grass and weed. Bruce or Claw anchors are not good for grass or weed bottoms. Bruce or Claw anchors set well in the low scope. Bruce or Claw anchors are more effective in large sizes than smaller ones.

In the below table, I listed the Bruce or Claw anchor sizes based on the boat size (source). The values may vary a little bit if the boat is heavy or very light.

Anchor Weight
(in lbs.)
Boat Length
(in feet)
6 lbs.13-22 feet
11 lbs.18-25 feet
16 lbs.22-34 feet
22 lbs.25-35 feet
33 lbs.30-40 feet
44 lbs.35-50 feet
55 lbs.39-55 feet
66 lbs.40-60 feet

The advantages of Bruce or Claw anchors

  • Bruce anchors are excellent in sand, mud, and silt bottoms.
  • Bruce anchors stow easily on a bow roller.
  • Bruce anchors have a strong ability to not breaking out with tide or wind changes.
  • Once it sets at the bottom, then it will set or hold well at the bottom.
  • Bruce anchors will be the right choice for big boats.

The disadvantages of Bruce or Claw anchors

  • Bruce anchors will not set properly or holds less in rock, hard clay, gravel, grass, weed bottoms.
  • Bruce anchor rolls over to the side easily, then it may hold with only one claw instead of three claws.
  • Bruce anchors take more time to set at the bottom.
  • Bruce anchors take more space and can’t be stowed easily in the boat.

5. Modern anchors or New generation anchors

These anchors are a bit expensive. But, these Modern anchors or New generation anchors are the best anchors available in the market. If you have a good amount in the wallet, then go for these types of anchors. We will now see for which type of bottom types we can use these Modern anchors or New generation anchors.

The Modern anchors or New generation anchors can be used for most of the types of bottoms (sand, mud, weed, grass, rocks, silt, clay, and gravel). Some of them are Rocna, Mantus, Manson Supreme, and Spade. These anchors set well in all types of bottom types.

Modern
anchors
Setting
ability
(for 5 points)
Resetting
ability
(for 5 points)
Holding power
(for 5 points)
Robustness
(for 5 points)
Mud5454
Sand5555
Grass4454
Weed4354
Rock4454
Gravel4454
Silt5555
Clay5455

You can consider these anchors as a category of non-hinged CQR or Plough anchors OR delta anchors. If you are going for bigger ones, then buy one of these anchors.

All these anchors will set quickly, and these types of anchors are the best ones for your boat. These anchors will penetrate well in the ground instantly after dropping them. These anchors are heavy and can be used for big boats (above 20 feet in length).

These anchors are very strong and durable. Mostly they can withstand any type of bottoms. These anchors will be a perfect choice for many big boats. These modern or new generation anchors can be divided into two categories. One roll bar and another will not have a roll bar anchor. Now, we will see them.

A roll bar anchor has a circular bar mounted on the back of the anchor, and it is useful for setting the anchor back if the anchor comes out off the bottom due to the wind or currents. Mantus, Manson Supreme, Rocna anchors come under the category of Rollbar.

A non-roll bar anchor doesn’t have any circular bar mounted on the back like a roll bar anchor. Some of the anchors under the non-roll bar category are Spade, delta anchor, etc.

Mantus anchor

Mantus anchor (linked to Amazon) has a 50% weight in a tip to body ratio, it has a very sharp tip and aimed towards the ground, which means the anchor sets very quickly. This has a roll bar, which will give support if the anchor rolls side. This anchor is disassemblable. Mantus sets very well among all the anchors.

Manson Supreme anchor

Manson Supreme anchor (linked to Amazon) has a 23% weight in a tip to body ratio. Manson Supreme shank is solid, thicker, and has broader shank than Mantus shank. The tip of the Manson Supreme anchor is aimed towards the ground. This has a roll bar, which will give support if the anchor rolls side. This is a robust anchor, and good for many boats.

Spade anchor

Spade anchor (linked to Amazon) has 42% weight in a tip to body ratio, it is a very sharp tip and aimed downwards, which means the anchor sets very quickly. Shank is removable. Spade anchors are very best for short scope. This one doesn’t have a roll bar on it. But, it has a fluke in the shape of the concave lens. So, it will reset well.

Rocna anchor

Rocna anchors (linked to Amazon) are one of the most famous anchors. Rocna anchors have a sharp tip, and it is aimed downwards, which means the anchor sets very quickly. These anchors are perfect for many bottom conditions.

The advantages of Modern or New generation anchors

  • Modern anchors are the perfect anchors for all types of bottoms.
  • Modern anchors have a sharp tip and penetrate well into the bottom.
  • Modern anchors set quickly in the bottoms.
  • Modern anchors penetrate deeply into the bottoms for better bonding power.
  • Modern anchors are easy to stow on the bow roller.

The disadvantages of Modern or New generation anchors

  • Modern anchors penetrate deep into the bottom, and it may be hard to retrieve them back.
  • Some of the modern anchors cannot be stowed in the boat.
  • Modern anchors are expensive.
  • Some of these designs have more shank weight. If the anchor has more shank weight, it might bend in the long run. But, don’t worry about that, it won’t bend that easily.

6. Mushroom anchor

Mushroom anchors (linked to Amazon) are another popular type of anchor mostly used for small boats. These anchors look like a mushroom. We will now see the for which type of bottom types we can use these mushroom anchors.

The mushroom anchors are used in the bottoms like mud, silt, and for any soft bottoms. Generally, these anchors are recommended only for small boats like canoes, kayaks, and small dinghies. Don’t use these types of anchors as a primary anchor for a big boat.

The holding power of this anchor is at best about twice its weight until it becomes buried when it can be as much as ten times its weight. They are available in sizes from about 5 kg up to several tons.

7. Grapnel anchor

Grapnel anchors (linked to Amazon) are another type of anchor mostly used for small boats. We will now see the for which type of bottom types we can use these grapnel anchors.

The Grapnel anchors are used in the bottoms like coral or rock bottoms. Generally, these anchors are recommended only for small boats like canoes, kayaks, and small dinghies. Don’t use these types of anchors as a primary anchor for a big boat.

Bottom types and suitable anchors

Bottom types are the main criteria for selecting the different types of anchors. Every boater needs to check the bottom type for buying an anchor. Here are most of the bottom types you might face while boating.

  1. Mud Bottom
  2. Sand Bottom
  3. Grass Bottom
  4. Weed Bottom
  5. Rock Bottom
  6. Clay bottom
  7. Silt Bottom
  8. Gravel or Pebble Bottom

These are the most common types of bottom conditions you will see while anchoring the boat. We will now see which types of anchors need to be used for each bottom type.

Also, check my article on Boat anchors for offshore (oceans or seas) click here (opens in a new tab).

1. Boat anchors for mud bottom

The best boat anchor for mud bottoms is Fluke, Delta, and Bruce anchors. Among them, Fluke anchors are best because it has two big flukes providing a better holding power. Still, you can use delta, bruce, cqr, and modern anchors. But, Fluke anchors are good for muddy bottoms (worthy).

All types of anchors are best for mud bottoms (fluke, cqr, delta, bruce, and modern). But Fluke anchors are worth buying for a mud bottom. If you are boating in only these types of bottoms (mud), then take only fluke anchors. If you do boating in different places or different kinds of bottoms, then choose modern or other anchors (but, if you have a big boat, then go for big anchos such as modern, cqr, delta, and bruce.

For boating only in mud bottom types, fluke anchors are sufficient (but, only for small boats, not for big boats). You don’t need to buy other expensive anchors such as modern, delts, CQR, and bruce (still, those are excellent anchors). But if you have a big boat, then don’t buy fluke anchors because fluke anchors are lightweight type anchors, and may not work well for big boats.

Check my article on boat anchors for mud bottom click here

2. Boat anchors for sand bottom

The best boat anchor for sand bottoms is Fluke, Delta, and Bruce anchors. Among them, Fluke anchors are best because it has two big flukes providing a better holding power. Still, you can use delta, cqr, bruce, and modern anchors. But, Fluke anchors are good for sand bottoms (worthy).

All types of anchors are best for sand bottoms (fluke, cqr, delta, bruce, and modern). But Fluke anchors are worth buying for a sand bottom. If you are boating in only these types of bottoms (sand), then take only fluke anchors. If you do boating in different places or different kinds of bottoms, then choose modern or other anchors (but, if you have a big boat, then go for big anchos such as modern, cqr, delta, and bruce.

For boating only in sand bottom types, fluke anchors are sufficient (but, only for small boats, not for big boats). You don’t need to buy other expensive anchors such as modern, delts, CQR, and bruce (still, those are excellent anchors). But if you have a big boat, then don’t buy fluke anchors because fluke anchors are lightweight type anchors, and may not work well for big boats.

Check my article on boat anchors for sand bottom click here

3. Boat anchors for Grass bottoms

The best boat anchor for grass bottoms is Modern, Delta, and CQR anchors. All among them are good for grass bottoms because they have a sharp tip on the anchors. So, they will penetrate well in grass bottoms. Sometimes, CQR and Delta anchor may not set well in the grass bottoms.

For grass bottoms, delta or CQR or modern anchors will work soo well. Bruce anchors will not work effectively as it works for other bottoms. Don’t buy Fluke anchors for grass bottoms because they won’t set properly. Spade anchor will be a perfect choice for a grass bottom.

Check my article on boat anchors for grass bottom click here

4. Boat anchors for weed bottoms

The best boat anchor for Weed bottoms is Modern, Delta, and CQR anchors. Among them, modern and delta anchors work well in weed bottoms. They have a sharp tip and penetrate well in weed bottoms. Fisherman anchors also set well in weed bottoms. Fluke and bruce anchors are not good for weed bottoms.

For weed bottoms, modern, cqr, and delta anchors will work soo well. Bruce anchors will not work effectively as it works for other bottoms. Don’t buy Fluke anchor, for weed bottoms, it won’t set properly. Mantus, Rocna, Manson Supreme, and Spade anchors will be a perfect choice for a weed bottom.

Check my article on boat anchors for weed bottom click here

5. Boat anchors for rock bottoms

The best boat anchor for rock bottoms is Modern, CQR, Delta, and Fisherman anchors. All among them are good for rock bottoms because they have a sharp tip on the anchors (especially Northill anchor). So, they will hold well in rock bottoms. Don’t use Fluke anchors for rock bottoms (Bruce is okay).

Delta and Modern anchors such as Manson Supreme or Mantus or Rocna will work well in rock bottoms. Also, Northill or fisherman anchor would be a good choice for rock bottoms. Don’t use fluke anchors for rock bottoms. Bruce anchor will not work well and take some time to set in rock bottoms.

Check my article on boat anchors for rock bottom click here

6. Boat anchors for clay bottoms

The best boat anchor for clay bottoms is Fluke, CQR, and Delta anchors. All among them are good for clay bottoms because they have a sharp tip on the anchors. So, they will penetrate well in clay bottoms. Sometimes, fluke anchors will take some time or won’t set well in hard clay bottoms.

All anchors are good for clay bottoms. Sometimes, fluke anchors will not set well in hard clay bottoms. Bruce anchors will take time to set in clay bottoms. Fluke, CQR, and Delta anchors are good for clay bottoms. Delta and modern anchors will be the perfect choice for clay bottoms (if you have a good amount in the wallet, then buy them).

Check my article on boat anchors for clay bottom click here

7. Boat anchors for silt bottoms

The best boat anchor for silt bottoms is Fluke, Delta, and Bruce anchors. Among them, Fluke anchors are best because it has two big flukes providing a better holding power. Still, you can use delta, bruce, car, and modern anchors. But, Fluke anchors are good for silt bottoms (worthy).

All anchors are best for silt bottoms. But, Fluke anchors are worth buying for a silt bottom. If you are boating in only these types of bottoms (silt), then take only fluke anchors. If you do boating in different places or different bottom conditions, then choose modern or other anchors (but, if you have a big boat, then go for big anchos such as modern, cqr, delta, and bruce).

For boating only in silt bottom types, fluke anchors are sufficient. You don’t need to buy other expensive anchors such as modern, delts, CQR, and bruce (still, those are excellent anchors).

8. Boat anchors for gravel or Pebble bottoms

The best boat anchor for gravel bottoms is Modern, CQR, and Fisherman anchors. All among them are good for gravel bottoms because they have a sharp tip on the anchors (especially Northill anchor). So, they will hold well in gravel bottoms. Don’t use Fluke anchors for gravel bottoms(Bruce is okay).

Modern anchors like Manson Supreme or Mantus or Rocna will work well in gravel bottoms. Also, Northill or fisherman anchor would be a good choice for gravel bottoms. Don’t use fluke anchors for rock bottoms. Bruce anchor will not work well and take time to set in gravel bottoms.

Check my article on boat anchors for gravel bottom click here

Key takeaways

For sand, mud, silt, and clay bottoms, Fluke anchors are excellent. But, if you have a big boat, then don’t buy fluke anchors (for big boats fluke anchors are not okay, you need big anchors such as modern, cqr, delta, and bruce). But, for those bottoms (sand, mud, silt, and clay), all boat anchors will work well. So, it depends on your budget (if you have a reasonable or good budget, then go for bigger ones).

For rock, gravel, grass, and weed bottoms, modern anchors are excellent. Still, CQR and delta anchors are excellent. But when it comes to modern VS other anchors, definitely modern anchors will win because they are designed like that (robust). Even fisherman anchors like Northill will work well for those bottoms. Bruce anchors may not work well in those bottoms.

Bottom TypeType of anchor that
set well in that bottom
Examples
Sand bottomFluke, CQR, Delta,
Bruce, Modern
Danforth, Fortress,
Plough, Delta, Rocna,
Mantus, Manson Supreme,
Spade, Claw
Mud bottomFluke, CQR, Delta,
Bruce, Modern
Danforth, Fortress,
Rocna, Mantus,
Manson Supreme, Spade
Delta, Claw
Clay bottomFluke, CQR, Delta,
Bruce, Modern
Danforth, Rocna,
Mantus, Manson Supreme,
Spade, Delta
Rocky bottomModern, CQR,
Delta, Fisherman
Northill
CQR, Rocna, Mantus,
Manson Supreme,
Spade, Delta,
Gravel or pebble
bottom
Modern, CQR,
Delta, Fisherman
Northill
CQR, Rocna, Mantus,
Manson Supreme,
Spade, Delta,
Grass bottomModern, Delta, CQRCQR, Rocna, Mantus,
Manson Supreme,
Spade, Delta
Weed bottomModern, Delta, CQRSpade, Plough,
Mantus, Manson Supreme
Silt bottomFluke, CQR, Delta,
Bruce, Modern
Danforth or fortress,
Plough, Delta, Rocna,
Mantus, Manson Supreme,
Spade, Claw

Mahidhar

My name is Mahidhar, and I am passionate about boating. Every day I learn some new things about boats and share them here on the site.

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