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Blocks

Sailing Blocks

Sailing blocks provide smooth, reliable line control for sails, rigging, and deck operations. Engineered for strength and low friction, blocks make sail handling efficient, safe, and precise in all conditions.

High-Performance Sailing Blocks

  • Durable, corrosion-resistant construction for long-lasting use
  • Low-friction sheaves for smooth line handling and reduced wear
  • Ideal for mainsails, jibs, spinnakers, and custom rigging setups
  • Marine-grade materials designed for performance in saltwater and freshwater

Trusted Brands

Top sailing block brands include Barton Marine, Harken, Lewmar, Ronstan, Schaefer Marine, SeaSure, and Wichard Marine.

Related Sailing Categories

Accessories, Rigging, Rope, Winches

Why Buy Sailing Blocks from MarineWaze

  • Premium-grade blocks for smooth, efficient line handling
  • Trusted brands for durability, strength, and marine performance
  • Expert guidance for selecting the right blocks for your rigging
  • Product
  • Qty in Cart
  • Quantity
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  • Schaefer Single Aluminum Block [704-05]
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    Schaefer Single Aluminum Block [704-05]

    Schaefer Marine

    MSRP: $142.35
    $105.99
    Single Aluminum Block - 60mm SheaveDelrin™ sheave ensures smooth operation and a high safe working load. Swivel head may be locked in place to eliminate twisting.Specifications:Sheave Diameter 2...
    MSRP: $142.35
    $105.99
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    MSRP: $142.35
    $105.99
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  • Schaefer Single Ball Bearing Block [506-05]
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    Schaefer Single Ball Bearing Block [506-05]

    Schaefer Marine

    MSRP: $130.65
    $97.99
    Single Ball Bearing BlockSingle block with aluminum cheeks and ball bearing sheave. Delrin™ ball bearing sheave ensures low-friction operation. Swivel head may be locked in place to avoid twist...
    MSRP: $130.65
    $97.99
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    MSRP: $130.65
    $97.99
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  • Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks [505-11]
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    Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks [505-11]

    Schaefer Marine

    MSRP: $126.55
    $94.99
    Series 5 Flat Base Cheek Block - Stainless Steel CheeksSeries 5 Cheek Block with Stainless Steel cheek. Delrin™ sheave ensures smooth operation and high safe working load. Stainless steel base...
    MSRP: $126.55
    $94.99
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    MSRP: $126.55
    $94.99
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  • Schaefer Single Stainless Steel Block [505-05]
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    Schaefer Single Stainless Steel Block [505-05]

    Schaefer Marine

    MSRP: $109.10
    $81.99
    Single Stainless Steel Block - 51mm SheaveSingle block with stainless steel cheeks. Delrin™ sheave ensures smooth operation and high safe working load.Specifications:Sheave Dia. 2" (51mm)Thickness...
    MSRP: $109.10
    $81.99
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    MSRP: $109.10
    $81.99
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  • Schaefer Spring Loaded\/Lined Slide\/Aluminum f\/1" T-Track [504-82]
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    Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]

    Schaefer Marine

    MSRP: $271.45
    $192.99
    Spring Loaded/Lined Slide/Aluminum for 1" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Anodized aluminum cheeks and stainless steel slider ensure reliability...
    MSRP: $271.45
    $192.99
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    MSRP: $271.45
    $192.99
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  • Schaefer Stand-Up Swivel w\/Aluminum Cheeks [504-62]
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    Schaefer Stand-Up Swivel w/Aluminum Cheeks [504-62]

    Schaefer Marine

    MSRP: $234.20
    $167.99
    Stand-Up Swivel with Aluminum CheeksDelrin™ sheave ensures smooth operation and high safe working load.Specifications:Sheave Dia. 2" (51 mm)Max Line 7/16" (11 mm)Diameter includes urethane base...
    MSRP: $234.20
    $167.99
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    MSRP: $234.20
    $167.99
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  • Schaefer Series 5 Flat Base\/Alum Cheek\/Delrin Sheave [504-11]
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    Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave [504-11]

    Schaefer Marine

    MSRP: $112.10
    $84.99
    Series 5 Flat Base/Alum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area.Specifications:Sheave...
    MSRP: $112.10
    $84.99
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    MSRP: $112.10
    $84.99
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  • Schaefer Single Aluminum Block [504-05] Schaefer Single Aluminum Block - 51mm Sheave [504-05]
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    Schaefer Single Aluminum Block [504-05]

    Schaefer Marine

    MSRP: $93.90
    $71.99
    Single Aluminum Block - 51mm SheaveSingle block with anodized aluminum cheeks. Delrin™ sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist...
    MSRP: $93.90
    $71.99
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    MSRP: $93.90
    $71.99
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  • Schaefer Twin Sheet Block f\/1-1\/4" T-Track - Black [32-97]
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    Schaefer Twin Sheet Block f/1-1/4" T-Track - Black [32-97]

    Schaefer Marine

    MSRP: $522.30
    $371.99
    Twin Sheet Block for 1-1/4" T-Track - BlackHardcoat anodized aluminum body and slider provide a high strength block. Aluminum sheave runs on nomex™/Teflon™ bearing for a low-friction, high strength...
    MSRP: $522.30
    $371.99
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    MSRP: $522.30
    $371.99
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  • Schaefer Series 3 Flat Base\/Alum Cheek\/Delrin Sheave [303-09]
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    Schaefer Series 3 Flat Base/Alum Cheek/Delrin Sheave [303-09]

    Schaefer Marine

    MSRP: $91.05
    $69.99
    Series 3 Flat Base/Alum Cheek/Delrin SheaveDelrin™ plain bearing sheave ensures smooth operation and high safe working load. Stainless Steel base distributes loads to a larger surface area...
    MSRP: $91.05
    $69.99
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    MSRP: $91.05
    $69.99
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  • Schaefer Pulpit Furling Lead Spring Loaded Block - 1" Ball Bearing [300-35]
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    Schaefer Pulpit Furling Lead Spring Loaded Block - 1" Ball Bearing [300-35]

    Schaefer Marine

    MSRP: $185.55
    $133.99
    Pulpit Furling Lead Spring Loaded Block - 1" Ball BearingThe Stainless Steel spring guarantees maximum support for the block. Delrin™ ball bearing sheave ensures low-friction lead for your furling...
    MSRP: $185.55
    $133.99
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    MSRP: $185.55
    $133.99
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  • Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34] Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34]
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    Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34]

    Schaefer Marine

    MSRP: $92.35
    $70.99
    Clamp-On Furling Line Stanchion Lead Block - 1" Ball BearingDelrin™ ball bearing sheave allows for quick and easy furling line adjustment. Stainless steel cage and strap ensure durability...
    MSRP: $92.35
    $70.99
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    MSRP: $92.35
    $70.99
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