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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
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  • Schaefer Twin Sheet Lead 25x3MM - Black [32-77]
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    Schaefer Twin Sheet Lead 25x3MM - Black [32-77]

    Schaefer Marine

    MSRP: $410.10
    $286.99
    Twin Sheet Lead 25x3MM - Black32-77 Twin Sheet Lead block. The anodized aluminum body is machined from 6061-T6 aluminum and articulates to ensure a proper lead. Anodized aluminum sheave runs on Nomex™/Teflon™ bearing for a low-friction high...
    MSRP: $410.10
    $286.99
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  • Ronstan Series 15 Ball Bearing Utility Block - Double, Loop Head [RF15202]
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    Ronstan Series 15 Ball Bearing Utility Block - Double, Loop Head [RF15202]

    Ronstan

    MSRP: $30.89
    $26.26
    Series 15 Ball Bearing Utility Block - Double, Loop HeadFeatures:Smallest and lightest ball bearing block availablePrecision molded acetal sheave running on stainless steel ball bearings provide high performance & low frictionSingle loop head blocks...
    MSRP: $30.89
    $26.26
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    $26.26
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  • Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head [RF45130]
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    Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head [RF45130]

    Ronstan

    MSRP: $119.02
    $101.17
    Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel HeadFeatures:Ultra LightweightLow friction 2-stage Orbital ball bearing systemHighest working load in its classLow profile and compactHigh performance cleatingLightweightKilogram for...
    MSRP: $119.02
    $101.17
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  • Harken 57mm Triple Carbo Block - Swivel, Becket, Cam Cleat [2141]
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    Harken 57mm Triple Carbo Block - Swivel, Becket, Cam Cleat [2141]

    Harken

    MSRP: $330.50
    $290.95
    57mm Triple Carbo Block - Swivel, Becket, Cam CleatCarbo Ratchets allow sailors to hand-hold loaded lines and offer a balance between holding power and controlled easing.Features:Sheave Ø (mm) 57 mmSheave Ø (in) 2 1/4 inMaximum line...
    MSRP: $330.50
    $290.95
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  • Harken 57mm Carbo Quad Block - Swivel [2631]
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    Harken 57mm Carbo Quad Block - Swivel [2631]

    Harken

    MSRP: $242.85
    $213.95
    57mm Carbo Quad Block - SwivelLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming...
    MSRP: $242.85
    $213.95
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  • Harken 57mm Quad Block Swivel, Center Becket [HSB380]
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    Harken 57mm Quad Block Swivel, Center Becket [HSB380]

    Harken

    MSRP: $244.45
    $164.99
    57mm Quad Block Swivel, Center BecketLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming...
    MSRP: $244.45
    $164.99
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    MSRP: $244.45
    $164.99
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  • Harken Midrange Single w\/Aluminum Sheave Block [1542]
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    Harken Midrange Single w/Aluminum Sheave Block [1542]

    Harken

    MSRP: $217.95
    $191.95
    Midrange Single with Aluminum Sheave BlockMidrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast trim and release under any...
    MSRP: $217.95
    $191.95
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    $191.95
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  • Harken Midrange Single Block [1540]
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    Harken Midrange Single Block [1540]

    Harken

    MSRP: $162.95
    $143.95
    Midrange Single BlockMidrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast trim and release under any load...
    MSRP: $162.95
    $143.95
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    $143.95
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  • Harken Midrange Double Block [1544]
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    Harken Midrange Double Block [1544]

    Harken

    MSRP: $318.35
    $279.95
    Midrange Double BlockMidrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast trim and release under any load...
    MSRP: $318.35
    $279.95
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    MSRP: $318.35
    $279.95
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  • Harken 60mm Element Stand Up Block [6277]
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    Harken 60mm Element Stand Up Block [6277]

    Harken

    $220.15
    60mm Element Stand Up BlockStand-up blocks are an addition to our Element line. Use them for sheeting and halyard systems, running backstays, controls and other applications where you don’t want the block to hit the deck.Element blocks introduce...
    $220.15
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  • Harken 80mm Element Stand Up Block [6280]
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    Harken 80mm Element Stand Up Block [6280]

    Harken

    $336.35
    80mm Element Stand Up BlockStand-up blocks are an addition to our Element line. Use them for sheeting and halyard systems, running backstays, controls and other applications where you don’t want the block to hit the deck.Element blocks introduce...
    $336.35
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  • Harken 80mm Single Element Block Mastbase w\/Swivel [6221]
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    Harken 80mm Single Element Block Mastbase w/Swivel [6221]

    Harken

    $110.05
    80mm Single Element Block Mastbase with SwivelElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of...
    $110.05
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