null

Free Shipping on orders over $49 throughout the entire Year.

  • Shop all marine categories
Call to: 800-207-7010

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
  • Price
  • Subtotal
  • SeaSure 25mm Treble Block w\/Center Becket [00.32CRD]
    Add to Cart
    Quick view

    SeaSure 25mm Treble Block w/Center Becket [00.32CRD]

    SeaSure

    MSRP: $71.21
    $34.99
    25mm Treble Block with Center BecketThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly...
    MSRP: $71.21
    $34.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $71.21
    $34.99
    Subtotal:
    Add to Cart
  • SeaSure 25mm Treble Block w\/Shackle [00.31CRD]
    Add to Cart
    Quick view

    SeaSure 25mm Treble Block w/Shackle [00.31CRD]

    SeaSure

    MSRP: $66.52
    $49.99
    25mm Treble Block with ShackleThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...
    MSRP: $66.52
    $49.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $66.52
    $49.99
    Subtotal:
    Add to Cart
  • SeaSure 25mm Double Block w\/V-Jam [00.25CRD]
    Add to Cart
    Quick view

    SeaSure 25mm Double Block w/V-Jam [00.25CRD]

    SeaSure

    MSRP: $67.07
    $32.99
    25mm Double Block with V-JamThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...
    MSRP: $67.07
    $32.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $67.07
    $32.99
    Subtotal:
    Add to Cart
  • SeaSure 25mm Double Block w\/Shackle [00.21CRD]
    Add to Cart
    Quick view

    SeaSure 25mm Double Block w/Shackle [00.21CRD]

    SeaSure

    MSRP: $46.96
    $23.99
    25mm Double Block with ShackleThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...
    MSRP: $46.96
    $23.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $46.96
    $23.99
    Subtotal:
    Add to Cart
  • SeaSure 25mm Single Block w\/V-Jam [00.13CRD]
    Add to Cart
    Quick view

    SeaSure 25mm Single Block w/V-Jam [00.13CRD]

    SeaSure

    MSRP: $45.22
    $23.99
    25mm Single Block with V-JamThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...
    MSRP: $45.22
    $23.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $45.22
    $23.99
    Subtotal:
    Add to Cart
  • SeaSure 25mm Single Block w\/Becket [00.11CRD]
    Add to Cart
    Quick view

    SeaSure 25mm Single Block w/Becket [00.11CRD]

    SeaSure

    MSRP: $34.72
    $19.99
    25mm Single Block with BecketThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...
    MSRP: $34.72
    $19.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $34.72
    $19.99
    Subtotal:
    Add to Cart
  • SeaSure 25mm Single Block w\/Clevis Pin [00.07CRD]
    Add to Cart
    Quick view

    SeaSure 25mm Single Block w/Clevis Pin [00.07CRD]

    SeaSure

    MSRP: $26.77
    $15.99
    25mm Single Block with Clevis PinThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing...
    MSRP: $26.77
    $15.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $26.77
    $15.99
    Subtotal:
    Add to Cart
  • SeaSure 25mm Halyard Block [00.03CRD]
    Add to Cart
    Quick view

    SeaSure 25mm Halyard Block [00.03CRD]

    SeaSure

    MSRP: $20.39
    $13.99
    25mm Halyard BlockThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light...
    MSRP: $20.39
    $13.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $20.39
    $13.99
    Subtotal:
    Add to Cart
  • SeaSure 1" Bolt Down Block [00.01CRD]
    Add to Cart
    Quick view

    SeaSure 1" Bolt Down Block [00.01CRD]

    SeaSure

    MSRP: $21.71
    $13.99
    1" Bolt Down BlockThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light...
    MSRP: $21.71
    $13.99
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $21.71
    $13.99
    Subtotal:
    Add to Cart
  • Wichard Snatch Block w\/Snap Shackle - Max Rope Size 18mm (23\/32") [35500]
    Add to Cart
    Quick view

    Wichard Snatch Block w/Snap Shackle - Max Rope Size 18mm (23/32") [35500]

    Wichard Marine

    MSRP: $537.48
    $456.86
    Snatch Block with Snap Shackle - Max Rope Size 18mm (23/32")Features:Free rotation thanks to snap shackleVery strong closing systemEasy opening by simply pulling on the plunger pinShock and scratch-resistant thanks to the elastomer molded...
    MSRP: $537.48
    $456.86
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $537.48
    $456.86
    Subtotal:
    Add to Cart
  • Wichard Snatch Block w\/Snap Shackle - Max Rope Size 12mm (15\/32") [34500]
    Add to Cart
    Quick view

    Wichard Snatch Block w/Snap Shackle - Max Rope Size 12mm (15/32") [34500]

    Wichard Marine

    MSRP: $343.63
    $292.09
    Snatch Block with Snap Shackle - Max Rope Size 12mm (15/32")Features:Free rotation thanks to snap shackleVery strong closing systemEasy opening by simply pulling on the plunger pinShock and scratch-resistant thanks to the elastomer molded...
    MSRP: $343.63
    $292.09
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $343.63
    $292.09
    Subtotal:
    Add to Cart
  • Barton Marine Ratchet Block - 55mm [90500]
    Add to Cart
    Quick view

    Barton Marine Ratchet Block - 55mm [90500]

    Barton Marine

    MSRP: $131.37
    $118.23
    Ratchet Block - 55mmThe Barton Ratchet Block is designed to be used on mainsheet systems and spinnaker sheets on dinghies and keelboats and for small yachts up to 30 feet.Combining high-performance engineering and contemporary design, the 2-3/16" (55...
    MSRP: $131.37
    $118.23
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $131.37
    $118.23
    Subtotal:
    Add to Cart
  • Total: items /

Adding your products to cart

View Cart Continue to Shopping