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Sailing - Blocks

Improve sailing control and performance with premium sailing blocks designed to provide smooth operation, reliable handling, and dependable support for your rigging system. Essential for sailboats, cruising vessels, and racing applications, quality blocks help manage lines efficiently while reducing friction and improving overall sailing performance. Our Sailing Blocks collection features pulley blocks, single blocks, double blocks, triple blocks, swivel blocks, deck blocks, ball bearing blocks, and rigging accessories designed for various sailing applications. Built with durable materials and marine-grade construction, these products are engineered to withstand saltwater exposure, weather conditions, and demanding use on the water. Whether upgrading your rigging setup, replacing worn components, or improving sail handling, reliable sailing blocks provide the strength and efficiency sailors need. Featuring trusted marine brands recognized for quality craftsmanship and performance, our Sailing Blocks collection delivers dependable solutions for recreational sailors, racers, and professionals. Shop today and equip your vessel with high-quality sailing blocks built for smoother and more confident sailing adventures.

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  • Barton Marine Size 3 45mm Plain Bearing Pulley Block Single With Fixed Eye [N03110]
    Barton Marine

    Barton Marine Size 3 45mm Plain Bearing Pulley Block Single With Fixed Eye [N03110]

    £12.61
    £14.01
    £12.61
    Size 3 45mm Plain Bearing Pulley Block Single With Fixed EyeThe size 3 Barton plain bearing blocks have a 45mm (1 3/4" sheave size 3 block range that incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fiberglass filled...
    £12.61
    £14.01
    £12.61
  • Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Swivel [N00130]
    Barton Marine

    Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Swivel [N00130]

    £18.42
    £20.47
    £18.42
    Size 0 20mm Plain Bearing Pulley Block Single SwivelThe Barton Size 0 Plain bearing block has 20mm (3/4″) sheaves and is also available in ball bearing sheaves. Designed for high strength and performance but lightweight with the range starting at only 13gms (0.5oz).Suitable for...
    £18.42
    £20.47
    £18.42
  • Barton Marine Size 0 20mm Plain Bearing Pulley Block Stand Up Block [N00170]
    Barton Marine

    Barton Marine Size 0 20mm Plain Bearing Pulley Block Stand Up Block [N00170]

    £13.76
    £15.29
    £13.76
    Size 0 20mm Plain Bearing Pulley Block Stand Up BlockThe Barton Size 0 Plain bearing block has 20mm (3/4″) sheaves and is also available in ball bearing sheaves. They are designed for high strength and performance but lightweight with the range starting at only...
    £13.76
    £15.29
    £13.76
  • Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Swivel Becket [N00191]
    Barton Marine

    Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Swivel Becket [N00191]

    £11.68
    £12.98
    £11.68
    Size 0 20mm Plain Bearing Pulley Block Single Swivel & BecketThe Barton Size 0 Plain bearing block has 20mm (3/4″) sheaves and is also available in ball bearing sheaves. They are designed for high strength and performance but lightweight with the range starting at...
    £11.68
    £12.98
    £11.68
  • Barton Marine Size 1 Single Swivel Block w/Becket [N01130]
    Barton Marine

    Barton Marine Size 1 Single Swivel Block w/Becket [N01130]

    £15.73
    £17.48
    £15.73
    Size 1 Single Swivel Block with BecketWith the unique super-low friction ball race systems, featuring acetal sheaves and delrin ball bearings, running on a large diameter center boss. This allows us to fit more load-bearing balls, which ensure extremely low friction performance, even under...
    £15.73
    £17.48
    £15.73
  • Harken 57mm Carbo Quad Block - Swivel [2631]
    Harken

    Harken 57mm Carbo Quad Block - Swivel [2631]

    £164.28
    £186.48
    £164.28
    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.Features: Sheave Ø (mm) 57 mm Sheave Ø (in) 2...
    £164.28
    £186.48
    £164.28
  • Harken 80mm Element Stand Up Block [6280]
    Harken

    Harken 80mm Element Stand Up Block [6280]

    £258.27
    £0.00
    £258.27
    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 sideplates that combine forged aluminum and...
    £258.27
    £0.00
    £258.27
  • Harken Midrange Double Block [1544]
    Harken

    Harken Midrange Double Block [1544]

    £214.96
    £244.45
    £214.96
    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.Features:  Sheave: 76mm/3" Maximum Line: 14mm/9/16" Max Working...
    £214.96
    £244.45
    £214.96
  • Harken 45mm Double Element Block w/Swivel [6238]
    Harken

    Harken 45mm Double Element Block w/Swivel [6238]

    £80.78
    £0.00
    £80.78
    45mm Double Element Block 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 metal required to protect the sheave with a proven journal bearing. So...
    £80.78
    £0.00
    £80.78
  • Harken 45mm Double Element Block w/Swivel Becket [6239]
    Harken

    Harken 45mm Double Element Block w/Swivel Becket [6239]

    £90.11
    £0.00
    £90.11
    45mm Double Element Block with Swivel & BecketElement 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 metal required to protect the sheave with a proven journal...
    £90.11
    £0.00
    £90.11
  • Harken 45mm Triple Element Block w/ Swivel Becket [6241]
    Harken

    Harken 45mm Triple Element Block w/ Swivel Becket [6241]

    £112.34
    £0.00
    £112.34
    45mm Triple Element Block with Swivel & BecketElement 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 metal required to protect the sheave with a proven journal...
    £112.34
    £0.00
    £112.34
  • Harken 45mm Triple Element Block w/Swivel [6240]
    Harken

    Harken 45mm Triple Element Block w/Swivel [6240]

    £104.01
    £0.00
    £104.01
    45mm Triple Element Block 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 metal required to protect the sheave with a proven journal bearing. So...
    £104.01
    £0.00
    £104.01
  • Harken 57mm Triple Carbo Block - Swivel, Becket, Cam Cleat [2141]
    Harken

    Harken 57mm Triple Carbo Block - Swivel, Becket, Cam Cleat [2141]

    £223.41
    £253.78
    £223.41
    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 mm Sheave Ø (in) 2 1/4 in Maximum line Ø (mm) 10 mm Maximum...
    £223.41
    £253.78
    £223.41
  • Harken Midrange Single w/Aluminum Sheave Block [1542]
    Harken

    Harken Midrange Single w/Aluminum Sheave Block [1542]

    £147.39
    £167.36
    £147.39
    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 load.Features:  Sheave: 76mm/3" Maximum Line:...
    £147.39
    £167.36
    £147.39
  • Harken 29mm Double Bullet Block w/Becket [085]
    Harken

    Harken 29mm Double Bullet Block w/Becket [085]

    £45.27
    £51.56
    £45.27
    29mm Double Bullet Block with BecketLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Features: Sheave: 29mm (1-1/8")...
    £45.27
    £51.56
    £45.27
  • Harken 29mm Double Bullet Block [084]
    Harken

    Harken 29mm Double Bullet Block [084]

    £42.19
    £48.07
    £42.19
    29mm Double Bullet BlockLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Features: Sheave: 29mm (1-1/8") Maximum Line:...
    £42.19
    £48.07
    £42.19
  • Harken 38mm Double Big Bullet Block w/Becket [128]
    Harken

    Harken 38mm Double Big Bullet Block w/Becket [128]

    £74.44
    £84.58
    £74.44
    38mm Double Big Bullet Block with BecketLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Features: Sheave: 38mm...
    £74.44
    £84.58
    £74.44
  • Harken 22mm Triple Micro Block w/Becket [229]
    Harken

    Harken 22mm Triple Micro Block w/Becket [229]

    £42.19
    £47.91
    £42.19
    22mm Triple Micro Block with BecketLow-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes.Specifications: Sheave: 22mm / 7/8in. Length: 64mm / 2.5in. Weight: 64g / 2.25oz. Maximum line: 6mm...
    £42.19
    £47.91
    £42.19
  • Ronstan Series 25 Utility Block - Single - Swivel Shackle Head [RF573]
    Ronstan

    Ronstan Series 25 Utility Block - Single - Swivel Shackle Head [RF573]

    £16.65
    £19.60
    £16.65
    Series 25 Utility Block™ - Single - Swivel Shackle HeadStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket...
    £16.65
    £19.60
    £16.65
  • Schaefer Stand-Up Swivel - Aluminum Block [704-62]
    Schaefer Marine

    Schaefer Stand-Up Swivel - Aluminum Block [704-62]

    £159.71
    £216.46
    £159.71
    Stand-Up Swivel - Aluminum BlockSpecifications: Sheave Dia. 2-2/8" (60 mm) Max Line 1/2" (13 mm) Diameter includes urethane base 3-3/8" (86 mm) Height 4-25/32" (120 mm) H2 2-15/32" (63 mm) Fastener Size (4),1/4" RH (6 mm) C/C 1-11/16" (43 mm) SWL 2250 lbs (1020...
    £159.71
    £216.46
    £159.71