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.
- 10
- 15
- 20
- 25
- 30
- 50
- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
- Price, high to low
- Date, old to new
- Date, new to old
Sort by:
- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
- Price, high to low
- Date, old to new
- Date, new to old
-
Vendor:Ronstan
Ronstan Swivel Cleat & Base [RF5]
- £56.21
£66.14- £56.21
- Unit price
- / per
Swivel Cleat & BaseSwivel cleat bases permit easy cleating and releasing from any angle.Sheave can be relocated to allow the control line to feed from belowComes complete with a 28mm(1-1/4") ball bearing sheave, small 'T-Cleat and the 'Fast Track' fairlead.Applications:Typically fitted to dinghy and...- £56.21
£66.14- £56.21
- Unit price
- / per
-
Vendor:Barton Marine
Barton Marine Size 2 Snatch Block w/Stainless Snap Shackle - 35mm Sheave [90301]
- £87.96
£97.73- £87.96
- Unit price
- / per
Size 2 Snatch Block with Stainless Snap Shackle - 35mm SheaveUnique to Barton, these are probably the smallest block of this type available.Important Note - Snatch BlocksWhen using small and medium snatch blocks on a toe rail, a bungee line should be attached to...- £87.96
£97.73- £87.96
- Unit price
- / per
-
Vendor:Harken
Harken 40mm Carbo Block Single w/Swivel Bracket [2637]
- £34.52
£39.02- £34.52
- Unit price
- / per
40mm Carbo Block Single with Swivel & BracketLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Features: Sheave Ø (mm): 40 mm Sheave...- £34.52
£39.02- £34.52
- Unit price
- / per
-
Vendor:Harken
Harken 40mm Carbo Air Double Swivel Block [2638]
- £66.78
£75.92- £66.78
- Unit price
- / per
40mm Carbo Air Double Swivel BlockLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave Ø (mm)40 mm Sheave Ø (in)1 9/16...- £66.78
£75.92- £66.78
- Unit price
- / per
-
Vendor:Harken
Harken 25mm Wire Block w/Shackle [300]
- £36.83
£41.55- £36.83
- Unit price
- / per
25mm Wire Block with ShackleLightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes.Specifications: Sheave: 25mm / 1in. Weight: 28g / 1oz. Shackle pin: 5mm / 3/16in, Maximum wire: 2mm / 3/32in. Maximum line: 4mm / 5/32in. Maximum...- £36.83
£41.55- £36.83
- Unit price
- / per
-
Vendor:Harken
Harken 22mm Double Micro Block w/Becket [227]
- £31.45
£35.37- £31.45
- Unit price
- / per
22mm Double Micro Block with BecketLow-friction Micro blocks are compact and lightweight. Specifications: Sheave: 22mm / 7/8in. Length: 64mm / 2.5in. Weight: 43g / 1.5oz. Maximum line: 6mm / 1/4in. Maximum working load: 159kg / 350lb Breaking load: 544kg/ 1200 lb- £31.45
£35.37- £31.45
- Unit price
- / per
-
Vendor:Ronstan
Ronstan Wire Block - Tubular Rivet Head w/Removable Nylatron Sheave - 45mm (1-3/4") Sheave Diameter [RF103]
- £37.89
£44.58- £37.89
- Unit price
- / per
Wire Block - Tubular Rivet Head w/Removable Nylatron® Sheave - 45mm(1-3/4") Sheave DiameterWire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire terminationFeatures: Flared cheeks to minimise chafing Removable sheavesApplications:Wire blocks suit halyards, vang and backstay...- £37.89
£44.58- £37.89
- Unit price
- / per
-
Vendor:Ronstan
Ronstan Series 40 All Purpose Block - Single Cheek [RF41811]
- £68.45
£80.54- £68.45
- Unit price
- / per
Series 40 All Purpose Block - Single CheekFeatures: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic...- £68.45
£80.54- £68.45
- Unit price
- / per
-
Vendor:Ronstan
Ronstan Wire Block - Tubular Rivet Head w/Nylatron Sheave - 25mm (1") Sheave Diameter [RF418]
- £20.25
£23.82- £20.25
- Unit price
- / per
Wire Block - Tubular Rivet Head w/Nylatron® Sheave - 25mm Sheave DiameterWire blocks have purpose designed narrow sheaves and grooves.Applications:Wire blocks suit halyards, vang and backstay applicationsMaterials: Grade 316 stainless steel cheeks Nylatron® sheave Specifications:Sheave Ø: 25mm(1")Max. Cable Ø: 3mm(1/8")M.W.L:450kg(990lbs)B.L.: 900kg(1,980lbs)Weight: 40kg(1.4oz)- £20.25
£23.82- £20.25
- Unit price
- / per
-
Vendor:Ronstan
Ronstan Series 40 All Purpose Block - Single Upright Lead [RF41171]
- £38.17
£44.91- £38.17
- Unit price
- / per
Series 40 All Purpose Block - Single Upright LeadLead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable...- £38.17
£44.91- £38.17
- Unit price
- / per
-
Vendor:Barton Marine
Barton Marine Size 0 20mm Plain Bearing Pulley Block Cheek [N00160]
- £7.66
£8.51- £7.66
- Unit price
- / per
Size 0 20mm Plain Bearing Pulley Block CheekThe 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 13gms (0.5oz).Suitable...- £7.66
£8.51- £7.66
- Unit price
- / per
-
Vendor:Barton Marine
Barton Size 3 45mm Plain Bearing Pulley Block Double Upright Block [N03250]
- £32.30
£35.88- £32.30
- Unit price
- / per
Size 3 45mm Plain Bearing Pulley Block Double Upright BlockThe size 3 Barton plain bearing blocks have 45mm (1 3/4" sheave size 3 block range incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fibre glass filled nylon and...- £32.30
£35.88- £32.30
- Unit price
- / per
-
Vendor:Schaefer Marine
Schaefer Series 7 Stand Up Ball Bearing Swivel Block - 2-3/8" 60mm [706-62]
- £165.89
£224.46- £165.89
- Unit price
- / per
Series 7 Stand Up Ball Bearing Swivel Block - 2-3/8" 60mmSingle stand up ball bearing block. Stand up spring keeps block upright when not in use. Stainless steel base spreads load out and may be used with 97-49 backing plate. (sold separately) Delrin(tm) ball...- £165.89
£224.46- £165.89
- Unit price
- / per
-
Vendor:Barton Marine
Barton Size 4 58mm Plain Bearing Pulley Cheek Block [N04160]
- £28.52
£31.70- £28.52
- Unit price
- / per
Size 4 58mm Plain Bearing Pulley Cheek BlockThe Size 4 Barton range of blocks has a 58mm (2 5/16″) sheave. They are of a rugged construction featuring high-grade molded side plates that are through-bolted and riveted for added strength and security. All load-bearing components...- £28.52
£31.70- £28.52
- Unit price
- / per
-
Vendor:Ronstan
Ronstan Series 40 Ball Bearing Block - Triple - Swivel Head [RF40300]
- £70.31
£82.71- £70.31
- Unit price
- / per
Series 40 Ball Bearing Block - Triple - Swivel HeadFeatures: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Features a swivel shackle head for full 360° rotation Sheaves running on Acetal or Torlon® ball bearings provide high performance...- £70.31
£82.71- £70.31
- Unit price
- / per
-
Vendor:Harken
Harken Midrange Single Block [1540]
- £110.56
£125.15- £110.56
- Unit price
- / per
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. Features: Sheave: 76mm/3" Maximum Line: 14mm/9/16" Max...- £110.56
£125.15- £110.56
- Unit price
- / per
-
Vendor:Ronstan
Ronstan Series 75 Core Block - Single [RF74100]
- £118.16
£139.01- £118.16
- Unit price
- / per
Series 75 Core Block - SingleCore Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal...- £118.16
£139.01- £118.16
- Unit price
- / per
-
Vendor:Harken
Harken 40mm Carbo Air Cheek Block [2644]
- £28.38
£32.22- £28.38
- Unit price
- / per
40mm Carbo Air Cheek BlockLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave Ø (mm)40 mm Sheave Ø (in)1 9/16 in...- £28.38
£32.22- £28.38
- Unit price
- / per
-
Vendor:Barton Marine
Barton Marine Size 2 Single Upright Block [N02150]
- £21.19
£23.55- £21.19
- Unit price
- / per
Size 2 Single Upright BlockPlain Bearing BlocksBarton plain bearing blocks have a precision molded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads.Specifications Sheave size: 35mm x 12mm Max rope diameter: 8mm Safe working load: 370kg...- £21.19
£23.55- £21.19
- Unit price
- / per
-
Vendor:SeaSure
SeaSure 8mm Snap Close Shackle - 5 Pack [04.59CRD]
- £4.60
£10.70- £4.60
- Unit price
- / per
8mm Snap Close Shackle - 5 Pack Simply push the shackle together, but once it's snapped shut, it won't come undone again.Specifications: Material: Nylon Package Size: 5 included- £4.60
£10.70- £4.60
- Unit price
- / per

