Lewmar 40mm Control Block Double
Availability: Please give 24-36 business hours for our team to process your order. Once processed, lead time is 5-7 business days if item is in stock. Please call to check availability. Not available for expedited shipping. Usually Ships Within 20 Days
Shipping and Delivery
Enjoy free shipping on qualifying orders of $145 or more delivered within the 48 contiguous United States. Alaska, Hawaii, Puerto Rico, and other U.S. territories are excluded.
Delivery for qualifying free-shipping orders takes 8 to 10 business days.
Free shipping does not apply to:
- Orders containing only clearance items
- Customized special orders made to your detailed requirements
- Sails and boats
- Long tracks, spinnaker poles, whisker poles, and large tubes
- Oversized or heavy items, including items that require less-than-truckload (LTL) freight shipping
Standard Shipping
- UPS and FedEx Ground: Delivery usually takes 2 to 5 business days for in-stock orders.
- USPS: Allow an additional 3 business days beyond the standard shipping time.
- Saturday delivery: UPS and FedEx deliver on Saturdays only for overnight shipments sent on Friday. Additional charges may apply.
Oversized Items and Freight Shipping
Oversized items, such as whisker poles, spinnaker poles, and tracks longer than 8 feet, require freight shipping. The estimated shipping cost is $500, depending on the destination.
For freight deliveries, provide a commercial address, such as the marina, yacht club, or boatyard where your sailboat is located. The recipient must sign for the shipment upon delivery.
International Orders
International customers are responsible for all applicable import duties, fees, and taxes.
Lewmar 40mm Control Block Double
Lewmar 40mm Control Block Double
The Lewmar Control Block Double provides smooth, efficient handling of control lines with increased mechanical advantage in a compact form. Its twin-sheave design helps distribute load evenly, improving trimming efficiency and control. Manufactured from durable, marine-grade materials, the block delivers reliable, low-friction performance in demanding onboard environments. Ideal for control lines, fine-tuning systems, and performance-oriented deck layouts on cruising and racing yachts.
Features:
Precise Line Management
The Lewmar Control Block Double is engineered to deliver smooth, efficient handling of control lines where accuracy and responsiveness are essential. Designed for modern sailing systems, I provide dependable mechanical advantage and refined load management, supporting confident trimming and adjustment in both cruising and performance applications.
Compact Double-Sheave Design
Featuring a twin-sheave configuration, the Control Block Double enables increased purchase within a compact footprint. This efficient arrangement allows loads to be shared evenly across the system, reducing effort at the line while maintaining clean, organised deck layouts, ideal for control lines that require frequent, precise adjustment.
Marine-Grade Construction
Manufactured from durable, marine-grade materials, the Control Block Double is built to withstand the demands of the onboard environment. Precision-engineered sheaves and robust side plates ensure strength, dimensional stability, and resistance to wear, delivering consistent performance under repeated load and exposure to saltwater conditions.
Smooth, Reliable Performance
Designed to minimise friction and promote efficient rope flow, the block delivers predictable, controlled movement during trimming and easing. Its stable geometry helps maintain alignment and consistent load transfer, supporting accurate sail control and reducing fatigue during extended sailing or high-workload manoeuvres.
Technical Description
| Product Type | Hardware |
| Hardware Type | Blocks |
| Boat Type | Sail |
| Block Type | Double |
| Block Size | Double |
| Sheave Diameter | 40mm |
| Boat Length | Up to 30ft, 31-50ft, 51-70ft |
Lewmar 40mm Control Block Double
The Lewmar Control Block Double provides smooth, efficient handling of control lines with increased mechanical advantage in a compact form. Its twin-sheave design helps distribute load evenly, improving trimming efficiency and control. Manufactured from durable, marine-grade materials, the block delivers reliable, low-friction performance in demanding onboard environments. Ideal for control lines, fine-tuning systems, and performance-oriented deck layouts on cruising and racing yachts.
Features:
Precise Line Management
The Lewmar Control Block Double is engineered to deliver smooth, efficient handling of control lines where accuracy and responsiveness are essential. Designed for modern sailing systems, I provide dependable mechanical advantage and refined load management, supporting confident trimming and adjustment in both cruising and performance applications.
Compact Double-Sheave Design
Featuring a twin-sheave configuration, the Control Block Double enables increased purchase within a compact footprint. This efficient arrangement allows loads to be shared evenly across the system, reducing effort at the line while maintaining clean, organised deck layouts, ideal for control lines that require frequent, precise adjustment.
Marine-Grade Construction
Manufactured from durable, marine-grade materials, the Control Block Double is built to withstand the demands of the onboard environment. Precision-engineered sheaves and robust side plates ensure strength, dimensional stability, and resistance to wear, delivering consistent performance under repeated load and exposure to saltwater conditions.
Smooth, Reliable Performance
Designed to minimise friction and promote efficient rope flow, the block delivers predictable, controlled movement during trimming and easing. Its stable geometry helps maintain alignment and consistent load transfer, supporting accurate sail control and reducing fatigue during extended sailing or high-workload manoeuvres.
Technical Description
| Product Type | Hardware |
| Hardware Type | Blocks |
| Boat Type | Sail |
| Block Type | Double |
| Block Size | Double |
| Sheave Diameter | 40mm |
| Boat Length | Up to 30ft, 31-50ft, 51-70ft |
