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Technical Specifications

GRAHAM RADFORD 13.7

Sail specifications and key dimensions for this model.

13.70 m

LOA

Buy GRAHAM RADFORD 13.7 Sails

Mainsails from $1,992.02, custom-made for your boat

GRAHAM RADFORD 13.7 Full Specifications

General

Boat Type

Monohull

Dimensions

13.70 m

Length Overall

Sail & Rigging

I

17.77 m

J

4.98 m

P

15.79 m

E

5.92 m

Max Luff

17.07 m

Est. Forestay Length

18.45 m

Buy Sails For GRAHAM RADFORD 13.7

GRAHAM RADFORD 13.7 Mainsail

Mainsail pricing for the GRAHAM RADFORD 13.7 is based on the rig dimensions for this model and your selected build and finish options.

Short Batten Mainsail Dimensions

Sail Area52.35 m²
Sailcloth Weight8.50 oz
Mainsail Area Triangle46.74 m²
Upwind Area 10090.99 m²

Common Questions

After you complete your purchase this is what will happen:

  1. We prepare your Build Details — the measurements and sail construction — and send them to you to confirm.
  2. Once confirmed, the information goes to our sail designer, who creates a detailed design plan.
  3. The design is sent to you for review and approval.
  4. Once approved, we proceed with making the sail.

Pricing for GRAHAM RADFORD 13.7 sails is calculated from the stored dimensions for this model, the selected sail type, the chosen build, and any relevant optional extras. Final quotations should still be checked against the actual rig, hardware, and fit of the boat before production.

Cross-cut construction is typically the more straightforward cruising option, with strong day-to-day durability and simpler panel layout. Radial-cut construction uses load-aligned paneling where available, which generally improves shape retention and performance.

Yes. Optional extras are tied to the selected sail family and sail type, so only relevant options are shown in the configurator. Hardware, reefs, UV treatments, bags, ropes, and reinforcement packages appear only where they apply.

It upgrades the parts of the sail that carry the most load: the corner patches, the seam stitching, the reef points, and the head, tack and clew fittings. The standard Coastal Cruising build is specified for club sailing and recreational cruising. The Offshore build is specified for blue water passages and longer distance sailing. If you are planning ocean miles, or you simply want more margin built into the sail from the start, this is the option to add.

Published specifications are the starting point, not the final production sign-off. If your spar, furler, hardware, or previous sail measurements differ, use the quotation flow so the specification can be reviewed before an order is confirmed.

Why buy from us

Built in our loft, designed around your boat.

We believe a well-built sail should combine sound design, quality materials and skilled craftsmanship to deliver performance you can trust over time.

Robert Tasker
Robert Tasker

Founder

Fontaine Pajot Lucia 40 sailing with code zero set
Fontaine Pajot Lucia 40
Jeanneau 40 sail laid out on the loft floor
Jeanneau 40
Hunter 25 sail being sewn on the loft floor
Hunter 25

What that means in practice

Boat-specific specification

Built for your boat

Every sail is made to suit your boat, with build, cloth, shape and finish options selected around your priorities.

Designer-led loft

Backed by experience

Established in 2017, SEA Sailmakers is led by founders and sail designers with decades of sailmaking experience.

Materials and hardware

Quality materials, properly specified

We use proven sailcloth and hardware from trusted suppliers, matched to the sail type, intended use and performance brief.

After-purchase support

Covered by warranty

Our sails are backed by a clear warranty for added peace of mind after purchase.

Similar Sailboats

Verified Google Reviews

What our customers think of us.

Excellent

Based on 63 reviews

4.7 / 5

Google
Sim Peter

Sim Peter

1 month ago

Verified

5 stars Sales Services Robert and His team ,Sine and ladies 谢谢您

Axel Jepsen

Axel Jepsen

6 days ago

Verified

Salgsforløbet har været professionelt med hurtige svar og relevante spørgsmål i afklaringsfasen.

Andrew Brickman

Andrew Brickman

7 days ago

Verified

Communication between me the staff and Robert was always prompt and thorough.

BM Registers

BM Registers

10 days ago

Verified

Excellent and fast sail repair service. Very easy to contact and work with, including clear and precise communication. Fair price also! Highly recommended.

Yesim Sayin Taylor

Yesim Sayin Taylor

14 days ago

Verified

He was reliable, patient, and meticulous, guiding me through every measurement and then helping me check—and recheck—everything before production began.

Sim Peter

Sim Peter

1 month ago

Verified

5 stars Sales Services Robert and His team ,Sine and ladies 谢谢您

Axel Jepsen

Axel Jepsen

6 days ago

Verified

Salgsforløbet har været professionelt med hurtige svar og relevante spørgsmål i afklaringsfasen.

Andrew Brickman

Andrew Brickman

7 days ago

Verified

Communication between me the staff and Robert was always prompt and thorough.

Showing review position 1 of 6
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