Throated Sail Cover Kit - Standard Sunbrella Color (Booms to 10')
SKU: 1151

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Sew it yourself! Sail Cover Kit for Booms to 10' lets you make your own mainsail cover. Cover and protect your mainsail when flaked with this throated sail cover. The sail cover fastens under the boom with Twist Lock fasteners with a snap button finish to provide a clean look and reduce chafe. Secure the cover around the mast with a marine zipper. This sail cover pattern features pre-plotted, long-lasting Sunbrella fabric for easy construction. Approximate construction time is 4 hours.

To determine which sail cover kit is right for your boat, measure the length of the boom (dimension "E") from the mast to its end (not including the mast width). Choose the kit with a length equal to or greater than the length of your boom.

Note: Maximum Boom Length - 10 Feet

Lazy Jack Slits: The mainsail cover pattern instructions include directions for creating lazy jack slits. If required, order an additional 6 feet of 1" acrylic binding tape (or make your own binding using any left-over scrap Sunbrella from the kit) and 3 to 4 Twist-Lock fasteners for each slit. Ordering 1 square foot of 2-3oz. leather should accommodate up to 8 slits.


  • 46" Sunbrella Marine Grade Fabric - Select color from drop down menu
  • #10 Finished Zipper 48" White Plastic Single Locking Pull
  • V-92 White UV Polyester Thread
  • Seamstick 3/8" Basting Tape for Canvas
  • Pearl Grey Cowhide 2-3oz Leather
  • Leechline Dacron 5/32"
  • Snap Fastener Installation Tool
  • Twist-Lock Fastener Eyelets
  • Twist-Lock Washers
  • Twist-Lock Fastener 2 Screw Studs
  • Snap Fastener Button Silver 11/64" Barrel (Nickel-Plated)
  • Sailrite Adhesive Backed Logo
  • Sail Cover Kit Instructions (All Sizes)

Required Tools (Not Included):

  • Sewing Machine
  • Scissors

Reference end of instructional video below for additional recommended items.

Please note: This item is non-returnable.


Sale Unit: EA


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How to Make Your Own Throated Sail Cover

How to make your own sail cover for your mainsail using a Sailrite Sail Cover kit.


Overall Rating : 5 5 Reviews

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Wayne Swesey
Verified Purchase

Very Pleased

This is the third main sail cover I've made over the years with different boats. They have all turned out well with simple instructions. All the gear you need is included and of high quality.

Donald DeVries
Verified Purchase

Great Project

Great project. The videos were especially helpful in learning how to sew seams etc. My challenge was using a brother light at sewing machine that stitches did not turn out as neat as if I would have used a heavy duty sewing machine. This inspired me to do more.

Richard Graef
Verified Purchase

great pattern great fit

Pat Jackson
Verified Purchase

Very pleased

Everything was shipped as advertised, promptly and complete. The "How to" video is a great help. I only wish there was a way to view the video offline since my sewing shop does not have an internet connection but the included instruction booklet is very helpful. I am quite pleased with my purchase.

John Williams
Verified Purchase

I’d do it again

Well worth the effort. Video really helped.

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