Rig-Rite Booms Page

In its' over 50-year production history, Rig-Rite has built spars for and provided OEM spar and rigging packages to virtually every boat builder in the American North East, and many further afield.

Complete Boom Section specifications are listed below.
Click on individual Boom Sections to see hardware specific to those Sections. For more generic parts, see General Spar Parts.

Most common Boom replacement parts are listed under the Boom Section that they attach to. To find the part you need, first, determine which Boom Section the part attaches to by measuring the Section. Then, click on that Section. Descriptions, specifications, and, in many cases photos are displayed there.
If a part you need is not listed on-site, please forward a sketch or photo of the part with measurements and full details including which Boom Section the part attaches to. If you unable to determine which Boom Section you have from the details given on-site, we will require a tracing of the Boom Section with measurements.

Some of the Sections below are also used for Masts, See Rig-Rite Mast Sections.


Rig-Rite Boom Sections & Parts
Rig-Rite #2 Boom Section Measurements: (OD) 2.75" x 1.75" (70mm x 44mm) 2717 Wall Thickness: .095" Weight/ft.: .89 lbs. Moments of inertia: Ixx = .55", Iyy = .27" Circumference: 7 3/16" Alloy: 6063-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Standard Boom Lengths: 8', 8'10", 10'1", 10'4", 11'9" Common Boom usage: Bristol Corinthian 19; Cape Dory Typhoon; O'Day Javelin;
Rig-Rite #4 Boom Section Measurements: (OD) 2.84" x 2.12" (72mm x 54mm) 2921 Wall Thickness: .085" Weight/ft.: .96 lbs. Moments of inertia: Ixx = .73", Iyy = .36" Circumference: 7 7/8" Alloy: 6063-T6 Sail slides: 3/8" round slugs (A017, A117) or 3/8" boltrope Standard Boom Lengths: 11' Common Boom usage: Cape Dory 25*; Kenner Kittiwake 23';
Rig-Rite #4F Boom Section Measurements: (OD) 2.88" x 2.25" (73mm x 57mm) 2823 Wall Thickness: .065" Weight/ft.: .74 lbs. Moments of inertia: Ixx = .96", Iyy = .31" Circumference: 8" Alloy: 6063-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Standard Boom Lengths: N/A
Rig-Rite #5 Boom Section Measurements: (OD) 3.75" x 2.25" (95mm x 57mm) 3723 Wall Thickness: .100" Weight/ft.: 1.3 lbs. Moments of inertia: Ixx = 1.5", Iyy = .63" Circumference: 9 5/8" Alloy: 6063-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Standard Boom Lengths: 7'6", 8'5", 9'6 1/2", 11'3", 12'8" Common Boom usage: Bristol 24, 27; O'Day 27; Sea Sprite;
Rig-Rite #4025 Boom Section Measurements: (OD) 4.00" x 2.50" (102mm x 63.5mm) Wall Thickness: .100" Weight/ft.: 1.4 lbs. Moments of inertia: Ixx = ", Iyy = ." Circumference: 10 5/16" Alloy: 6063-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Standard Boom Lengths: 8'11", 13'5" Common Boom usage: Pearson 22, Electra, Ensign, Triton*, 419K (mizzen), 422K (mizzen), 424K (mizzen);
Rig-Rite #6 Boom Section Measurements: (OD) 4.50" x 2.75" (114mm x 70mm) 4528 Wall Thickness: .105" - .110"r Weight/ft.: 1.5 lbs. Moments of inertia: Ixx = 2.7", Iyy = 1.2" Circumference: 11 1/2" Alloy: 6063-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Standard Boom Lengths: 10'8", 11', 12'9", 13'9", 16'6" Common Boom usage: Bristol 29.9, 30, 32; Mystic 30; O'Day 30; Pearson 30; Sabre 28, 30; Tartan 30;
Rig-Rite #7 Boom Section Measurements: (OD) 5.50" x 3.38" (140mm x 86mm) 5534 Wall Thickness: .120" Weight/ft.: 2.29 lbs. Moments of inertia: Ixx = 6.95", Iyy = 2.47" Circumference: 14 1/4" Alloy: 6061-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Standard lengths: Common Boom usage: EO 32; Sabre 32, 34*;
Rig-Rite #6040 Boom Section See also, Rig-Rite #6040X Measurements: (OD) 6.00" x 4.00" (160mm x 102mm) Wall Thickness: .130" Weight/ft.: 2.86 lbs. Moments of inertia: Ixx = 11.70", Iyy = 5.79" Circumference: 16 9/16" Alloy: 6061-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Standard lengths: 15', 20' Common Boom usage: Sabre 42, 425*;
Rig-Rite #8349 Boom Section Measurements: (OD) 8.25" x 4.88" (210mm x 124mm) Wall Thickness: .170" Weight/ft.: 4.77 lbs. Moments of inertia: Ixx = 42.13", Iyy = 16.10" Circumference: 22 3/4" Alloy: 6061-T6 Sail slides: 3/4" flat slides (A006M) Standard lengths: 26', 32'3" Common Boom usage:

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Spars, Rigging, and Hardware for Sailboats