Design and Construction
The hull and deck are fiberglass sandwich structures with balsa cores. The builder used this construction to improve the indoor climate below. Because the core extends across both major molded surfaces, any later work that penetrates the laminate requires special care to keep water away from the balsa.
At a displacement of 1,160 pounds, the Holder 20 carries 260 pounds of lead and has a ballast ratio of 22 percent. Its 7.83-foot beam produces a length-to-beam ratio of 2.59. The displacement-length ratio is 83, placing the design in the “ultra light racers” category, while the bottom has about 161 square feet of wetted surface.
Rig and Handling
The Holder 20 has a fractional rig and an unusually powerful sail plan for its size. Its SA/D is 28.1 with the ISO reference sail and rises to 32.3 with a 135 percent genoa. The design carries more rig than 100 percent of similar sailboats, marking it as significantly overrigged.
The main, jib, and spinnaker halyards are each 64.4 feet long and 5/16 inch in diameter. The sheets are sized for their loads: the mainsheet is 50.9 feet of 3/8 inch line, and the genoa sheet is 20.3 feet of the same diameter.
Depending on load, the drop keel keeps draft between roughly 0.98 and 1.28 feet, allowing the boat to sail close to the beach. An outboard motor is often used for docking and maneuvering. The theoretical displacement-hull speed is 5.7 knots.
The capsize screening value is 2.99, which would bar the Holder 20 from ocean races. Its immersion rate is about 503 pounds per inch, so trim changes are quickly apparent in such a light hull. Load management therefore matters more than it does aboard heavier cruisers.
Accommodations and Comfort
Below, the Holder 20 has one cabin and four berths. Headroom is below average for the type, as might be expected in a 20-foot hull devoted partly to racing sail area and a lifting keel rather than standing room.
The Motion Comfort Ratio is 6.0. That low figure, together with the boat’s ultra-light displacement and modest ballast, describes a lively rather than settled motion at rest or anchor.
Ownership and Refit Considerations
The lifting keel and reliance on an outboard for docking suit a trailerable coastal boat. The main ownership concern is the balsa-cored construction. Through-hulls, deck-hardware fastenings, repairs, and any other work that penetrates the laminate must be completed so water can’t reach the core. If exposed balsa is left unsealed, it may become saturated and lead to delamination.
Owners adding or relocating deck fittings therefore need to respect the sandwich laminate and seal every penetration carefully.
The Verdict
The Holder 20 is a sharply rigged, very light 20-footer that trades comfort and headroom for speed and beachability. Its balsa sandwich construction is the one ownership caveat: respect every penetration, and it remains a quick, simple coastal sailer.
Pros
- Significantly overrigged fractional sloop, with a genoa SA/D of 32.3
- Lifting drop keel provides roughly 0.98 to 1.28 feet of draft for beach access
- Balsa-cored hull and deck improve the below-decks climate
Cons
- Balsa core requires careful sealing at every laminate penetration
- Below-average headroom and a low Motion Comfort Ratio of 6.0
- Capsize screening value of 2.99 excludes it from ocean racing
