GM 20′

General Marine 20

The General Marine 20' is a modern down east hull design that incorporates the latest in modern building methods. It’s fully molded, modular, foam filled stringer system and penske board reinforced transom offers the stiffest, strongest method for reinforcing the hull, sole deck and transom, and because it’s all composite you don’t need to worry about water absorption. The hull comes with hand laid fiberglass, using epoxy based vinyl ester resin. The 20’ boat is built to tough New England standards and comes with a 10 year structural warranty. With her modern hull design she is stable and soft riding. The boat has molded in spray rails and flair in the bow to ensure you stay dry and comfortable.


Workboat finish with fiberglass plywood deck and rolled gel finish.

Complete molded fiberglass throughout , molded diamond non-skid decks, Portable head in console, forward seat with storage, anchor locker, port and stbd transom seats with storage and central, Port and Stbd in deck storage lockers.

  • LOA: 20’-1”
  • Beam: 8’-6”
  • Draft (boat only): 14”
  • Weight (dry, no engine): 2800 lbs
  • Max HP: 150
  • Min Hp: 70
  • Transom Height: 25”
  • Fuel Capacity: 55 gal
  • Speed: 19 Kts (max with 70 HP)
    14 Kts (cruise with 70 HP)
    30 Kts (max with 115 HP)
    22 Kts (cruise with 115 HP


  • Bow Rail
  • Baitwell System
  • Leaning Post
  • Pull Up Cleats and Bow Light Upgrade
  • Galvanized Roller Trailer
  • Tee-Top with Electronics Box, Rocket Launchers
    and Aft Spot Ligh
  • Frigid Rigid Cooler with cushions
  • Cored Hull
  • Colored Hull
  • Hydraulic steering
  • Dodger