Description
13 Foot (3.95 m) Aluminum Utility Skiff Plans
The 13 Foot (3.95 m) Aluminum Utility Skiff is a compact, stable, and versatile welded aluminum boat designed for fishing, recreation, and general utility use. With a 69″ (1.75 m) beam, progressive deadrise, and seven integrated storage lockers, this design offers a practical combination of stability, usable interior space, and efficient performance.
The hull is designed for 10–40 HP outboard engines and can carry up to three persons. Its compact dimensions make the boat easy to handle and transport, while the deep interior and generous storage capacity make it especially useful for fishing and day-to-day recreational boating.
Main Features
- 13′ (3.95 m) welded aluminum utility skiff
- 69″ (1.75 m) beam
- Progressive V-bottom hull
- 9.5° deadrise at the stern
- Seven integrated storage lockers
- Maximum capacity: 3 persons
- Designed for 10–40 HP outboard engines
- 20″ (508 mm) long-shaft transom
- Portable fuel tank
- Design Category C
Technical Specifications
- Overall Length: 13′ (3.95 m)
- Beam Width: 69″ (1.75 m)
- Floor Dimensions: 65″ x 39 1/8″ (1650 x 994 mm)
- Draft: 8″ (20 cm)
- Maximum Draft at Waterline: 9 7/8″ (25 cm)
- Interior Depth: 25 9/16″ (65 cm)
- Side Height at Stern (bottom to gunwale): 26 9/16″ (675 mm)
- Side Height at Bow (bottom to gunwale): 33 7/16″ (850 mm)
- Deadrise at Stern: 9.5°
- Deadrise at 1.5 m (4′ 11″) from Stern: 12°
- Deadrise at 3.0 m (9′ 10″) from Stern: 20.5°
- Dry Hull Weight: 540 lbs (245 kg)
- Fuel System: Portable Fuel Tank
- Maximum Persons: 3
- Design Category: C
- Transom Inclination Angle: 12°
- Transom Height: 20″ (508 mm) – Long Shaft (L)
- Recommended Outboard Engine: 10–40 HP
- Storage: 7 Lockers
Progressive V-Bottom Hull
The hull uses a progressive deadrise that increases toward the bow. The deadrise is 9.5° at the stern, 12° at approximately 1.5 m (4′ 11″) from the stern, and 20.5° at approximately 3.0 m (9′ 10″) from the stern.
This hull geometry provides good stability at lower speeds and at rest while the sharper forward sections help provide a smoother ride when the boat encounters chop.
Storage and Interior
The boat includes seven storage lockers, providing useful space for fishing equipment, safety gear, batteries, tools, ropes, and other onboard accessories.
The floor measures 65″ x 39 1/8″ (1650 x 994 mm), while the 25 9/16″ (65 cm) interior depth creates a practical and secure cockpit for up to three persons.
Aluminum Construction
Imperial Version
- Bottom, sides, and seats: 1/8″ aluminum
- Frames, stringers, and transom: 5/32″ aluminum
Metric Version
- Bottom, sides, and seats: 3 mm aluminum
- Frames, stringers, and transom: 4 mm aluminum
Construction Method
The boat is designed as a fully welded aluminum structure. The hull uses 4 mm frames, stringers, and transom components combined with 3 mm bottom, side, and seating panels.
This construction provides a strong yet practical structure for a compact utility skiff. Accurate fitting, tack welding, dimensional checks, and a controlled welding sequence are recommended to maintain hull geometry and minimize heat distortion.
Difficulty Level
Difficulty level: Medium.
The project is suitable for DIY builders with basic to intermediate aluminum fabrication and welding experience. Previous professional boat-building experience is not required, but the builder should be comfortable cutting, fitting, and welding aluminum components.
Power and Transom
The skiff is designed for a 20″ (508 mm) long-shaft outboard engine. The transom has a 12° inclination angle and the recommended engine range is 10–40 HP.
This allows the boat to be equipped with a smaller engine for economical use or a more powerful outboard where higher loads and stronger performance are required.
Perfect For
- Lake and river fishing
- Recreational boating
- Inland and sheltered waters
- Fishing with generous onboard storage
- General utility use
- DIY aluminum boat builders
- Outboard engines from 10 to 40 HP
Instant download available after purchase – start building today!
Don’t have aluminum welding experience?
No problem. Many of our boat designs can be adapted for different construction materials, including aluminum, steel, plywood, HDPE, wood, and fiberglass.
If you like this boat but would prefer to build it using another material, let us know. We can advise you on the best option or prepare a modified version of the plans for your project.
Material changes may require structural adjustments, so we recommend contacting us before starting the build.
Contact us about a custom version
Prefer email? Write to us at info@aluminumboatplans.com
