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Glastron GT 205 SF (2011-)
(w/ 1 x 225-hp Volvo Penta 4.3 GXi)


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Brief Summary

Glastron’s GT 205 SF was built on a reputation of looks and affordability. We found it to be a good combination of features that a cross species boat is typically built on. As expected, this boat is built around the same hull as the GT 205, so we found the handling to be on the same par as its sister. We did find that Glastron has done more than just add under gunwale rod storage, when they decided to combine the fish and ski features, or as Glastron puts it, Ski and Fish.

Key Features

  • Bow panel includes: tilt switch, trolling motor plug
  • Aerated livewell
  • AM/FM Sirius satellite-ready stereo with 2 speakers & MP3 adaptor
  • Automatic bilge pump
  • Custom non-directional woodgrain steering wheel
  • Extended swim platform with 3-step ladder
  • Fiberglass floor with built-in footrests & floor drain
  • Glove box with stainless steel hinge & latch
  • Hinged ski locker lid
  • Navigation lighting
  • Reversible bow seats/fishing deck
  • Ski tow ring
  • Seating: 2 bucket seats/2 removable fishing seats/aft bench seating
  • Starboard net storage
  • Synthetic passenger grab handles
  • Tackle box trays
  • Two-tone deck stripe & tape hull graphics
  • Walk-thru curved windshield without full glass side wings
  • Specifications

    Length Overall 20' 8''
    6.30 m
    Beam 92''
    2.33 m
    Dry Weight 2,750 lbs.
    1,247 kg w/eng
    Tested Weight N/A
    Draft 31 1/2''
    .80 m
    - Draft Up N/A
    - Draft Down N/A
    - Air Draft N/A
    Deadrise/Transom 21 deg.
    Max Headroom open
    Bridge Clearance N/A
    Weight Capacity N/A
    Person Capacity N/A
    Fuel Capacity 35 gal.
    132 L
    Water Capacity none
    Length on Trailer N/A
    Height on Trailer N/A
    Trailer Weight N/A
    Total Weight
    (Trailer, Boat, & Engine)

    Prices, features, designs, and equipment are subject to change. Please see your local dealer or visit the builder's website for the latest information available on this boat model.

    Engine Options

    Std. Power Not Available
    Tested Power 1 x 225-hp Volvo Penta 4.3 GXi
    Opt. Power 1 x 190-hp MerCruiser 4.3L
    1 x 220-hp MerCruiser 4.3L MPI
    1 x 260-hp MerCruiser 5.0L MPI
    1 x 190-hp Volvo Penta 4.3 GL
    1 x 270-hp Volvo Penta 5.0 GXiC

    Test Results - Change Measurement Unit

    RPM MPH Knots GPH MPG NMPG Stat. Mile NM dBa
    610 2.9 2.5 1.0 3.0 2.6 93 81 66
    1000 4.9 4.3 1.4 3.6 3.2 114 99 70
    1500 6.7 5.8 2.2 3.1 2.7 97 85 71
    2000 8.6 7.5 3.7 2.3 2.0 73 64 85
    2500 19.7 17.1 5.1 3.9 3.4 121 106 84
    3000 27.7 24.1 6.5 4.3 3.7 134 117 85
    3500 32.8 28.5 8.3 4.0 3.4 124 108 88
    4000 38.5 33.5 10.4 3.7 3.2 117 101 90
    4500 43.7 38.0 13.5 3.2 2.8 102 89 92
    5000 49.4 42.9 17.5 2.8 2.5 89 77 96
    610 81 150 4.70 3.79 1.25 66
    1000 99 183 7.90 5.30 1.54 70
    1500 85 156 10.80 8.33 1.31 71
    2000 64 117 13.80 14.01 0.99 85
    2500 106 195 31.70 19.31 1.64 84
    3000 117 216 44.60 24.61 1.81 85
    3500 108 200 52.80 31.42 1.68 88
    4000 101 188 62.00 39.37 1.57 90
    4500 89 164 70.30 51.10 1.38 92
    5000 77 143 79.50 66.24 1.20 96

    All fuel consumption numbers are the total for all engines in the boat. Speeds are measured with Stalker ProSports radar gun or GPS. Fuel consumption (gallons per hour) measured with Floscan digital fuel-flow meter or by on-board factory-installed diagnostic instruments. Range is based on 90% of published fuel capacity. Sound levels determined using Radio Shack digital decibel meter on A scale. 68 dBA is the level of normal conversation. Time to plane is measured from start of acceleration to formation of rooster tail behind boat.

    Performance Chart

    Performance Chart

    Acceleration Times & Test Conditions

    Time To Plane 3.3 sec.
    0 to 30 8.5 sec.
    Ratio N/A
    Props 14.5 x 19p
    Load 2 person, 3/4 fuel, 23 gal. water, minimal gear
    Climate 93 deg.; 66% humid.; wind: 0-5 MPH; seas; 0-5 chop

    Glastron GT 205 SF (2011-) Overhead Photo


    Captain's Report

    Glastron GT 205 SF
    Our test boat was equipped with a 225-hp Volvo Penta 4.3 GXi that turned in a top speed of 48.9 mph. At that speed she was burning 17.5 gph, so her best cruise of 8.5 gph and 35.3 mph are attractive.

    Capt. Steve Says...

    First of all, I really liked the looks of this boat, particularly the great job Glastron did with the graphics. Of course, I think any boat looks good as long as she isn’t only white, but this GT 205 SF, like her sister the 205, seems to have raised the bar. If her comfort and handling are on par with the eye appeal, then we have a winner, especially with this base price.

    Glastron GT 205 SF
    The 205 SF comes pre-rigged for an optional trolling motor. Notice how the bow cushions are smaller. That is because they are reversible, to convert to casting decks.

    Handling and Performance

    The Glastron GT 205 SF test boat had a 225-hp 4.3 GXi Volvo Penta which took us to a top speed of 48.9 mph. At that speed, the 4.3 was burning 17.5 gph that gave her 35 gallon (132 L) fuel capacity a range of only 88 miles. However, pulled back to a more economical 3500 rpm, we were running at 35.3 mph. At that speed we were burning only 8.5 gph which increased our range to 131 miles. If you want to do even better, consider that at 3000 rpm our speed was 28 mph with a 6.5 gph fuel burn. Not much of a change in range, 5 more miles, but this gives yet another cruise choice if you want to save money for the short haul.

    Glastron GT 205 SF
    Our tests revealed two sets of cruise figures... one for best speed and another for best economy.

    The GT 205 SF’s handling characteristics were quite comfortable. Turns were met with a gentle slide that kept the “hanging on for dear life” in check. A 5-degree roll angle was sufficient to keep everyone planted in their seats, rather than tossed to the side.


    Once you get up on plane and reach cruise speed, start bringing the trim up. Look at your trim gauge and put the needle at about the ¾ mark. You won’t see a change in the spray coming from the side of the boat but you will feel a marked boost in speed and a more comfortable ride. Going too high ventilates the prop and you simply bring the trim back down a notch or two.

    Hole Shot

    On acceleration the GT 205 FS has about a 16-degree bow rise, but because Glastron builds in a gradual decrease to the sheer line as it reaches the bow, you’ll lose zero visibility. Our tests showed us reaching planing speed in 3.3 seconds and we cruised through 30 mph in 8.5 seconds.

    Bow Layout

    Fully forward, the bow cushion comes out to reveal a non-skid step that makes a great launching spot for diving off the bow. Re-boarding will have to take place at the stern as there is no beach boarding ladder at the bow. Under the side seats is storage that is self draining. All of the cushions are held in place with a pin and socket that I found a bit difficult to use. You have to get your fingers under the cushion which is held tight by the pin and socket. Some folks will have trouble utilizing this system.

    Glastron GT 205 SF
    The seat is taken from the aft seating area. The GT 205 SF comes pre-rigged for an optional trolling motor. Notice the casting deck created by flipping over the bow seats and adding a filler.
    Glastron GT 205 SF
    The X50DS gets mounted ahead of the starboard windshield. Then it can be swung around for viewing from the fishing chair.

    Bow Fishing Features

    Noticeable in the deck is a pedestal base for a fishing seat. The seat comes equipped with an extended pedestal. We’d like to see the addition of a table pedestal that can accommodate the same size base. Certainly adding it as an option would be helpful. All the way forward is a mount for the trolling motor. The mount is standard, but the motor is part of the fishing package that also includes a fish finder (add $1,571) viewed through the windshield so it can be rotated to face the forward seat. However the neatest feature of the bow arrangement is the seat cushions. By flipping them over and swapping sides, they reveal solid bases underneath. Now by adding a filler, you’ve created a casting deck. This filler also has a pedestal base to elevate the seat even more. Add another cushion and the whole area is a sunpad.

    Glastron GT 205 SF
    High marks to Glastron for the convenient storage compartment at the back of the bow seats, just below the seat backs. It’s also self draining so go ahead and put your cold drinks there, but it lends itself more towards the quick items such as sun tan lotion, glasses, or the hat that is about to blow off.

    Sitting forward in the bow seating is very comfortable. With your arm resting on the gunwales, your hand falls right to the stainless grab handle. This is a much better position than the handles on the side of the interior, as we usually see. It also looks better. The walkthrough windshield is held open with a snap strap. The windshield frame is stainless steel with supports that not only double as grab handles, but held my full weight.

    Cockpit Layout

    Glastron held to their reputation of quality by building the GT 205 SF with a full fiberglass cockpit liner. In the center of the cockpit is sole storage that is padded at the bottom for protecting your gear. The lid is ventilated to prevent mold from gathering on your skis while in storage.

    Glastron GT 205 SF
    The glove box is roomy and self draining. Note how deep it is as well. To the right you can see how the window supports run down the console for use as grab rails.

    Glastron provided dual wrap-around bucket seats that are open in the back for ventilation. Both seats swivel and slide fore and aft. Out test boat had the optional flip-up bolster for the captain (add $132). The helm had full instrumentation with Faria gauges with chrome bezels. Our test boat had the optional convenience package consisting of a depth sounder and hour meter (add $369). All gauges were mounted to a faux wood panel that was complemented by the wood steering wheel.

    Glastron GT 205 SF
    Note the amount of wood tone that really adds to the classy look of the GT 205 FS. The depth gauge is part of an optional convenience package that also includes an hour meter (add $369).

    Aft is three-across seating with open storage underneath. This is a great feature, for you can see at a glance what is in the storage compartments without having to open anything. In the center is a carry-on cooler in a slide tray with stainless steel tracks. The center seat cushion lifts out to reveal a non-skid step to the aft walkthrough.

    Glastron GT 205 SF
    At the stern, there are two compartments in the fishing deck. One holds tackle drawers, the other an aerated livewell.

    To either side of the aft seating are pedestal seats that are removable, so as to re-locate to the raised fishing decks in the bow and stern.

    Sunpad and Swim Platform

    Aft of the bench seating is a sun pad that will keep any sun worshippers happy. In the center is a pair of flip-open cushions that reveal a non-skid walkthrough for boarding and disembarking. In the center is another pedestal base for mounting the cockpit seat.

    Glastron GT 205 SF
    At the stern, it is a simple step down to the swim platform, and then the standard extended swim platform. A three-step reboarding ladder is mounted on the starboard side, right in line with the captain’s line of sight.

    Engine Compartment

    Under the sunpad is the engine compartment. I found the hatch to be a little difficult to open, but an easy cheat is to flip open the walkthrough cushions and push on them to open the hatch. Once inside, our test boat's installation of the Volvo Penta 4.3 GXi was not cramped and left plenty of space to the sides for storage, which was separated from the engine by cargo netting. The battery, to starboard, lacks a cover. Also lacking was a fire extinguisher discharge port to the engine compartment. Our boat was also fitted with the attractive XL Package that includes tilt steering, the convenience package of depth finder and hour meter, the fishing package of trolling motor and fish-finder, SS horn grill/speaker covers/drink holders/rubrail insert/thru-hull fittings/intake/exhaust vents, forward bow pull-up cleat, and full glass wings (add $2,439).

    Other Notable Options

    We wouldn’t want to leave off the snap-in carpet ($347) and might even consider the Sirius satellite radio (add $464). Engine choices range from our test power of 4.3 Volvo Penta GXi (add $1,933) to an upper end of a 260-hp 5.0 MPI EC MerCruiser (add $6,509). Lastly, there are no canvas packages included on the standard list. Prices very depending on desires and mounting points with or without the tower. Certainly at least a Bimini is a must. So what’s the bottom line? With a standard 190-hp 4.3L MerCruiser, you’re looking at around $25,800. That represents a serious value for a boat of this class with this list of features. Certainly there are options to be desired, but not everyone wants lots of options and having choices makes a good deal of sense. For our money, the Glastron GT 205 is a smart buy.

    Test Result Highlights

    • Top speed for the Glastron GT 205 SF (2011-) is 49.4 mph (79.5 kph), burning 17.5 gallons per hour (gph) or 66.24 liters per hour (lph).
    • Best cruise for the Glastron GT 205 SF (2011-) is 27.7 mph (44.6 kph), and the boat gets 4.26 miles per gallon (mpg) or 1.81 kilometers per liter (kpl), giving the boat a cruising range of 134 miles (215.65 kilometers).
    • Tested power is 1 x 225-hp Volvo Penta 4.3 GXi.

    Standard and Optional Features


    CD Stereo Standard

    Exterior Features

    Carpet: Cockpit Optional
    Swim Ladder Standard
    Swim Platform Standard
    Tower: Watersports Optional


    Bimini Top Optional
    Cockpit Cover Optional
    Full Canvas Optional


    Full Warranty Information on this brand coming soon!

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