Express 340
34' EXPRESS CABIN
The new Express 340 blends classic design with modern convenience for a next-generation premium offshore cabin boat. Designed for diehard anglers and the couple that wants to cruise with friends and family, the 340 is a home away from home overflowing with versatile fishing features and luxurious appointments. Climb aboard the ultimate boat for long escapes and offshore adventures.
Photo Gallery
Grady-White Boats Express 340 34-foot Express Cabin aerial starboard view running
Grady-White Boats Express 340 34-foot Express Cabin aerial view bow on running
Grady-White Boats Express 340 34-foot Express Cabin starboard side running
Grady-White Boats Express 340 34-foot Express Cabin starboard side cruising
Grady-White Boats Express 340 34-foot Express Cabin port side cruising
Grady-White Boats Express 340 34-foot Express Cabin starboard side at sunset
Grady-White Boats Express 340 34-foot Express Cabin galley
Grady-White Boats Express 340 34-foot Express Cabin boat head
Grady-White Boats Express 340 34-foot Express Cabin boat cabin interior showing galley and aft berth
Grady-White Boats Express 340 34-foot Express Cabin boat cabin interior showing galley and aft berth
Grady-White Boats Express 340 34-foot Express Cabin microwave
Grady-White Boats Express 340 34-foot Express Cabin cockpit
Grady-White Boats Express 340 34-foot Express Cabin foldaway aft bench seat
Grady-White Boats Express 340 34-foot Express Cabin 166-qt. insulated fish box
Grady-White Boats Express 340 34-foot Express Cabin 32-gal. livewell
Grady-White Boats Express 340 34-foot Express Cabin Aft facing deluxe cushioned seat w/bolster flipped up
Grady-White Boats Express 340 34-foot Express Cabin Aft facing deluxe cushioned seat w/bolster flipped down
Grady-White Boats Express 340 34-foot Express Cabin fold-down counter
Grady-White Boats Express 340 34-foot Express Cabin bar with retracting storage door
Grady-White Boats Express 340 34-foot Express Cabin bolster seat step up
Grady-White Boats Express 340 34-foot Express Cabin electric cockpit grill
Grady-White Boats Express 340 34-foot Express Cabin hardtop
Grady-White Boats Express 340 34-foot Express Cabin SureShade® cockpit shade
Grady-White Boats Express 340 34-foot Express Cabin deluxe wraparound bench seat
Grady-White Boats Express 340 34-foot Express Cabin helm captains chair
Grady-White Boats Express 340 34-foot Express Cabin boat helm overall
Express 340 Main Specifications
Beam Amidships
11'7" (3.53 m)
Center Line Length w/o Engines
33'6" (10.21 m)
Bridge Clearance
9'11" (3.02 m)
Cockpit Depth
29" (0.74 m)
Hull Draft
27" (0.69 m)
Transom Deadrise
20 degrees (SeaV2® progression)
Maximum HP
1050 (783 kW)
Fuel Capacity - Standard
340 gal. (1287 l)
Weight w/o Engines
TBD
Express 340 Features & Options
Select camera icons where available to view feature photos
Denotes feature as trademarked, exclusive, patented, or patent pending
Automatic bilge pumps (2) (total 3000 GPH) (11,356 LPH)
Basic flotation
Bow rail - 316 grade stainless steel
Composite stringer system & transom - water impervious
Fire extinguisher port
Nonskid fiberglass liner
Self-bailing cockpit w/cockpit drains (6)
Stainless steel through-hull fittings
Yamaha Siren Marine Connected Boat® Monitoring System
Accessory outlet - 5V USBs (2) (1 for V-berth & 1 for aft berth)
Air conditioning - 18,000 BTU
Berth - aft double berth w/memory foam topper cushions
Berth - forward vee berth w/memory foam topper cushion & adjustable backrest
Carbon monoxide detector
Composite teak & holly sole
Door - lockable, sliding acrylic cabin door
Forward hatch - low profile acrylic hatch w/retractable screen & shade
Galley - port galley w/sink, Dekton® countertop & backsplash, and indirect lighting
Head - enclosed ventilated head area w/lighting, Dekton® countertop, sink, shower w/fold-down seat, storage cabinet & VacuFlush® marine head w/freshwater supply, 10-gallon (38 l) holding tank, overboard discharge & deck pump out
Lighting - cabin nightlight under step up to V-berth
Lighting - indirect lighting throughout
Lighting - reading lamps (2) (1 for V-berth & 1 for aft berth)
Lighting - skylight
Microwave oven - 120V (60Hz)
Refrigerator - stainless steel
Storage - aft berth storage behind backrest
Storage - bulk floor storage
Storage - handcrafted cabinetry w/fluted inlays
Storage - under forward vee berth compartments
Stove - electric glass top
Table - oak dinette w/adjustable stainless steel base
TV - 24" LED flat screen w/HDMI inlet
Water heater - 6-gallon (22.7 l), 120V
Water tank - 45-gallon (170.3 l) freshwater
100% hand laid SeaV² hull & deck
Accessory outlet - 5V duplex USB port & starboard
Accessory outlet - 12V
Anchor windlass w/remote switches at helm & windlass
Batteries (4) w/battery select switches (2) & charger system (1)
Bow thruster
Cleats - flush mount (pull up)
Cockpit bolsters
Cockpit freshwater shower w/hot & cold mixer (recessed)
Cockpit lights - blue LED
Cockpit side doors - port & starboard w/boarding ladder
Companion grab rail
Compass
Cutting board
Deck hardware - 316 grade stainless steel through-bolted
Dockside power w/galvanic isolator
Dockside water inlet
Drink holders - stainless steel (13)
Engine flush system w/hose attachment aft (one per engine)
Factory engine pre-rigging
Fender cleats - Phender Pro™ quick-release
Fish box - 166-qt. (157 l) aft insulated fish box w/lights (2) & ob drain
Fish box - 87-qt. (82 l) aft insulated fish box w/recessed faucet & ob drain
Flush mount electronics area
Footrest - helm
Fuel capacity - 340 gal. (1287 l) (port & starboard fills)
Generator - 8 kW diesel, 13-gallon (49.2 l) fuel capacity w/water inlet shutoff valve
Hardtop - AV²® enclosure w/painted aluminum frame, hatch w/screen & shade, electromechanically operated center vent, storage net, LED spreader lights, bi-colored (blue and white) LED recessed lights (6), horizontal hanging rod holders (4), side mounted rod holders (4), and Clear2Sea™ side & drop curtains
Hydraulic trim tabs w/indicator & retractor
Integrated outboard mounting system w/swim platform & ladder
International lighting
Livewell - 30-gallon (114 l) starboard insulated raw water livewell w/light, full column distribution inlet & ob drain (1100 GPH pump) (4164 LPH)
Phone charger (wireless) - helm mounted
Rod holders - cockpit (4)
Rubrail - high density PVC w/stainless steel insert
Seating - aft facing mezzanine seat w/flip-up bolster, fold-down Dekton® countertop, pull out footrest, tackle storage, drawer storage, and bulk storage w/USB and 120V outlets
Seating - electromechanically adjustable helm seat w/flip-up bolster and fold down armrests
Seating - foldaway aft bench seat w/cushion
Seating - wraparound companion bench seat w/electrically adjustable table
Steering - Helm Master® EX w/Full Maneuverability
Steering wheel - 316 grade stainless steel w/knob
Stereo system w/waterproof touch screen display, AM/FM tuner & Wi-Fi & Bluetooth® connectivity; speakers w/LED lights - hardtop (4), cabin (2)
Stern eyes - 316 grade stainless steel
Storage - aft starboard tackle box storage
Storage - forward anchor locker w/rode storage and pressurized raw water washdown
Storage - helm storage drawer
Storage - port drawer w/5 gal. bucket
SureShade® electrically retractable cockpit shade w/Sunbrella® canvas (oyster)
Washdown - freshwater
Washdown - pressurized raw water w/hose
Wet bar w/Dekton® countertop, molded fiberglass sink, and stainless steel storage drawers (3) (starboard)
Windshield - full protection glass w/electromechanically operated center vent
Windshield wipers - pantograph w/washer (2)
Air conditioning - 18,000 BTU at helm
CE certification package (European Conformity)
Freezer/refrigerator unit w/digitally controlled thermostat for aft fish box w/ob drain
Grill - 1300W (in lieu of starboard cockpit sink)
Hardtop color - underside of fiberglass hardtop (requires matching gelcoat hull)
Hull color - Celestial Blue, Coastal Fog, Ocean Mist, or Sage Gray gelcoat
International AC electrical conversion - 220V (50Hz)
Lighting - underwater blue LED (4)
Outrigger kit - 18-ft. (5.5 m) crank hardtop mounted stainless steel outriggers w/carbon fiber poles
Refrigerator - stainless steel (replaces wet bar drawers)
Seating - forward deck sun cushions w/diamond quilting
Stabilizer - Seakeeper® 3 gyroscopic stabilization system
Express 340 Performance Data
XTO Offshore® 450
Twin
Top Speed: 52.5 MPH @ 6000 RPM
Optimum Cruise: 29.5 MPH @ 3800 RPM
GPH at Optimum Cruise: 28.6
MPG at Optimum Cruise: 1.03
CLASSIC WHITE
Standard
350 Yamaha Four-Stroke
Triple
Top Speed: 57.2 MPH @ 5950 RPM
Optimum Cruise: 30.4 MPH @ 3500 RPM
GPH at Optimum Cruise: 27.2
MPG at Optimum Cruise: 1.12
CLASSIC WHITE
Standard
XTO Offshore® 450
Twin
Engine Size
5.6L
Test Date
10/22/2025
Prop Size
16 5/8 X 19 XTO SDS
Weight as Tested
17494 lb. (including persons, fuel, water, gear, engines & accessories)
Hardtop
Yes
Bow Pulpit
No
Bottom Paint
No
Optimum Cruise
29.5 MPH @ 3800 RPM
| RPM | MPH | GPH | MPG |
|---|---|---|---|
| 1000 | 6.0 | 3.6 | 1.67 |
| 1500 | 8.4 | 5.8 | 1.45 |
| 2000 | 9.8 | 9.6 | 1.02 |
| 2500 | 10.8 | 14.6 | 0.74 |
| 3000 | 15.3 | 20.5 | 0.75 |
| 3500 | 23.6 | 24.8 | 0.95 |
| 3800 | 29.5 | 28.6 | 1.03 |
| 4000 | 32.1 | 31.6 | 1.02 |
| 4500 | 37.9 | 41.9 | 0.90 |
| 5000 | 43.1 | 53.4 | 0.81 |
| 5500 | 48.1 | 67.0 | 0.72 |
| 6000 | 52.5 | 78.3 | 0.67 |
350 Yamaha Four-Stroke
Triple
Engine Size
4.3L
Test Date
8/19/2025
Prop Size
15 x 20 SWS II SDS
Weight as Tested
17485 lb. (including persons, fuel, water, gear, engines & accessories)
Hardtop
Yes
Bow Pulpit
No
Bottom Paint
No
Optimum Cruise
30.4 MPH @ 3500 RPM
| RPM | MPH | GPH | MPG |
|---|---|---|---|
| 1000 | 6.3 | 3.8 | 1.66 |
| 1500 | 8.6 | 6.3 | 1.37 |
| 2000 | 10.3 | 10.5 | 0.98 |
| 2500 | 12.4 | 17.6 | 0.70 |
| 3000 | 17.7 | 23.2 | 0.76 |
| 3500 | 30.4 | 27.2 | 1.12 |
| 4000 | 37.1 | 35.7 | 1.04 |
| 4500 | 42.6 | 44.0 | 0.97 |
| 5000 | 48.1 | 58.2 | 0.83 |
| 5500 | 53.5 | 81.9 | 0.65 |
| 5950 | 57.2 | 91.5 | 0.63 |
XTO Offshore® 450
Twin
Engine Size
5.6L
Test Date
10/22/2025
Prop Size
16 5/8 X 19 XTO SDS
Weight as Tested
17494 lb. (including persons, fuel, water, gear, engines & accessories)
Hardtop
Yes
Bow Pulpit
No
Bottom Paint
No
Optimum Cruise
29.5 MPH @ 3800 RPM
| RPM | MPH | GPH | MPG |
|---|---|---|---|
| 1000 | 6.0 | 3.6 | 1.67 |
| 1500 | 8.4 | 5.8 | 1.45 |
| 2000 | 9.8 | 9.6 | 1.02 |
| 2500 | 10.8 | 14.6 | 0.74 |
| 3000 | 15.3 | 20.5 | 0.75 |
| 3500 | 23.6 | 24.8 | 0.95 |
| 3800 | 29.5 | 28.6 | 1.03 |
| 4000 | 32.1 | 31.6 | 1.02 |
| 4500 | 37.9 | 41.9 | 0.90 |
| 5000 | 43.1 | 53.4 | 0.81 |
| 5500 | 48.1 | 67.0 | 0.72 |
| 6000 | 52.5 | 78.3 | 0.67 |
350 Yamaha Four-Stroke
Triple
Engine Size
4.3L
Test Date
8/19/2025
Prop Size
15 x 20 SWS II SDS
Weight as Tested
17485 lb. (including persons, fuel, water, gear, engines & accessories)
Hardtop
Yes
Bow Pulpit
No
Bottom Paint
No
Optimum Cruise
30.4 MPH @ 3500 RPM
| RPM | MPH | GPH | MPG |
|---|---|---|---|
| 1000 | 6.3 | 3.8 | 1.66 |
| 1500 | 8.6 | 6.3 | 1.37 |
| 2000 | 10.3 | 10.5 | 0.98 |
| 2500 | 12.4 | 17.6 | 0.70 |
| 3000 | 17.7 | 23.2 | 0.76 |
| 3500 | 30.4 | 27.2 | 1.12 |
| 4000 | 37.1 | 35.7 | 1.04 |
| 4500 | 42.6 | 44.0 | 0.97 |
| 5000 | 48.1 | 58.2 | 0.83 |
| 5500 | 53.5 | 81.9 | 0.65 |
| 5950 | 57.2 | 91.5 | 0.63 |
Express 340 Overhead
Select the hotspots below to learn more about the Express 340 features.
Videos
Grady-White Express 340: A new legend is born.