What is the Overall Width and Diameter of a 235/80R16 Size Tire
Published 09/12/2018 >
Products Featured in This Question
Question:
Looking at a 235/80r16 tire 10ply for a trailer that I am custom building and I need to know the grown diameter of the tire for fender spacing reasons.
asked by: Caleb
Expert Reply:
The 235/80R16 size tire, like the Karrier ST235/80R16 Radial Trailer Tire # AM34903, will measure about 30.8" for overall diameter and have a section width of 9.25". This tire/wheel combo has an 8 on 6-1/2" bolt pattern. If you need a bolt pattern of 6 on 5-1/2" then you will want part # AM32764 instead.
Grown diameter is something that is related more to tires that are used for aircraft because it has to do with the landing gear. Since this isn't continually used with a vehicle or a trailer every little detail needs to be accounted for.
Trailer tire manufacturers don't take measurements for the grown diameter because it isn't as crucial because the tires won't flex enough to really make a difference. We recommend having at least 4" of clearance between the tire and your fender to account for any movement from the leaf springs. This would also be enough room to accommodate any slight flexing of the tire.

Product Page this Question was Asked From
Karrier ST235/80R16 Radial Trailer Tire with 16" White Wheel - 8 on 6-1/2 - Load Range E
- Trailer Tires and Wheels
- Tire with Wheel
- Radial Tire
- Load Range E
- 235/80-16
- 16 Inch
- M - 81 mph
- 8 on 6-1/2 Inch
- Steel Wheels - Powder Coat
- Kenda
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Do You Carry a 1 7/8" Ball for My Weigh Safe Hitch w/ Built-In Scale for 2" Hitch # WS66ZR?
- Shop: Andersen Trailer Jack Block - 8" Tall x 10" Wide
- Search Results: receiver
- Shop: Trailer Hitch
- Search Results: andersen trailer hitch lock
- Search Results: camco
- Search Results: 7 pin trailer tester
- Search Results: anderson jack
- Search Results: propane quick connect
- Search Results: anderson
- Shop: ThinLine LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 15 Diodes - Clear Lens
- Shop: Andersen Leveling Blocks with Magnetic Base for Trailers and RVs - 8" Tall - 6K - Qty 6
- Shop: Andersen Camper Leveler - 4 Piece Kit with Storage Bag
- Shop: Brandmotion FullVUE Digital Rear View Mirror with HD Backup Camera - Universal
- Shop: Trailer Wiring
- Shop: Hot-Line LED Trailer Light Bar - Stop, Turn, Tail - Submersible - Red Lens
- Shop: Weigh Safe Flap Jack RV Stabilizing Block and Shoe Scraper w/ Storage Bag
- Shop: Brake Controller
- Shop: Suspension Enhancement
- Video: All About the Load Resistor Kit for LED Turn Signals
- Q&A: Troubleshooting Hyper Flashing Trailer Lights on Mercedes-Benz Sprinter Van
- Q&A: How to Test Brake Controller without Trailer Connected
- Shop: Vehicle Tow Bar Wiring
- Video: Tow-Rax Removable Wheel Chock w/ Wood Screws Review
- Q&A: Bearing Kit For Curt/Lippert 7,000 lb Trailer Axle
- Q&A: Weld-On Spindle That Matches DeeMaxx 12" Hub/Rotor Assembly
- Q&A: Is There Differnce Between Trailer Grease Seals 10-36 and GS-2250DL
- Q&A: Best Option to Upgrade from Bias Tire Size 7.50-16 to Radial Trailer Tire
- Video: An In-Depth Look at the CE Smith Front/Center/Rear Hanger Bracket for Double-Eye Springs
- Video: A Closer Look at the Demco Trailer Stake Pocket Spare Tire Mount with 4" Offset