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Why should I buy a spread axle flatbed?

Next year I want to start hauling flatbed freight.

I am looking to buy a trailer and not rent one. 90% of the flatbeds I see are spread axle. I was looking at buying a trailer with a sliding rear axle.

Please tell me the difference between:

Fixed Spread

Fixed front, Rear Sliding axle

Tandems

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I live on the east cost, and plan on running the NE and SE, no farther west then I-25

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I do plan on wide singles.

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the difference is in weights that those axle configurations can carry and spreads are not legal in canada for any more than 20,000lbs (iirc) so you'd need a closed or closable tandem for 34,000lbs+. a closed tandem cannot carry over 34,000lbs (most states) but may be permitted to around 52,000lbs. a spread is 40,000 lbs and not over. with a spread you may gross up to 86,000lbs in some of the states (by bridge formula). with the sliding rear (or front axle) the weight allowable will depend on the axle spacing.

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well there is also a canadian spread witch is a 7' spread instead of the 10' spread we use here in the US. It's 3 or 4 of the western provinces of canada that don't recognize a 10' spread.

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That sliding spead your going to add some extra weight. If you don't go to Canada I wouldn't even mess with a sliding spread. If your planning on running super singles on this trailer these 2 states Washington and South Dakota will not give you 40,000 pounds on a spread axle unless they've changed in the last 6 months

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WA, CA, CAN, are not a problem.

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Did WA change the law lately cause I live there and as of 6 months ago you couldn't put 40,000 lbs on a spread with super singles and be legal now duals you could cause you proper tire width with duals

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I mean I do not plan on heading to that area.

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Cause it will make your life a whole lot easier

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Pros: Easier to distribute weight when loading, don't have to be so accurate about load placement. Makes trailer a little stronger for center loading heavy loads. If you haul long loads (like I do), the extra weight capacity may be needed, sometimes I am as heavy as 39,000+ on the two trailer axles.

Cons: tire wear, less MPG's, more suspension wear, harder to maneuver in tight areas.

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I am not sure I agree with all your Cons I've pulled the same spread axle now for 15 years tire wear is about same MPG no way compare still have same suspension parts other than shocks and have air dumps on trailer for maneuvering.

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I have a reitnouer 53 foot flatbed and it has sliding rear axle super single tires and a front axle lift I ordered the trailer from the factory new in 2007 I love it! I would a sliding axle on every trailer and never a fixed spread especially when running super singles. If your in the truck stops just watch a heavy loaded flatbed back into a spot and the suspension will make all kinds of noises, really puts the tires in a bind, and actually will leave rubber from the tires on the pavement. I have only had to open my trailer as a spread about a dozen times I just usually load the trailer as a tandem. The super single tires will last for ever.

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