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3" Wide Continuous Hinge - 6' Long - Steel

3" Wide Continuous Hinge - 6' Long - Steel

Item # H300
Our Price: $67.32
Trailer Door Hinges
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Great for your heavy-duty utility trailer, this piano hinge provides uninterrupted support for your door or tailgate. The hinge rotates 270 degrees and contains no pre-drilled holes, so it can be welded or drilled to match your setup. Great Prices for the best trailer door hinges from Polar Hardware. 3" Wide Continuous Hinge - 6' Long - Steel part number H300 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (98)
  • Q & A (0)
  • Videos (1)
  • Photos

Polar Hardware Trailer Door Hinges - H300

  • Piano Hinge
  • Continuous Hinge
  • Steel
  • 72 Inch Long
  • 3 Inch Wide
  • 1/4 Inch Diameter
  • Bolt-On - No Pre-Drilled Holes
  • Weld-On
  • Polar Hardware

Great for your heavy-duty utility trailer, this piano hinge provides uninterrupted support for your door or tailgate. The hinge rotates 270 degrees and contains no pre-drilled holes, so it can be welded or drilled to match your setup.


Features:

  • Hinge provides sturdy, continuous support for the door or tailgate on your utility trailerl
  • Continuous design offers more support than smaller, individual hinges and reduces stress on heavier doors
  • 270-Degree rotation for full opening and closing motion
  • Weld-on or bolt-on installation
    • Bolt-on install requires drilling holes into hinge
  • 16-Gauge steel construction is durable and long-lasting
  • Made in the USA


Specs:

  • Dimensions: 6' long x 3" wide
    • Each side of the foldable hinge measures 1-1/2" wide
  • Individual knuckle length: 1"
  • Pin diameter: 1/4"


836 3" Wide Piano Steel Hinge, 6' Long





Video of 3" Wide Continuous Hinge - 6' Long - Steel

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Polar Hardware Enclosed Trailer Parts - Doors - H300 Review

Today, we're going to be taking a look at the 3" wide continuous steel hinge. It's going to measure 6' long. This is also called a piano hinge. These type of hinges are used for a variety of applications. You'll find them on tool boxes, different types of flaps, and they are commonly used for trailer ramp doors. Now, this one in particular is made from a mild steel construction. It is strong and durable, and it will resist rust and corrosion.

It's not going to do as great of a job as stainless steel, but it's still going to do a good job. It's still a nice design, mild steel. The unit's going to rotate 270 degrees, so it's going to allow for full opening. I do want you to notice that there's no predrilled holes on the unit. What that does is it makes it easier for welding applications, and it makes it easier to kind of customize it for your application.

That way, you can drill out the holes where you need them to best fit your particular application. Right now, the hinge is completely flat. If we take a measurement of that in this position, edge-to-edge, that's going to measure 3" wide. The internal pin size . There going to be a that runs right through all these knuckles here. That pin's going to give us a diameter of 1/4".

The gauge of steel that the hinge uses for its construction is 0.074". Then the over all length of the unit, measuring from edge to edge, is right on 72" which again is going to measure 6' long. Now this can be cut to fit your need. You can cut it anywhere along. I do recommend cutting right between where the knuckles separate. The knuckle links, that's each one of these pieces right here.

The knuckle links on the unit's going to be 1" long. That's going to do it for today's look at the 3" wide continuous steel hinge that measures 6' long.

Customer Satisfaction Score:


Customer Reviews

3" Wide Continuous Hinge - 6' Long - Steel - H300

Average Customer Rating:  4.8 out of 5 stars   (98 Customer Reviews)

Great for your heavy-duty utility trailer, this piano hinge provides uninterrupted support for your door or tailgate. The hinge rotates 270 degrees and contains no pre-drilled holes, so it can be welded or drilled to match your setup.

by:

Heavy duty and well made. Just what I was looking for.

Jeffery

12/1/2023

It still works Great. Used as a Lawncare trailer so it’s opened and closed several times a day.



by:

I am very pleased with the products i purchased from etrailer. Very fast shipping and spot on descriptions of all the items purchased. If only all online products could be described as detailed. Any questions i had where answered either by phone or email. Thank you you so much for the great products. One stop shopping made it easy to build my off road camper. A few things purchased where the timberen hd 3500 lb axles 4 in lift with 10" breaks, marker lights,tail lights,and some interior lights as well as the trailer wiring and all the connection that go with it. . And the red arc off road trailer break kit. Thanks again.



by:

The used trailer I bought has a hinged ramp extension. The hinge was getting rusty and stiff. The new hinge is working great.



by:

I am very pleased with the products i purchased from etrailer. Very fast shipping and spot on descriptions of all the items purchased. If only all online products could be described as detailed. Any questions i had where answered either by phone or email. Thank you you so much for the great products. One stop shopping made it easy to build my off road camper. A few things purchased where the timberen hd 3500 lb axles 4 in lift with 10" breaks, marker lights,tail lights,and some interior lights as well as the trailer wiring and all the connection that go with it. . And the red arc off road trailer break kit. Thanks again.



by:

Sorry I cut up my hinge. How's that for an old man with dumb ideas? Very happy will know more later. Also including more pictures before the new hinge.



by:

Would’ve given this 5 stars if it was pre drilled. Shipping was massive and not packed that well. I ever said this cuts easily was wrong. I had to cut mine to fit my 6x12 with my angle grinder, and it was not as easy as I read about.



by:

I needed an additional fold-over ramp for my enclosed trailer's ramp. This piano-style hinge filled the bill perfectly. Used it quite a bit, and it's made loading and unloading the trailer much easier. Great price. Durable. Easy to cut to size.



by:

I use the hinge for a ramp extension allowing to wheel thing into the trailer.
The hinge is strong and does the job well.
Keep in mind that this is NOT a stainless steel component and will incur some corrosion if not treated.

Good product.



by:

Good quality!! Worked perfect for my ramp extension!! Don’t be afraid to buy!!

Denny

8/31/2020

Utilized on a ramp extension for my enclosed trailer: One year and still working GREAT!



by:

I used this hinge to make a ramp extension for the back of my toy-houler. I added a 6' wide, 3' long extension made of 3/4 inch plywood. I was able to drive my 900 pound Goldwing up the ramp and into the tralier without the grounding problem I had on my first attempt. This hinge came without pre drilled holes, which was a nice feature as I could space them where I wanted them. A word caution may be warranted. If you are planning to have your application fold flat, then stagger your holes so the bolt/screw heads to not butt up against each other.



by:

Great job guys. My trailer parts arrived on schedule and parts were exactly as expected. I will continue to do business with you in the future.



by:

Bought 2, one for the top and bottom of the ramp door to our trailer to mount flaps for ease of rolling toolboxes and carts onto and off of the trailer. We don't use it much, but they have held up to 900lb toolboxes rolling over them without an issue.



by:

Hinge arrived in excellent condition this morning - 30 minutes later it was welded in place! The hinge was straight & heavy enough for our purposes. I promised our client we wouldn't disclose this project until they advertised it; so, I'll post photos next month. Thank you ETRAILER.com!

Doug

6/13/2017

Hinge is still working as promised after a year of operation.



by:

The hinge I had wanted was going to be several months out, an Etrailer rep got ahold of me and let me know about several alternatives.I decided on an alternative, and was shocked when it was delivered within two days.



by:

Just what I was wanting to make a foldout ramp for my new H & H cargo trailer.

Arlan B.

9/25/2015

Great



by:

For use in -doors or sprayed with cold galvanized paint this is a good product.

Harold A.

8/2/2018

It didnt work out. Customer not happy. Had to switch to a stainless steel hinge



by:

The hinge is made of good quality steel for heavy duty applications and was very easy to install without any modifications. took about 30 minutes. I would recommend this product to anyone needing that extra lip at the end of the ramp for smooth loading.



by:

Exactly what I was looking for to make a small flap extension ramp for my enclosed trailer. I like the fact that I can drill my own holes to fit my application.



by:

Just what I needed



by:

I used this hinge on a teardrop trailer that I built it worked very well would recomemd it to every one, etrailer was very easy to order from,and fast shipping



by:

Received item earlier than anticipated, perfect just what I needed. Will order from you folks again if i need any trailer items.
Thanks

Bob W.

6/16/2016

Fantastic



by:

Product was as described and arrived quickly.
Would
highly recommend etrailer



by:

Too soon to tell Looks heavy duty compared to Orig hinge Use is for transition flap on drop gate. Note shipping tube damaged /split. Needs a bit of wood strapping taped to hinge to prevent possible bent hinge.



by:

Everything arrived in good condition as product was described. I only had a small problem with one of the latched for the cam-door lock. It was binding on the top and not allowing it to swing down. Nothing a little lubrication couldn't fix. Thank you, I will be placing another order soon.



by:

Good heavy duty hinge, just recently cut it and am using it for the doors on a trailer. I expect that it will hold up quite well.


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