3" Wide Continuous Steel Hinge, 6' Long
(82 reviews)
Price: $68.81
In Stock
3" Wide Continuous Steel Hinge, 6' Long
Item # H300
Our Price: $68.81
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In Stock
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- Reviews (82)
- Q & A (14)
- Videos (1)
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Polar Hardware Trailer Door Hinges - H300
- Piano Hinge
- Continuous Hinge
- 72 Inch Long Hinge
- Steel
- 3 Inch Wide Hinge
- Weld On
- Bolt On - No Pre-Drilled Holes
- 1/4 Inch Diameter Pin
- Polar Hardware
Also called a piano hinge. All continuous hinges rotate 270 degrees, measure 6' in length and come with no holes, making it easy to either weld or drill to specification.
Features:
- Mild steel construction
- Rotates 270 degrees
- No pre-drilled holes - easy to weld or drill to match application
- Made in the USA
Specs:
- Flat width: 3"
- Pin size: 1/4"
- Gauge: 0.074"
- Knuckle length: 1"
836 3" Wide Continuous Steel Hinge, 6' Long
Video of 3" Wide Continuous Steel Hinge, 6' Long
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 Reviews
3" Wide Continuous Steel Hinge, 6' Long - H300
Average Customer Rating: 4.7 out of 5 stars (82 Customer Reviews)
- H300
by: Corey01/19/2019
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.
- H300
by: Jim03/12/2020
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.
- H300
by: Grady12/31/2020
I bought this hinge to put barn doors on my shed, I go in and out twice a week working on a project truck these hinges have performed exactly like I needed them to. They open the 180°, so when the weather is nice the doors are open.
- H300
Denny - 08/31/2020
by: Denny08/30/2019
Good quality!! Worked perfect for my ramp extension!! Don’t be afraid to buy!!
Comments
Utilized on a ramp extension for my enclosed trailer: One year and still working GREAT!
Denny - 08/31/2020
- H300
by: Corey01/19/2019
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.
- H300
by: Tom Q05/23/2018
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.
- H300
Doug - 06/13/2017
by: Doug & Kim P.06/13/2016
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!
Comments
Hinge is still working as promised after a year of operation.
Doug - 06/13/2017
- H300
by: Michael Gustafson08/02/2017
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.
- H300
by: Martin07/24/2019
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.
- H300
Harold A - 08/02/2018
by: H. Anderson08/02/2017
For use in -doors or sprayed with cold galvanized paint this is a good product.
Comments
It didnt work out. Customer not happy. Had to switch to a stainless steel hinge
Harold A - 08/02/2018
- H300
Arlan B - 09/25/2015
by: Arlan Blazek09/23/2014
Just what I was wanting to make a foldout ramp for my new H & H cargo trailer.
Comments
Great
Arlan B - 09/25/2015
- H300
by: Nathan03/04/2018
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.
- H300
Bob w - 06/16/2016
by: Bob wotherspoon06/17/2015
Received item earlier than anticipated, perfect just what I needed. Will order from you folks again if i need any trailer items. Thanks
Comments
Fantastic
Bob w - 06/16/2016
- H300
by: Dustin11/16/2020
Very friendly company, fast shippers and products are as described. THANK YOU!
- H300
by: Jerry11/26/2020
Very fast delivery oh materials ordered. Exactly what I ordered.
- H300
by: joe w.10/24/2013
This piano style stap hinge is exactly what I needed. I can drill holes to attach or not drill and weld with my mig to attach. Very heavy duty, and well made, can be cut down if need be. Great for fabrication use and price is hard to beat, got here quickly undamaged.
- H300
by: Greg07/23/2020
Very happy with the purchase of the door hinge it works very well
- H300
by: tubastew02/15/2012
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.
- H300
by: Chris06/16/2015
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.
- H300
by: Michael12/29/2020
As described and quickly processed.
- H300
by: Bret03/03/2020
Great products, fast delivery ,no probl ems
- H300
by: Dave11/17/2020
Got here in a timely manner. Works good .
- H300
by: MoparCzy07/27/2016
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.
- H300
by: Steve S10/13/2016
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.
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Show More Reviews
Ask the Experts about this Polar Hardware Trailer Door Hinges
- Which Piano Hinge will Work the Best on a Trailers Ramp ExtensionDetermining between piano hinges, # H300 3 Inch Wide Steel 6 Ft Long or # SH200 2 Inch Wide Stainless Steel Hinge 6 Ft Long, depends what features you find more important for your application. The # H300 hinge will be stronger in that it is an inch wider than the # SH200. Plus, the extra width will allow for more surface area on the hinge to mount to the trailer making for a stronger hinge. However, if weather conditions are a concern, the # SH200 is made of stainless steel. The stainless...
view full answer... - Could the Piano Hinge # H300 be Used as a Hinge for a Trailer RampThe # H300 is a 6 foot long piano hinge. It would work well for you to use as a hinge for a fold down trailer ramp. If needed, you could cut the hinge down shorter. We have several customer reviews left for this product that mention how well it worked for doing exactly what you are looking to do.
view full answer... - Can a Piano Style Hinge be Used on a Trailer Ramp Door that is 94 Inches WideThe way a trailer ramp door is hinged is going to depend on how the manufacturer decides it needs to be hung so it really could be one long piece or several pieces. The hinge(s) may or may not extend all the way to the edges but most of the ones I have seen do extend the length of the door. Piano hinge # H300 is decent sized. It is 3 inches wide so it is a pretty good size. It wouldn't be used on a heavy equipment trailer or anything like that but instead be used on smaller enclosed...
view full answer... - Which Side of Piano Hinge H300 Should Face UpI'd put the rib side up on the 3" Wide Continuous Steel Hinge # H300 if for no other reason it would allow you easier access to cleaning and lubricating the hinge. It will work in either orientation but with rib up you'd have easier access.
view full answer... - Do Any of the Continuous Hinges Have a Weight CapacityPolar doesn't have any weight ratings on their hinges, but if you alternated the use of a continuous hinge, like part # H300, and a Ramp Door Hinge, like part # PLR1902, it should work well under the 800 lb load you mentioned. I confirmed this with my contact at Polar . Attached is a list of our available door hinges for you to reference as well.
view full answer... - Can Continuous Steel Piano Hinge # H300 be Cut to Length NeededYes, you can cut the hinge, # H300, to the size you need with the proper equipment. An angle grinder with a cutting wheel would be a good choice to cut the hinge. We have other hinge options if you are interested. I have linked them for you.
view full answer... - Availability of Pre-Drilled Continuous Hinge That Measures 3-Inches Wide x 68-Inches LongThe Redline replacement hinge you referenced, part # H300, measures 3- x 72-inches but is not pre-drilled. This is because this part is designed for multiple installation methods - by welding or by use of fasteners you supply. We also offer a stainless steel version, part # SH300. These hinges do not carry a specific weight capacity since that will depend on the strength of the surface they mount on. For a 150-lb door I recommend the stainless steel hinge # SH300. This hinge can be cut...
view full answer... - Mounting Hardware and Spacing when Installing 3 Inch Wide Continuous Steel HingeCustomers have used screw # TFX150 with matching bit # TX430-1 for wood. Self-tapping machine screws would work for metal surfaces in a size the same as or close to # TFX150. There isn't a set amount you have to use. Three would be the minimum. One on each end and one in the center. Five would be better. It all depends on the application. I would start with 5 placed evenly apart and see if that is going to work and then go from there.
view full answer... - Will 3" Wide Continuous Steel Hinge # H300 Work with 10-18 lb DoorThe 3" Wide Continuous Steel Hinge # H300 does not have a stated weight capacity, but we can safely guarantee it will work fine for a door that weighs 10-18 lbs total. This hinge is made from steel so it's very strong.
view full answer... - How Wide is the 3" Wide Continuous Steel Hinge When Folded Out Flat and OpenThe 3 inch width of the 3" Wide Continuous Steel Hinge # H300 is with the hinge folded out flat and open.
view full answer... - Gauge of the Steel Used for the 3" Wide Continuous Steel Hinge # H300 The gauge of the steel used for the 3" Wide Continuous Steel Hinge # H300 that you referenced is listed as .074".
view full answer... - Is a Piano Style Hinge Good for Making a Flap in a Trailer Ramp DoorSteel hinge # SH300 should work well for a flap on your trailer. You can't get a custom length but if you need 67 inches then # SH300 would be the one to get. You can trim it to the length needed. Between you and me, go with # H300. It is exactly the same only it is mild steel. The other one, # SH300, is stainless steel. That is why there is a big price difference.
view full answer... - Difference Between Piano Hinge H300 and SH300The difference between the Piano Hinge # SH300 and # H300 is the material the hinges are made of. The # SH300 is made of stainless steel which will provide excellent corrosion resistance whereas the # H300 is made from mild steel which won't resist corrosion nearly as well.
view full answer... - Recommended Hinge Arrangement for Swing-Up Side Mounted Door on Enclosed TrailerAccording to the folks at TRC, the # 362100-955 hinge you'd looked at is intended for a downward opening ramp-type door that would have the load resting vertically on the spring. For an upward opening door, there would be nothing holding the door in place which would be dangerous because the door would become unhinged. A piano, or continuous hinge like # H300 would be a much better choice. You'll need to be sure to install a header of some sort above the door that's tied into the wall...
view full answer...
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Info for this part was:
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Cole B
Updated by:
Wilson B
Updated by:
Amanda M
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