Model # 50011

Internet #203677915

Store SKU #562327

Store SO SKU #1000073462

Peak Aluminum Railing 4 in. x 5-1/2 in. x 42 in. Black Aluminum Mid Post

Peak Aluminum Railing

4 in. x 5-1/2 in. x 42 in. Black Aluminum Mid Post

  • DIY friendly and easy to install
  • Attractive and durable powder coat finish
  • Weight evenly distributed onto post instead of bracket welds
$3992 /each

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  • Black
  • White
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Frequently Bought Together

Product Overview

A strong railing design begins with the post support - a key area in providing a safe and stable railing system. Our Aluminum Mid Post is firmly anchored to deck surfaces with a sturdy, attractive 4 x 4 base support. Unlike flat base plates, the die cast base of our end post provides a complete four-sided support to the 2 x 2 post and overall stability to your railing system. The Aluminum Mid Post is a fundamental part of the Peak Aluminum Railing - an attractive, durable and low-maintenance railing system. While other railings may warp, rot or decay, Peak Aluminum Railing stays strong for years thanks to its superior protection and lasting beauty.

California residents: see   Proposition 65 information

  • Easy to install
  • Attractive and durable powder coat finish
  • Unique post design distributes weight onto the post rather than on the bracket welds
  • Die cast base support design provides additional support
  • Includes 1 x 42" mid post with fasteners
  • Complete your project


Info & Guides

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Customer Questions & Answers

Post Installation

Your installation shows installing the post onto a wood deck. My deck floor is composite boards. I'll be able to install 2 screws into wood floor joists but the other 2 screws will go into the composite floor boards. Will these screws be enough to hold them or do I need to use bolts in these positions? Thanks, Bob
Asked by: Bob
Hi Bob, thanks very much for your question. In this case, you will need to add blocking under the areas where the post bases will install to ensure that each lag screw has sufficient material to fasten to. Please feel free to contact Peak's customer service department toll free at 877-883-7325 if you have any additional questions.
Answered by: Product Expert
Date published: 2016-10-11

Is this system available in 32 or 36 inch heights for porches. I purchased the 42 inch and it is to high for a porch.

Asked by: Jorge
Actually, 42" height is standard height for most State's building codes. 32" or 36" inches most children can climb over, and most adults could accidentally fall over. Building codes are in place for a reason.
Answered by: 2acre
Date published: 2016-10-10

Can these Posts be installed onto concrete?

I need to find some posts/rails to install on my front porch before I list my home for sale.
Asked by: Jared
Yes, the posts can be installed on to concrete.
Answered by: CommunityAnswer
Date published: 2016-09-16

Are 45 degree posts available?

I see the posts come with a 90 degree corner, blank post for the railing, or a middle post with brackets on each side. My question is - my deck has 45 degree corners, how do I get the railing to angle that way?
Asked by: Mark
No. You need to purchase "Universal Connector" sets that screw into the two end posts. These Universal Connectors pivot to accommodate any angle. I had one 45 degree angle on my installation and the universal connectors worked just fine. Just take your time measuring to ensure a good snug fit and connector height match to the end posts.
Answered by: DoItYourselfer
Date published: 2015-09-29
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Customer Reviews

4 in. x 5-1/2 in. x 42 in. Black Aluminum Mid Post is rated 4.7 out of 5 by 6.
Rated 5 out of 5 by from Overall the Peak aluminum railing system is very high quality. Well thought out construction and... Overall the Peak aluminum railing system is very high quality. Well thought out construction and easy to install if you follow the directions. I chose the 6" glass panels for my railing and they look great. Only improvement could be if they provide 5/16 lag bolts for the installation. The provided bolts were too small for a normal installation.
Date published: 2017-05-02
Rated 5 out of 5 by from Terrific Quality! I'm a 68 year old woman DIY'er -- easy to assemble with a professional look and... Terrific Quality! I'm a 68 year old woman DIY'er -- easy to assemble with a professional look and VERY sturdy! I used an electric drill and a chop saw -- followed the directions, used the enclosed hardware ----- EXCELLENT results!!
Date published: 2017-03-08
Rated 5 out of 5 by from Excellent Do-it-yourself Aluminum Railing I used the Peak Aluminum on my deck rebuild (capped composite decking) for a virtually maintenence free deck. Very easy to work with. Top and bottom rails cut easily with a high TPI saw blade made for nonferrous metals. However, I would not recommend cutting the picket spacers using the same blade. The spacers are too short (3 7/8") and several times the scrap end was caught by the blade and went flying. Dangerous situation! When installing the posts, make sure that the supplied 3" lag bolts have something substantial in which to screw. In my installation, two of the lag bolts screwed into the outside joist/face board. For the other two screws, I nailed a 2 x 8 between the joists, horizontally. In my installation, I used a combination of 4', 6' and 8' railing sections. In reading the installation instructions, it states that the widest allowable railing sections are 6'. I called the company and found out the 8' railing sections were being discontinued, but I found enough at a local store to complete the job. I basically did 55 linear feet of railing for about $1300. Much less expensive than pre-assembled aluminum railing sections.
Date published: 2015-09-29
Rated 5 out of 5 by from Peak Aluminum Fencing I am always cautious of boxed construction materials. This Peak Fencing is a pleasant experience. All of the components were properly machined and the powder coating was perfect. No scratches and no damage. I recommend the following to make your project perfect. Have an accurate plan and stick to the plan. Don't cut any materials until a trial view has been completed. Don't get in a hurry and most of all apply old school knowhow, accurate measurements and newer saw blades. Have a flat file as well as a rat tail to remove any burrs. This Peak Fence will pay dividends in compliments, appearance and added safety.
Date published: 2015-06-16
Rated 4 out of 5 by from Good Choice As a contractor this product was easy to install, sturdy and nicely detailed. It is a good alternative to having a fabricator custom build the railing. A decent low budget solution. A bit more labor than pre-built panels but easy enough. One caution - don't lose any screws it doesn't come with any extras. Best to have it delivered to store to pick up at your convenience. Had to block out a two hour window and they showed up with a 40' semi for a 90 lb. package. The driver was very courteous, professional and made it within the two hour window.
Date published: 2015-12-22
Rated 4 out of 5 by from Good quality These are good quality parts. Our installer said the midrails were pretty simple to put together. I was glad to find a 42" railing.
Date published: 2015-12-29
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