3 5/8" Poly Balustrade
The 3 5/8″ composite porch railing system is the ideal size for small to mid-size porches. It’s also a great system for deck railings, when a nicer look than standard wood deck rail is desired. Sometimes called composite railing, our urethane rail will not rot, warp or crack. For quick planning, expect around $140-$170 per linear foot, depending on your size and design preferences.
Showing 1–12 of 18 results
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Select options This product has multiple variants. The options may be chosen on the product page2 1/2″ Poly Spindle
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Select options This product has multiple variants. The options may be chosen on the product page1 3/4″ Square Baluster, Poly
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Select options This product has multiple variants. The options may be chosen on the product page2 1/4″ Square Baluster, Poly
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Select options This product has multiple variants. The options may be chosen on the product page3 5/8″ Poly Rail
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Select options This product has multiple variants. The options may be chosen on the product pagePoly Rail Install Kit
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Select options This product has multiple variants. The options may be chosen on the product pageSmooth Newel Post, Poly
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Select options This product has multiple variants. The options may be chosen on the product pageRecessed Panel Newel, Poly
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Select options This product has multiple variants. The options may be chosen on the product pageRaised Panel Newel, Poly
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Select optionsPoly Rail to Round Column Adapter Kit
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Select options This product has multiple variants. The options may be chosen on the product pagePorch Newel Post Installation Kit
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Add to cartSupport Block, Poly
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Select options This product has multiple variants. The options may be chosen on the product pagePolyurethane Porch Post
Having trouble visualizing how these items go together? Download the Porch Rail Design Options PDF. It shows you the assembled railing kits with all the different option combinations.
As with all our Polyurethane railing systems, the 3 5/8″ composite railing is available in 8, 10, and 12′ lengths. The 2 1/2″ turned urethane spindle is the centerpiece of this balustrade. This is the size to use on small to mid-size porches and decks. It has a fancy, yet modest look that will not over power the exterior of a home or porch.
Our composite rail is designed to be easy to install, which appeals to many builders and installers. Polyurethane railing cuts much like wood, and the same tools will work. See our Installation Instructions for specifics on your composite railing installation.
Often when people refer to “composite railing”, they are referring to a combination wood/synthetic material. This balustrade is made of High Density Polyurethane, which is a foam product with a density similar to that of a softwood such as cedar or pine. This is what gives our synthetic balustrade the natural look and and warm feel that homeowners want.
You’ll sometimes hear composite railing referred to as Fypon railing. Fypon is a brand name of polyurethane. They are probably the largest brand, but have been bought and sold by big corporations and have outsourced production to China. We make all our polyurethane products in the USA, which gives us better quality control and more consistent lead times.
D.M. of St. Charles, MO writes on 3/20/25: “Worked with American Porch for designing an exterior stair rail system for a customer. The look and feel of the poly product was excellent. You’d never know it wasn’t wood, which was the highest concern for my client. The office personnel was exceptionally helpful, professional and patient. American Porch will be our go-to from now on!”
