12″ Poly Rail


Our largest urethane rail system, this huge rail is a lightweight and low maintenance alternative to cast railing sometimes used on commercial buildings.


Include Support Block? (for bottom rails only) *

Include Rail Install Hardware? (use only 1 per top/bottom rail pair) *

Type your Rise/Run if Stair Rail Kit

SKU: TR 208 Categories: ,


Our largest exterior Porch Rail System, urethane balustrade is an excellent synthetic railing that weighs much less than other cast railing products. Low maintenance and will not rot.  Contains internal PVC pipes for strength & rigidity.  Cut to length just as you would a wood rail. Support Blocks should be used every 48″ or at mid-span.  Use with our 7 1/2″ Poly Spindles

Optional Rail Installation Hardware:  ONLY 1 KIT NEEDED FOR EACH SECTION OF TOP & BOTTOM RAIL.  Example: If you select a Kit for the top rail, then DO NOT select another for the bottom rail.  Includes necessary brackets and fasteners to attach your rails to a newel, column, or wall. For hollow columns such as our FRP columns, you may also need to use toggle bolts (not included).  Polyurethane balustrade is much easier and less costly to install than similar large cast railing products.

For CURRENT LEAD TIME and shipping transit time, click here.

SHIPPING COST is displayed in shopping cart.  Enter Quantity and click “ADD TO CART”.

CURVED RAIL is available.  Read This Article and email your measurements to us for an estimate.

Click Here for Warranty Information

Proudly Made in the USA.

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Polyurethane Product Material

Our “poly” products are made from environmentally friendly water-based High Density Polyurethane (also called urethane, HDP, or simply Poly).  The material is similar in density to a softwood such as white pine.  Unlike PVC or Vinyl, our Poly material looks and feels like authentic wood.  Each pattern is made to exacting dimensions by our staff of Master Patternmakers.  The edges of American Porch polyurethane balustrade products are sharp, clean, and offer the true authentic look and feel of wood.  It comes factory primed with a high emulsion latex paint that can be finish coated with any high quality exterior latex paint.

Polyurethane spindles are reinforced with an internal PVC pipe for strength and rigitity.  The rails are reinforced with either a PVC or Aluminum pipe.  Cut our Poly spindles and PVC-reinforced rails using normal woodworking techniques.  For rails with an internal aluminum pipe, a slow speed cutoff saw, a.k.a. multi-cutter, works best.

While many of our customers prefer the authenticity of wood, there is no question that urethane products have a few advantages.  Urethane is very low maintenance. The paint is chemically bonded during the molding process which prevents cracking and peeling. An additional primer is applied before shipping all orders. Urethane will not take on moisture, which allows it to withstand the environmental elements. It will not rot and is impervious to insects. Urethane simulates wood, is structurally sound and is the perfect enhancement for any of your building or remodeling projects.

American Porch polyurethane balustrade products are made here in the USA.


Frequently Asked Questions:

How are the rails attached to newels/columns?
Use our Railing Hardware Kit, one for section of top & bottom rail.

Do I need support blocks?  For what lengths?
Support blocks are recommended for all rail lengths 4′ and longer.

How much does shipping cost?
SHIPPING COST is displayed in shopping cart.  Enter Quantity and click “ADD TO CART”.

How long will my order take?
For CURRENT LEAD TIME and shipping transit time, click here.

Still have questions?  Email us at [email protected] or call 888-459-9965 and we’ll be glad to help with your project.


Polyurethane Balustrade Installation Instructions

Care and Finishing of Poly Balustrade

Curved Porch Railing: the Ultimate in Exterior Architectural Millwork

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