RailFX RFX250 Square Top Rail (Post to Post)

The RFX250 delivers what Montana contractors need most — the only RailFX top rail that meets ADA, IBC, and IRC graspable handrail requirements. This matters when building code-compliant stairs on decks and elevated platforms across the state. Made from 6063-T6 extruded aluminum with powder-coated finish per AAMA 2604 standards, it handles Montana’s temperature swings without the cracking, peeling, or maintenance headaches of painted steel alternatives.

Code Compliance and Installation Flexibility

At 2” W x 1-5/8” H, the RFX250’s dimensions qualify as graspable per building codes — a critical distinction from other RailFX rails. The flat Series 200 (3-1/2” x 1-7/8”) and the Series 400 designed for wood toppers don’t meet graspability requirements. For stair applications, the rail sits approximately 34 inches above deck surface, right where codes require it.

The 60-inch maximum post spacing works perfectly for Montana’s snow load requirements — wider spacing than that invites sagging under heavy snow. Field-trimmable with a carbide blade saw means less waste on the job. Cut it to exact length on-site rather than ordering custom lengths and waiting.

Specification	Value
Material	6063-T6 extruded aluminum
Dimensions	2” W x 1-5/8” H x 94” L
Max Post Spacing	60 inches on center
Cable Spacing	3-3/16 inches on center
Stair Rail Height	Approximately 34 inches
Warranty	Limited Lifetime

Installation Process and Hardware

Mount Rail Connecting Blocks (RCB) or Intermediate Post Fittings (IPF) to posts set at no more than 60-inch intervals. The system works with standard RailFX 2-3/8” square aluminum posts in surface, fascia, or direct-to-fascia configurations. After sliding the rail over mounting fittings and securing with color-matched screws, Series 250 End Plates (FXEP250) cap the rail ends.

Available in Black Aluminum, Bronze Aluminum, Silver, and White, with powder-coated standard finishes or spray-paint options for color matching. Compatible infill options include 316-grade stainless steel cable (1/8” diameter typical), aluminum pickets, or glass panels.

The Bottom Line

For contractors needing a graspable handrail that meets ADA, IBC, and IRC requirements, the RFX250 fills a specific niche in the RailFX lineup. The powder-coated aluminum construction outlasts painted alternatives in Montana’s freeze-thaw cycles. At 60-inch post spacing capability, it balances structural integrity with material efficiency. Not the cheapest rail option, but when code compliance matters — particularly on stair applications — it delivers what inspectors require.

FAQ

What makes the RFX250 different from other RailFX top rails?

The RFX250 is the only RailFX rail that qualifies as graspable per ADA, IBC, and IRC requirements due to its 2” W x 1-5/8” H dimensions. Other RailFX rails like the Series 200 (3-1/2” x 1-7/8”) and Series 400 don’t meet graspability standards.

Can I cut the RFX250 to custom lengths on-site?

Yes, the rail is field-trimmable with a carbide blade saw for precise sizing. This eliminates waste and allows exact fitting during installation.

What finish options protect against Montana weather?

The RFX250 comes with powder-coated finishes per AAMA 2604 standards in Black Aluminum, Bronze Aluminum, Silver, and White. These finishes resist cracking, chipping, blistering, peeling, and discoloration.

What’s the maximum distance between posts?

Maximum post spacing is 60 inches on center. This spacing works well for Montana’s snow loads while maintaining structural integrity.

What mounting hardware do I need?

The system uses Rail Connector Blocks (FXRCB1) or Intermediate Post Fittings (FXIPFSET) to attach to standard RailFX 2-3/8” square aluminum posts. Series 250 End Plates (FXEP250) cap the rail ends.