RailFX RFX200 Flat Top Rail - Picket Rail System

The RFX200 delivers a 3-1/2” x 1-7/8” flat top rail that works double duty — structural support and functional drink rail surface. This aluminum picket system handles the punishment Montana weather dishes out while giving contractors flexibility they actually need on the job site.

Field trimmable with a carbide blade means no ordering custom lengths for odd deck dimensions. The spliceable system creates continuous over-the-post rail runs without visible breaks. Available in 94” and 96” lengths, the system accommodates most standard deck configurations.

System Design and Compatibility

The flat top design suitable for use as a ‘drink rail’ sells itself to homeowners. That wide surface handles coffee mugs, beer bottles, and grilling tools — practical features that justify the investment. The contemporary, low-profile aesthetic doesn’t dominate the view like bulkier rail systems.

Compatible with RailFX 2-3/8” posts, the system integrates with existing RailFX installations. The kit includes aluminum top rail, picket filler, vinyl gasket, picket balusters, bottom rail, and bottom finishing plate. Five powder coat colors — Black, Bronze, Silver, White, and Walnut — match most deck surfaces and home exteriors.

Specification	Value
Top Rail Dimensions	3-1/2” x 1-7/8”
Available Lengths	94”, 96”
Picket Size	5/8” x 5/8”
Post Spacing	Up to 6 feet on center for picket infill
Material	Heavy duty aluminum

That 6-foot post spacing capability reduces material costs on large deck projects. Fewer posts mean less drilling, less hardware, and faster installation. The wider spacing works because heavy duty aluminum construction handles the span without sagging.

Installation and Code Compliance

Installation requires a miter saw with toothed non-ferrous metal/carbide blade, impact driver or drill, driving bits, and tape measure. The process stays straightforward: mount posts (surface, fascia, or core mount), trim top and bottom rails to fit post spacing, install bottom rail and picket fillers, insert vinyl gaskets and picket balusters into rails, snap components together and secure with screws, then attach end plates or splices as needed.

Engineered to meet IBC (International Building Code) and IRC (International Residential Code) requirements for structural strength and safety spacing. The system complies with the 4-inch sphere rule for picket spacing — no special modifications needed for inspection.

RailFX backs the RFX200 with a Limited Lifetime Warranty covering defects in material and workmanship. The powder coated finish resists Montana’s UV exposure and temperature extremes better than painted alternatives. Low maintenance and easy to clean — no annual staining like wood rails.

For stair applications, the system requires addition of a secondary handrail system to meet graspability requirements. The flat top works for level deck sections but doesn’t provide the continuous graspable surface stairs demand.

Frequently Asked Questions

Can the RFX200 handle cable or glass infill instead of pickets?

The RFX200 Flat Top Rail - Picket Rail System comes configured specifically for picket infill with 5/8” x 5/8” picket balusters. The product name and included components indicate picket-specific design.

What’s the actual weight difference between aluminum and wood rails?

Heavy duty aluminum construction provides lightweight yet durable construction. Crews move faster when they’re not wrestling heavy pressure-treated lumber up stairs.

Does the powder coat finish hold up to Montana winters?

Low maintenance and easy to clean powder-coated finish outperforms paint in freeze-thaw conditions. The Limited Lifetime Warranty covers defects in material and workmanship, backing the durability claims.

Can you really trim these rails on-site?

Field trimmable for custom site lengths using a carbide blade — no special equipment needed beyond what contractors already carry. This eliminates ordering errors and allows adjustments for out-of-square framing.