Washington Clam Shell Base

The Washington Clamshell Base delivers a historic 19th-century aesthetic with the modern resilience of LLDPE resin. This high-profile, 27.5” tall base features a classic fluted detail and a bell-shaped silhouette designed to replicate traditional metalwork without the risk of pitting, oxidation, or impact cracking. Unlike industry-standard cast aluminum or iron, our specialized resin is rust-proof, salt-resistant, and never needs painting, making it immune to de-icing chemicals and environmental acids.

Engineered as a versatile retrofit solution, this two-piece “wrap-around” design allows you to upgrade existing infrastructure without the labor costs of disconnecting wiring or removing the post. With a substantial 23.50” diameter footprint, it is designed to fit seamlessly over poles with an outer diameter of up to 7.50”. Similar in style to our popular Delaware Bases and the Washington Drop-Over, this resin clamshell provides the ornate look of a traditional streetscape with significantly lower long-term maintenance requirements.

Sizing & Specs

Part Number Pole Diameter Height Material Spec Sheet CSI 3-Part-Spec SketchUp
TC-WAS28 up to 7.50" 27.5" resin Download Download View
All measurements are nominal. Please allow up to 1/4 inch variances.