Simpson Strong-Tie CPT66Z Post Base & Fixing Kits

The Simpson Strong-Tie CPT66Z is an architectural-grade concealed timber post support designed for medium-to-heavy structural columns ranging from 133x133mm up to 150x150mm[cite: 308]. Utilising an internal steel flitch plate, it delivers an ultra-clean, hardware-free finish while providing a crucial 25mm stand-off ground clearance[cite: 279, 308]. This configuration mechanically isolates timber columns from standing water and concrete capillary moisture, preventing rot failure cycles while maintaining elite load-bearing performance[cite: 279].

Premium Architectural Aesthetics

Combines a completely hidden internal wood connection with a highly durable, textured flat black powder-coated base plate to elevate visible structural timber designs[cite: 279, 284].

Heavy-Duty Non-Bored Engineering

Engineered to anchor structural timber pillars securely to concrete using direct vertical slot inserts and structural dowels, retaining ultimate column base stability[cite: 289, 298, 299].

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Simpson Strong-Tie CPT66Z 133mm x 133mm

Concealed Post Base Pre-Galvanised

Product Code: 78CPT66Z

Each
£25.84

5+
£23.69

Fixing Kit For CPT66Z Post Base

(Fixings Only)

Product Code: 99FKCPT66ZFO

Per Pack
£2.34

Fixing Kit For CPT66Z Post Base

Complete With SDS Drill Bit & Nut Driver

Product Code: 99FKCPT66ZFDD

Per Pack
£11.94

Our Address

Metro Fixings Ltd
Unit 3 Tewin Court, Tewin Road
Welwyn Garden City, AL7 1AU

Contact Details

Telephone: 01707 375172
Fax: No Fax
Email: sales@metrofixings.co.uk