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Simpson Strong-Tie PBH120 120mm x 120mm

Heavy Duty Elevated Post Base Galvanised

Simpson Strong-Tie

Product Code: 78PBH120

Model Code: PBH120

Brand: Simpson Strong-Tie

Finish: Hot Dip Galv


(Include VAT?)   

Total Price

£118.80 inc VAT

Quantity:
 
26 IN STOCK
Sorry! This product is only sold in multiples of 0.
Order by 2pm for Next Day Delivery (Mon-Fri)
Delivery Icon FREE Standard Delivery on Orders over £100*




STRUCTURAL TIMBER CONNECTORS / HEAVY-DUTY POST BASES

Simpson Strong-Tie PBH120 Heavy-Duty Elevated Post Base (120mm x 120mm)

The Simpson Strong-Tie PBH120 is an engineered, industrial-grade structural post support specifically developed for high-capacity heavy-duty applications including Glulam timber columns. Suitable for timber post sizes ranging from 120x120mm up to 200x200mm, it features a substantial 216mm stand-off height. This elevated configuration ensures absolute structural isolation of the timber column from the concrete foundation substrate, eliminating moisture tracking paths and protecting primary load-bearing timbers from fungal decay in demanding Service Class 3 exterior environments.

CRITICAL STRUCTURAL SPECIFICATION: LATERAL RESTRAINT MANDATE

Like all standard stand-off structural supports, the PBH120 operates strictly as a pinned structural connection. It is engineered exclusively to resist vertical axial loads, tension uplift, and horizontal shear—it is not designed to withstand bending moments or rotational momentum. To maintain structural integrity, the top of the timber post must be rigidly secured via an approved lateral restraint configuration (such as floor diaphragms, cross-bracing, or braced beam structures).

Click here to read our industrial engineering guide on why lateral restraint is required.


TECHNICAL SPECIFICATION DRAWING & KEY DIMENSIONS

Simpson Strong-Tie PBH120 heavy duty elevated post base structural dimension diagram technical drawing
Key Dimension Description PBH120 Value
A Top Plate Width 120 mm
B Top Plate Length 120 mm
C Vertical Plate Height 155 mm
D Concrete Base Plate Width 155 mm
E Concrete Base Plate Length 155 mm
F Stand-Off Column Isolation Height 216 mm
G Vertical Fin Plate Width 90 mm
t1 Steel Components Plate Thickness 8 mm

TECHNICAL DATA & DESIGN CAPACITIES

Specification Parameter Engineered Values & Materials
Base Plate Dimensions 155mm x 155mm square structural footprint
Stand-Off Ground Clearance 216mm clean isolation zone height
Material Composition Premium hot-dip galvanised mild steel plate (Heavy-duty array)
Corrosion Protection Grade Hot-Dip Galvanised (Optimized for Outdoor Service Class 3 exposures; EPD EN 15804 certified)
Characteristic Capacities R1,k (Compression) = 156.4 kN | R2,k (Uplift) = 20.7 kN | R3,k = 8.3 kN | R4,k = 7.7 to 9.2 kN (C24 Timber)
Fastener Requirements (Timber) Requires 4 No. STD 08 structural dowel pins (Dowels included)
Fastener Requirements (Concrete) Requires 4 No. heavy-duty structural anchors (Ø12mm anchor holes provided)

KEY STRUCTURAL PERFORMANCE ADVANTAGES

  • Extreme Structural Load Transfer: Specifically rated for heavy-duty applications, providing a characteristic compression capacity of up to 156.4 kN on structural columns.
  • Advanced Stand-Off Protection: Elevates the column timber base 216mm off the concrete ground substrate, completely blocking moisture tracking paths to prevent timber rot cycles.
  • Maximum Weather Protection: Hot-dip galvanised finish shields internal and external structural steel components from environmental corrosion hazards in Service Class 3 exposures.
  • Regulatory Compliance: Fully CE and ETA certified (ETA 503), maintaining absolute engineered load profiles across all primary structural axes.
Purchase PBH120 Post Bases & Fixing Kits
Data Sheet
Data Sheet
Declaration of Performance
Declaration of Performance
European Technical Assessment (ETA)
European Technical Assessment (ETA)


Logistics Excellence

Fast, Reliable Delivery Nationwide

Getting your heavy structural fixings, framing connectors, and site essentials to your workshop or straight to the job site exactly when you need them.

TRUCK

Standard Mainland Delivery

Our reliable baseline shipping network services core industrial hubs and regional sites across the UK mainland via premium tracked courier freight routes.

Shipping Rate £8.95 + VAT
FREE Standard Shipping on orders over £100!

Next Working Day Dispatch

Tight project deadlines. Secure premium prioritised material line allocations. Items are picked, palletised, and routed on premium rapid-transit cargo links.

Order Window Order by 2:00 PM (Mon-Fri)
Fast tracked transit for critical construction paths.
Active construction site framing and rapid transit transport delivery truck keeping builds moving

How We Keep Your Builds Moving

We partner with leading heavy industrial parcel and parcel-freight carriers across the country to maintain real-time tracking from our central warehouse shelves straight to your signature pad.

01.
Instant Hub Sorting: Approved orders pass straight to active pick queues via our localised automated barcode stock framework.
02.
Heavy Component Packing: Structural products are safely stored in industrial reinforced crates or strapped securely to custom pallets to fully safeguard fine threads and anti-corrosion zinc surfaces.
03.
Tailgate On-Site Offloading: Bulk shipments drop cleanly at your structural site boundary line via integrated tail-lift carrier transport systems.

Logistics Scope & Out-Of-Zone Shipments

Standard pricing arrays map explicitly to structural mainland UK postal grids. Supplementary transit routing variables, variable lead times, or specialised carrier adjustments apply across high-altitude or outlying maritime zones:

  • Scottish Highlands & Islands: Postcode structures matching KW, IV, PA, and PH configurations map to premium alternative transit grids. Please review checkout calculations for accurate real-time weights.
  • Northern Ireland, Isle of Man & Outer Channels: Specialised water-crossing logistical paths require clean custom manifesting lines.
  • Heavy Oversized Pallets: Extended multi-ply girder connectors, structural space straps, or high-volume masonry hangers exceeding standard bulk dimensions pass through dedicated heavy haulage grids.
*** NEED SPECIFIC AM DELIVERY TIMES OR SITE COORDINATION ARRANGEMENTS *** If your project features demanding time windows, unique site restrictions, or crane offload coordination, contact our central logistics team directly on 01707 375172 or email your schedule over to finalise arrangements.


 


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Fixing Kit Complete For PBH120 Post Base

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Product Code: 99FKPBH120FDD

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£11.95

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