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Simpson Strong-Tie PISBMAXI 200mm x 200mm

Heavy Duty Post Base. C/W 2no 12 x 120 Dowels

Simpson Strong-Tie

Product Code: 78PISBMAXIG-B

Model Code: PISBMAXIG-B

Brand: Simpson Strong-Tie

Finish: Hot Dip Galv


£108.49 inc VAT ( Priced Each )

(Include VAT?)   

Quantity:
 
49 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 PISBMAXI Heavy-Duty Post Base (200mm x 200mm)

The Simpson Strong-Tie PISBMAXI is an industrial-grade, structural-strength timber post support engineered to transfer high-capacity vertical compression, horizontal shear, and uplift forces from heavy timber columns to concrete foundations. Manufactured with a heavy-duty steel base plate and a 148mm stand-off tube, it provides absolute mechanical isolation for structural posts, protecting timber zones from ground moisture pooling and fungal decay while meeting stringent UK building regulations.

CRITICAL STRUCTURAL SPECIFICATION: LATERAL RESTRAINT MANDATE

Like all standard stand-off structural supports, the PISBMAXI 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 PISBMAXI heavy duty post base structural dimension diagram technical drawing
Key Dimension Description PISBMAXI Value
A Top Plate Width 120 mm
B Top Plate Length 120 mm
C Vertical Fin Insertion Height 100 mm
D Concrete Base Plate Width 200 mm
E Concrete Base Plate Length 200 mm
F Stand-Off Tube Isolation Height 148 mm
H Vertical Fin Plate Width 110 mm
t1 Vertical Connection Fin Thickness 8 mm
t2 Concrete Base Plate Thickness 10 mm

TECHNICAL DATA & DESIGN CAPACITIES

Specification Parameter Engineered Values & Materials
Base Plate Dimensions 200mm x 200mm square structural footprint
Stand-Off Ground Clearance 148mm clean isolation zone tube height
Material Composition Premium mild steel body plate array
Corrosion Protection Grade Hot-Dip Galvanised coating (Optimized for Service Class 3 exterior exposures)
Characteristic Capacities Full structural load ratings defined across values R1,k, R2,k, R3,k and R4,k
Fastener Requirements (Timber) Requires approved structural dowel pins (Ø8mm - Ø13mm depending on configuration)
Fastener Requirements (Concrete) Requires 4 No. heavy-duty structural anchors/fixings bolts

KEY STRUCTURAL PERFORMANCE ADVANTAGES

  • Extreme Structural Load Transfer: Heavy-duty base engineering plate geometry distributes concentrated column loads uniformly across concrete foundations.
  • Advanced Stand-Off Protection: Elevates the column timber base 148mm off the ground substrate floor level, blocking capillary water tracking paths and preventing timber rot failure cycles.
  • Maximum Weather Protection: Heavy-duty hot-dip galvanised finish shields structural components from environmental corrosion hazards, ensuring long-term code compliance.
  • Regulatory Compliance: Fully certified to EN standards, maintaining absolute load capacities across all primary force planes (uplift, download, and lateral shear).
Purchase PISBMAXI Post Bases & Fixing Kits
PISBMAXI Data Sheet
PISBMAXI Data Sheet
PISBMAXI Declaration of Performance
PISBMAXI Declaration of Performance
Environmental Product Declarations (EPD)
Environmental Product Declarations (EPD)


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.


 

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