Simpson Strong-Tie PPB Adjustable post base Post bases
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Simpson Strong-Tie PPB Adjustable post base 
Simpson Strong-Tie AG527P Square garden post base, bolt-down 
Simpson Strong-Tie PPA100PB Fixed post base, Black finish 
Simpson Strong-Tie KIT FIX APB – Adjustable ready-to-fix post base 
Knapp GmbH ZIPBOLT™ XT Post Anchor 
Simpson Strong-Tie APB100/150PB Adjustable post base, black finish 
Simpson Strong-Tie PISBMAXI Heavy-duty post base 
Simpson Strong-Tie PPJBMPB Post base for low wall and slab edge, black finish 
Knapp GmbH ZIPBOLT™ UT Post Anchor 
Simpson Strong-Tie PPSP Single-plate post base for casting in 
Simpson Strong-Tie KIT FIX PPJNCPB Square garden post base, Black finish 
Simpson Strong-Tie PPRC Adjustable post base 
Simpson Strong-Tie APB7090 Small adjustable post base 
Simpson Strong-Tie PBP60/50 Pergola post base 
Simpson Strong-Tie PPS Concealed post base with base plate 
Simpson Strong-Tie AG527PB Bolt-down square garden post base, Black finish 
Simpson Strong-Tie PIBA Adjustable Heavy Duty Post Base 
Simpson Strong-Tie PGS Heavy-duty adjustable tubular post base 
Simpson Strong-Tie PPJBT Bolt-down square garden post base 
Simpson Strong-Tie PPJNET Drive-in square garden post base, Black finish 
Simpson Strong-Tie PPUP U-shaped post base with base plate 
Simpson Strong-Tie PPRIX Adjustable post base, A4 stainless steel 
Simpson Strong-Tie PBLR Adjustable post base for concrete slab corners 
Simpson Strong-Tie PPG60/25PB Width-adjustable post base, Black finish 
Simpson Strong-Tie PPJBM Post base for low walls and slab edges Simpson Strong-Tie KIT FIX PPJBT “Ready-to-fix” square post base on a base plate 
Simpson Strong-Tie PU U-shaped post bases 
Simpson Strong-Tie PP490 H-shaped garden post base Simpson Strong-Tie KIT FIX PPRC Adjustable "ready-to-fix" post base 
Simpson Strong-Tie KIT FIX APB “Ready-to-fix” adjustable post base 
Simpson Strong-Tie PPA Fixed post base 
Simpson Strong-Tie KIT FIX PPA Fixed post base "ready-to-fix" Simpson Strong-Tie APB100/150 Adjustable post base 
Simpson Strong-Tie PISB Heavy Duty Post Base 
Simpson Strong-Tie PBU Garden post base for grooved posts 
Simpson Strong-Tie PBH Heavy Duty Post Base 
Simpson Strong-Tie PIG Blade-type post base for casting in 
Simpson Strong-Tie PPJST Square garden post base, screw-in 
Simpson Strong-Tie PPG60/25 Width-adjustable garden post base 
Simpson Strong-Tie PPJET Drive-in square garden post base 
Simpson Strong-Tie PPJBTPB Square garden post base, Black finish 
Simpson Strong-Tie PPMINI Small fixed post base 42 of 54 products
What are post bases used for?
Post bases are essential to the stability and longevity of structures, as all the loads of a structure are concentrated at the post bases. They also play a key role in protecting timber by keeping it away from rising damp and fungal attack. These critical components must therefore be securely fixed. Various solutions are available, and the choice depends on the type of installation required. The post base is usually specified by a structural engineering firm, which selects the most suitable model for the application.
Types of post bases
- Bolt-down or cast-in post bases
- Adjustable post bases
- Drive-in or ground screw post bases
- Heavy-duty post bases
- Bolt-down or cast-in post bases
Installing post bases
There are two types of installation: bolt-down or cast-in. The choice depends on the ground in which the post is installed. On existing concrete, a bolt-down post base is the best solution. In freshly poured concrete, a cast-in post base, set into the wet concrete, is the best solution. Simply mark the exact position and fix the base in place.
Adjustable post bases
Many post bases are adjustable, allowing you to set the post to the required height. This is essential for supporting landings or stairs, and it lets you level your surfaces as accurately as possible.
Adjustable post bases consist of two parts. The first is cast into or bolted to the ground, and the second is screwed onto a threaded rod. This second part is also screwed to the timber post or welded to the metal post it supports.
A post base can, for example, support a deck, a pergola canopy or a conservatory.
Drive-in or ground screw post bases
There are also post bases that anchor into the ground in a less permanent way. Instead of a cast-in base, you can choose one that is driven or screwed into the ground using a helical ground screw. This type of base is quick and easy to install.
Heavy-duty post bases
Very heavy loads require specific, suitable components. Post bases designed to support several hundred kilograms must be made of strong materials such as galvanised steel. Heavy-duty post bases are generally not adjustable.
There are also post bases designed for corner positions, so that the installation remains perfectly stable even in a corner.