Retaining Wall Steel Posts

A hot-dip galvanised steel stair stringer set, supplied as a matched left- and right-hand pair. Bolt the top hanger brackets into place and concrete the stringer feet into a suitable footing. Treads are not included – Trio sells the stringers so the timber tread can be supplied separately.

Key Features

• Supplied as a matched left- and right-hand pair
• Hot-dip galvanised
• Standard 175mm rise, set at an angle of 35 degrees
• Designed to take a maximum tread width of 1000mm, to suit a tread 250mm deep
• 3mm metal thickness; the in-ground leg is approximately 265mm long
• Convenient and easy to install – available off the shelf in 2 to 5 tread sets

Technical Specifications

A hot-dip galvanised steel stair stringer set, supplied as a matched left- and right-hand pair. Bolt the top hanger brackets into place and concrete the stringer feet into a suitable footing. Treads are not included – Trio sells the stringers so the timber tread can be supplied separately.

Key Features

• Supplied as a matched left- and right-hand pair
• Hot-dip galvanised
• Standard 175mm rise, set at an angle of 35 degrees
• Designed to take a maximum tread width of 1000mm, to suit a tread 250mm deep
• 3mm metal thickness; the in-ground leg is approximately 265mm long
• Convenient and easy to install – available off the shelf in 2 to 5 tread sets

Technical Specifications

A hot-dip galvanised steel stair stringer set, supplied as a matched left- and right-hand pair. Bolt the top hanger brackets into place and concrete the stringer feet into a suitable footing. Treads are not included – Trio sells the stringers so the timber tread can be supplied separately.

Key Features

• Supplied as a matched left- and right-hand pair
• Hot-dip galvanised
• Standard 175mm rise, set at an angle of 35 degrees
• Designed to take a maximum tread width of 1000mm, to suit a tread 250mm deep
• 3mm metal thickness; the in-ground leg is approximately 265mm long
• Convenient and easy to install – available off the shelf in 2 to 5 tread sets

Technical Specifications

A hot-dip galvanised steel stair stringer set, supplied as a matched left- and right-hand pair. Bolt the top hanger brackets into place and concrete the stringer feet into a suitable footing. Treads are not included – Trio sells the stringers so the timber tread can be supplied separately.

Key Features

• Supplied as a matched left- and right-hand pair
• Hot-dip galvanised
• Standard 175mm rise, set at an angle of 35 degrees
• Designed to take a maximum tread width of 1000mm, to suit a tread 250mm deep
• 3mm metal thickness; the in-ground leg is approximately 265mm long
• Convenient and easy to install – available off the shelf in 2 to 5 tread sets

Technical Specifications

HARDAZ corner stake, 450mm. Use it to secure timber borders such as garden beds where a full corner post is not required.

Key Features

• For timber sleeper borders such as garden beds
• Galvanised steel
• 450mm — one sleeper high (about 200mm)
• Corner stake

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ heavy-duty corner stake, 450mm. Use it on external corners where extra strength is needed on timber sleeper borders and light retaining.

Key Features

• Heavy-duty corner stake
• Galvanised steel
• 450mm — one sleeper high (about 200mm)
• For external corners that need extra strength

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ heavy-duty flat stake, 450mm. Use it to join straight runs where extra strength is needed on timber sleeper borders and light retaining.

Key Features

• Heavy-duty flat stake
• Galvanised steel
• 450mm — one sleeper high (about 200mm)
• For straight runs that need extra strength

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ flat stake, 450mm. Use it to join straight runs, add extra strength, and secure timber borders such as garden beds.

Key Features

• Joins straight runs and adds extra hold
• Galvanised steel
• 450mm — one sleeper high (about 200mm)
• For timber sleeper borders

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ hot-dip galvanised support pin for light-duty garden beds, sand pits and similar borders. Use with timber edging where a full retaining post is not required.

Key Features

• For light-duty garden beds, sand pits and similar borders
• Hot-dip galvanised steel
• 400mm pin — one sleeper high (about 200mm)
• DIY friendly

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised end post, 65 x 1100mm. It finishes the end of a timber sleeper retaining wall for 50mm sleepers at three sleepers high (about 600mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Finishes the end of a retaining wall
• Suited to 50mm timber sleepers (HARDAZ 65mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised end post, 65 x 450mm. It finishes the end of a timber sleeper retaining wall for 50mm sleepers at one sleeper high (about 200mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Finishes the end of a retaining wall
• Suited to 50mm timber sleepers (HARDAZ 65mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised end post, 65 x 750mm. It finishes the end of a timber sleeper retaining wall for 50mm sleepers at two sleepers high (about 400mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Finishes the end of a retaining wall
• Suited to 50mm timber sleepers (HARDAZ 65mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised end post, 88 x 1100mm. It finishes the end of a timber sleeper retaining wall for 75mm sleepers at three sleepers high (about 600mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Finishes the end of a retaining wall
• Suited to 75mm timber sleepers (HARDAZ 88mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised end post, 88 x 450mm. It finishes the end of a timber sleeper retaining wall for 75mm sleepers at one sleeper high (about 200mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Finishes the end of a retaining wall
• Suited to 75mm timber sleepers (HARDAZ 88mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised end post, 88 x 750mm. It finishes the end of a timber sleeper retaining wall for 75mm sleepers at two sleepers high (about 400mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Finishes the end of a retaining wall
• Suited to 75mm timber sleepers (HARDAZ 88mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised joiner post, 88 x 1100mm. It joins a straight run of timber sleeper retaining wall for 75mm sleepers at three sleepers high (about 600mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Joins a straight run of retaining wall
• Suited to 75mm timber sleepers (HARDAZ 88mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised joiner post, 88 x 450mm. It joins a straight run of timber sleeper retaining wall for 75mm sleepers at one sleeper high (about 200mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Joins a straight run of retaining wall
• Suited to 75mm timber sleepers (HARDAZ 88mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised joiner post, 88 x 750mm. It joins a straight run of timber sleeper retaining wall for 75mm sleepers at two sleepers high (about 400mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Joins a straight run of retaining wall
• Suited to 75mm timber sleepers (HARDAZ 88mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised corner post, 65 x 1100mm. It creates a 90° corner on a timber sleeper retaining wall for 50mm sleepers at three sleepers high (about 600mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Forms a 90° corner
• Suited to 50mm timber sleepers (HARDAZ 65mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised corner post, 65 x 450mm. It creates a 90° corner on a timber sleeper retaining wall for 50mm sleepers at one sleeper high (about 200mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Forms a 90° corner
• Suited to 50mm timber sleepers (HARDAZ 65mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised corner post, 65 x 750mm. It creates a 90° corner on a timber sleeper retaining wall for 50mm sleepers at two sleepers high (about 400mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Forms a 90° corner
• Suited to 50mm timber sleepers (HARDAZ 65mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised corner post, 88 x 1100mm. It creates a 90° corner on a timber sleeper retaining wall for 75mm sleepers at three sleepers high (about 600mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Forms a 90° corner
• Suited to 75mm timber sleepers (HARDAZ 88mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)

HARDAZ galvanised corner post, 88 x 450mm. It creates a 90° corner on a timber sleeper retaining wall for 75mm sleepers at one sleeper high (about 200mm). A recessed channel seats each sleeper flush — no fasteners and little excavation. Pressed from 2.5mm galvanised steel, the wall is about one-third the thickness of a conventional timber-post wall and is suited to walls up to 1000mm high. The recess also takes up later timber movement and shrinkage.

Key Features

• Heavy duty galvanised steel for longer life
• No fastening or packing required
• Recessed channel for a flush, non-obtrusive finish
• DIY friendly
• Forms a 90° corner
• Suited to 75mm timber sleepers (HARDAZ 88mm profile)

Installation

1. Check council requirements. For walls over 1m, or walls on a slope holding considerable weight, obtain an engineer’s report.
2. Post height should be double the finished wall height, so about half the post is below ground.
3. Clear the line, set a string line, and dig a channel so the bottom sleeper sits 100mm into the ground.
4. Stand and concrete the first post plumb. Seat the bottom sleeper before placing the next post, then repeat.
5. Use quick-set concrete, a shovel or post-hole digger, tape measure, string line and level.

Technical Specifications

Documents

• Product Manual – Retaining Wall Posts (PDF)