Comparison Guides

Most asked comparisons

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D15 or D20? Choosing Tie Rod Diameter Without Oversizing

Load capacity, wall thickness constraints, panel compatibility and reuse cost — the four factors that decide between the two standard sizes.

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Five-Section Water Stop Tie Rod vs One-Piece Embedded Tie Rod

Both keep a bar permanently inside a water-retaining wall. They differ in what you throw away every pour, how the seal is made, and what a repair costs later.

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Reusable Through-Tie vs Lost-End Tie: The Real Cost Comparison

A through-tie is recovered and re-used; a lost-end tie stays in the wall. The break-even point is set by reuse cycles, hole-filling labour and what the specification allows.

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Cast Iron Water Stop Nut vs Welded Water Stop Plate

A welded plate is made on the bar; a cast iron water stop nut is fitted on site. Same job, different tolerance for welding quality, wall thickness changes and site error.

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Choosing Tie Rod Grade: 4.8 vs 8.8 vs 10.9 in Practice

What property classes actually guarantee, how allowable tension is derived, and when a higher grade is wasted money or an active risk.

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Single-Sided Embedded Bolt vs Through-Tie: Which Anchorage Works

When you can only reach one face of the wall, the tie cannot pass through. What changes is not just the hardware but where the load goes.

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Sizing and strength

Which diameter, which property class, and what the choice actually changes on site.

• D15 or D20? Choosing Tie Rod Diameter Without OversizingLoad capacity, wall thickness constraints, panel compatibility and reuse cost — the four factors that decide between the two standard sizes.
• Choosing Tie Rod Grade: 4.8 vs 8.8 vs 10.9 in PracticeWhat property classes actually guarantee, how allowable tension is derived, and when a higher grade is wasted money or an active risk.
• Concrete Lateral Pressure and How It Sets Tie Rod SpacingFresh concrete pressure as a function of pour rate, temperature and height, and the sequence that turns that pressure into tie spacing.

Waterproofing and water-retaining walls

How a penetration is made watertight, and what each detail costs in consumables and labour.

• Five-Section Water Stop Tie Rod vs One-Piece Embedded Tie RodBoth keep a bar permanently inside a water-retaining wall. They differ in what you throw away every pour, how the seal is made, and what a repair costs later.
• Cast Iron Water Stop Nut vs Welded Water Stop PlateA welded plate is made on the bar; a cast iron water stop nut is fitted on site. Same job, different tolerance for welding quality, wall thickness changes and site error.
• How a Water Stop Tie Rod Actually Seals a WallThe water path through a tie hole, why a welded plate interrupts it, and what must be true for the detail to pass a leak test.

System choice and cost

Recoverable or embedded, two faces or one — the decisions that drive cost per pour.

• Reusable Through-Tie vs Lost-End Tie: The Real Cost ComparisonA through-tie is recovered and re-used; a lost-end tie stays in the wall. The break-even point is set by reuse cycles, hole-filling labour and what the specification allows.
• Single-Sided Embedded Bolt vs Through-Tie: Which Anchorage WorksWhen you can only reach one face of the wall, the tie cannot pass through. What changes is not just the hardware but where the load goes.
• Where the Money Goes in Formwork HardwareThe cost structure of a fastener order, which levers actually move price, and why a small hardware change can cost more than the hardware.

Material and surface

Coating, stainless grade and thread manufacturing, compared by environment and failure mode.

• Coating Choice: Black Oxide, Zinc, Hot-Dip and DacrometCoating thickness, salt-spray life, thread fit and hydrogen embrittlement risk compared, with selection rules per environment.
• Stainless Steel Fasteners: 304 vs 316 vs DuplexWhich grade survives which environment, why stainless still corrodes, and the galling problem that catches out first-time buyers.
• Rolled vs Cut Threads: Why It Matters for FatigueGrain flow, fatigue strength, surface finish and cost — and how to tell a rolled thread from a cut one without a metallurgist.
• Wing Nuts, Disc Nuts and Washers: Selection and TighteningHow nut geometry affects grip, why the washer matters more than the nut, and how tight a formwork tie should actually be.