Spa & Hot Tub Steps - Dark Grey
Spa & Hot Tub Steps - Dark Grey is temporarily out of stock and will ship as soon as it's available.
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Spa & Hot Tub Steps - Dark Grey
Spa & Hot Tub Steps - Dark Grey is temporarily out of stock and will ship as soon as it's available.
Universal Spa Step – Dark Grey (Two-Tier)
Sturdy two-tier spa step for easy, safer entry and exit. Each tread is 710 mm × 280 mm, with step heights of 220 mm (first step) and 420 mm (top step). Rated to 136 kg (300 lb).
Why you’ll love it
- Two-tier design: 220 mm first step to 420 mm top step for confident access.
- Wide treads: 710 mm × 280 mm per step for secure footing.
- High load rating: Supports up to 136 kg (300 lb).
- Neutral finish: Dark grey suits most modern spas and outdoor areas.
- Low-maintenance: Simple to keep clean and looking sharp.
Specifications
| Configuration | Two tiers |
|---|---|
| Colour | Dark Grey |
| Tread size (each step) | 710 mm (W) × 280 mm (D) |
| Height to top of first step | 220 mm |
| Height to top step | 420 mm |
| Weight limit | 136 kg (300 lb) |
Tip: Measure your spa’s cabinet height and available space to confirm the ideal step height and footprint.
What’s included
- Universal Spa Step – Dark Grey (two-tier)
FAQs
Will it fit my spa?
The wide 710 mm treads suit most portable and acrylic spas. Check the 420 mm top-step height against your spa’s entry height.
What is the maximum user weight?
The step is rated to 136 kg (300 lb). Do not exceed this rating.
Can I use it outdoors?
Yes—its durable finish is designed for typical spa areas. Keep surfaces clean and dry for best traction.
About this two-tier spa step
This dark grey two-tier spa step (also called a hot tub step) provides stable access to your spa with generous tread size and a safe 220 mm to 420 mm rise. It’s a simple, low-maintenance way to make getting in and out of your spa easier for family and guests.
In plumbing, named sizes are not the actual measurements. A pipe called “50mm” or “2"” does not measure 50 mm across. Instead, it follows nominal sizing, an internationally-standardised naming system.
Use the Outside Diameter (OD) to check your pipe against fittings. Below is a quick reference for common spa & pool pipe sizes:
| Imperial Name | Metric Name | Pipe Diameter (OD) |
|---|---|---|
| 1/2" | 15mm | ~21.2–21.5 mm |
| 3/4" | 20mm | ~26.6–26.9 mm |
| 1" | 25 mm | ~33.4–33.7 mm |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.8 mm |
| 2.5" | 65 mm | ~75.2–75.5 mm |
These are nominal sizes and are designed to fit matching fittings — not to measure exactly what their name suggests. These are based on PVC Pressure Pipe AS/NZ 1477 Dimensions1.
- º Internal diameters vary slightly by manufacturer and class.
- 1 Not all pool/spa fittings match these dimensions exactly. Some do not follow Australian or international standards. Chinese spas may use proprietary fittings.
Understanding Plumbing Sizes & Nominal Measurements
Plumbing sizes can be confusing. PVC and many other pipe systems use nominal sizes—the size is a name, not the exact measured dimension. This convention is used across most pool and spa systems so that pipes and fittings remain compatible.
Why pipe sizes don’t match the measurements
The Nominal Pipe Size (NPS) system standardises pipe dimensions so that pipes, fittings, valves, and accessories interoperate. Plumbers work with these nominal names every day, but DIYers can be tripped up if they try to match by a tape-measure alone.
How to Measure Pipe Correctly
-
Pipe size is identified by:
- The pipe’s Outside Diameter (OD).
- The fitting’s Inside Diameter (ID) (socket opening).
- Pipe Class / Schedule (e.g., Class 9, 12, 18 or Sch 40) relates to wall thickness and therefore the Internal Diameter (ID) and pressure rating.
- The outside diameter of a fitting is not useful (wall thickness varies by manufacturer).
Hose & Tube Dimensions
Common flexible hose sizes used in pool/spa systems (approximate IDs).
| Imperial Name | Metric Name | Inside Diameter (ID) |
|---|---|---|
| 3/8" | 9–10 mm | ~9 mm |
| 3/4" | 19 mm | ~19 mm |
BSP – British Standard Pipe Thread Sizes
BSP thread names are also nominal. The thread OD will not equal the nominal name.
| BSP Thread Size Naming | Outside Diameter (mm / inch) | TPI |
|---|---|---|
| 1/16" BSP | 7.7 mm / 0.304" | 28 |
| 1/8" BSP | 9.7 mm / 0.383" | 28 |
| 1/4" BSP | 13.16 mm / 0.518" | 19 |
| 3/8" BSP | 16.66 mm / 0.656" | 19 |
| 1/2" BSP / 15 mm | 20.99 mm / 0.825" | 14 |
| 5/8" BSP | 22.99 mm / 0.902" | 14 |
| 3/4" BSP / 20 mm | 26.44 mm / 1.041" | 14 |
| 7/8" BSP | 30.20 mm / 1.189" | 14 |
| 1" BSP / 25 mm | 33.25 mm / 1.309" | 11 |
| 1-1/4" BSP | 41.91 mm / 1.650" | 11 |
| 1-1/2" BSP / 40 mm | 47.80 mm / 1.882" | 11 |
| 2" BSP / 50 mm | 59.61 mm / 2.347" | 11 |
| 2-1/4" BSP | 65.71 mm / 2.587" | 11 |
| 2-1/2" BSP | 75.18 mm / 2.960" | 11 |
| 3" BSP | 87.88 mm / 3.460" | 11 |
| 4" BSP | 113.03 mm / 4.450" | 11 |
| 5" BSP | 138.43 mm / 5.450" | 11 |
| 6" BSP | 163.83 mm / 6.450" | 11 |
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