Extension Ladders

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Push-up

2.80m (9ft 2in) - Ladder Closed Length
4.60m (15ft 1in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

3.51m (11ft 6in) - Maximum Standing Height - Based on 4th rung from top of ladder

4.46m (14ft 8in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

5.01m (16ft 5in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Push-up

2.92m (9ft 7in) - Ladder Closed Length
4.88m (16ft 0in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

3.78m (12ft 5in) - Maximum Standing Height - Based on 4th rung from top of ladder

4.73m (15ft 6in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

5.28m (17ft 4in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Push-up

3.00m (9ft 10in) - Ladder Closed Length
5.00m (16ft 5in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

3.90m (12ft 10in) - Maximum Standing Height - Based on 4th rung from top of ladder

4.85m (15ft 11in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

5.40m (17ft 9in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Push-up

3.50m (11ft 6in) - Ladder Closed Length
6.10m (20ft 0in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

4.96m (16ft 3in) - Maximum Standing Height - Based on 4th rung from top of ladder

5.91m (19ft 5in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

6.46m (21ft 2in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Push

4.04m (13ft 3in) - Ladder Closed Length
7.03m (23ft 1in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

5.87m (19ft 3in) - Maximum Standing Height - Based on 4th rung from top of ladder

6.82m (22ft 5in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

7.37m (24ft 2in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Rope

4.20m (13ft 9in) - Ladder Closed Length
7.40m (24ft 3in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

6.22m (20ft 5in) - Maximum Standing Height - Based on 4th rung from top of ladder

7.17m (23ft 6in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

7.72m (25ft 4in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Rope

4.50m (14ft 9in) - Ladder Closed Length
8.00m (26ft 3in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

6.81m (22ft 4in) - Maximum Standing Height - Based on 4th rung from top of ladder

7.76m (25ft 6in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

8.31m (27ft 3in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Push-up

4.50m (14ft 9in) - Ladder Closed Length
8.00m (26ft 3in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

6.81m (22ft 4in) - Maximum Standing Height - Based on 4th rung from top of ladder

7.76m (25ft 6in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

8.31m (27ft 3in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Rope

4.94m (16ft 2in) - Ladder Closed Length
8.70m (28ft 7in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

7.49m (24ft 7in) - Maximum Standing Height - Based on 4th rung from top of ladder

8.44m (27ft 8in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

8.99m (29ft 6in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 2 (Double)
Operation - Push-up

5.00m (16ft 5in) - Ladder Closed Length
9.00m (29ft 6in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

7.78m (25ft 6in) - Maximum Standing Height - Based on 4th rung from top of ladder

8.73m (28ft 8in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

9.28m (30ft 5in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 3 (Triple)
Operation - Push-up

2.69m (8ft 10in) - Ladder Closed Length
5.82m (19ft 1in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

4.69m (15ft 5in) - Maximum Standing Height - Based on 4th rung from top of ladder

5.64m (18ft 6in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

6.19m (20ft 4in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 3 (Triple)
Operation - Push-up

3.54m (11ft 7in) - Ladder Closed Length
8.04m (26ft 5in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

6.84m (22ft 5in) - Maximum Standing Height - Based on 4th rung from top of ladder

7.79m (25ft 7in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

8.34m (27ft 4in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 3 (Triple)
Operation - Rope

4.20m (13ft 9in) - Ladder Closed Length
9.90m (32ft 6in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

8.65m (28ft 5in) - Maximum Standing Height - Based on 4th rung from top of ladder

9.60m (31ft 6in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

10.15m (33ft 4in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

The measurements below are based on the Ladder Length selected above

Use the Ladder Height Guide image for a glossary of the bold terms below

Number of sections - 3 (Triple)
Operation - Rope

4.60m (15ft 1in) - Ladder Closed Length
11.40m (37ft 5in) - Ladder Open Length - Fully extended with minimum 3 rung overlap

10.10m (33ft 2in) - Maximum Standing Height - Based on 4th rung from top of ladder

11.05m (36ft 3in) - Vertical Ladder Height - Vertical reach of fully extended ladder, with minimum 3 rung overlap and positioned at 75° (4:1 Ratio)

11.60m (38ft 1in) - Maximum Safe Working Height - Based on 1.5m above Maximum Standing Height (Approximately shoulder height, assuming an average persons height of 1.75m)

HSE - Safe use of ladders and stepladders