The ladder opens and closes "step by step", meaning that it can be used at multiple heights up to 3.8m. Therefore you open only to the height required giving great maneuverability, particularly in small spaces. Number of Ladder Step: 13 Step Interval: About 30cm Net Weight: About 11kg Max Load Capacity: 150kg Package Size: 88cm x 50cm x 9cm Dimensions (when fully opened): 380cm x 48cm x 8.8cm. Slight deviation may occur during measurement, please take care and thanks for your understanding.Sometimes your order may be impacted by extreme bad weather, strikes or other unexpected events. We are happy to offer solutions to your inquiries. This item is in the category "Home & Garden\Tools & Workshop Equipment\Workshop Equipment\Ladders". The seller is "groundman2019" and is located in this country: US. This item can be shipped to United States.