We present raw data collected in the social media study for the article “What type of social media posts about sustainable construction is better for audience engagement?”. The study was conducted in 2022 and consisted of two phases and one shorter additional phase in 2023. The first phase took place from 3 May 2022 until 9 August 2022, the second phase took pace from 30 August 2022, until 6 December 2022, and the additional phase took place from 21 November 2023, until 12 December 2023. The data was collected by one researcher weekly. The social media post was posted every Tuesday at 10:00 pm (CET), and monitored every Thursday at 10:00 pm (CET). The collected data is social media viewing and impressions, engagement and likes information. It presents comparison of impressions, engagement and likes collected on three different social media channels (Facebook, Twitter (X), LinkedIn) in two phases and one additional phase of posts. Posts were of three different types – written type, image type showing equipment, image type showing people. The study was done in the framework of the project J4-3087 Engineered wood composites with enhanced impact sound insulation performance to improve human well being financed by Slovenian Research and Innovation Agency and Austrian Science Fund.