Rubberised carpet underlay - OLD (Speedwell BS5)

Been in for a long time, very heavy weight sound deadening rubber foam carpet underlay. Been under a bedroom carpet (Non-smoking for at least 15 years) Replaced whole floor and dont have anywhere to re-use it myself, but its still got life in it. I got rid of the small and badly damaged bits. If interested just let me know when you want to collect and I will leave it out. Its the off cuts shapes of black/grey plus the roll of green thats in the white bag. Sorry I dont know the dims, but if its that important I could get it all out and measure.