Cut offs from kitchen units, wall panels etc. (West End LA3)

Cut offs from kitchen units, wall panels, wardrobes etc. : I am looking for leftovers from wooden boards, laminated chipboard and also solid wooden panels. Even small pieces (20 x 20 cm) are fine, especially longer pieces (from 30 to 200 cm and more) are more than welcome. I have several exhibitions this year and am very grateful for any help to finish my paintings and collages. Thank you very much !