These guys also sell the various extrussions and fittings. Aluminium Extrusions UK | Cut To Size | Multiple Profiles | Quick Dispatch
Also
https://www.aluminium-profile.co.uk/aluminium-profile-components
https://www.odroid.co.uk/index.php?route=product/product&product_id=905
https://www.fruugo.co.uk/400mm-black-aluminium-v-extrusion-2080/p-52179742-105042706
and for more information @MikeK has used a load of these extrusions to build benches etc so may answer other questions with assembly etc.
Also
https://www.aluminium-profile.co.uk/aluminium-profile-components
https://www.odroid.co.uk/index.php?route=product/product&product_id=905
https://www.fruugo.co.uk/400mm-black-aluminium-v-extrusion-2080/p-52179742-105042706
and for more information @MikeK has used a load of these extrusions to build benches etc so may answer other questions with assembly etc.
