anchoring wood panels to wall

[LES EATON]

I have designed the interior of fitted wardrobes that I am planning to build. The interior includes 3 'side panels' fitted at right angles to the wall which are to be used to break the full width of the space into sections. To anchor these 3 panels to the wall, I am hoping to get three 7 to 8 foot metal strips (in a square shape but with one side missing) so that I can bolt these strips to the wall and then slide the panels into the metal strip.
Does anyone know where I can get these strips, or what they are called.

[warmstrong]

I suspect you are thinking of channel. Google here:-

"uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&Ne=4294922322&Nr=AND(avl:uk,searchDiscon_uk:N)&tfgSearch=Y&N=4294955655+4294918528&Ns=stockPolicy_uk|1||new_uk|1&multiselectParam=4294955655&selectSubRange=Channel%20Components#breadCrumb"