4. Mantels and Extractor housings. Some companies will offer you just a mantel shelf, others may have a full mantel in 1 size. We have over 100 variations of mantel and extractor housings plus you can have any height, width or depth. This means that you can make a real feature of the mantel, and get a look that is right for your kitchen and doesn't look like all your friend's kitchens.