Buchner Mfg. supplies one of the largest colour selections of Aluminum Flatstock/Trimcoil. Heavy gauge aluminum is most commonly used by contractors. Buchner Mfg. provides 42 colours in heavy gauge and 21 colours in our standard gauge. The majority of our flatstock/trimcoil is painted on two sides with our popular Polar White on the back of most colours. Ideal for making your own trims and flashing's, or have us make your specialty trims and flashing's by providing us with a drawing. Contact your local branch for more details on custom trims and flashing's.