The answer to your selected question is shown below.
Carteck sectional doors currently has the best colour choice for insulated sectional garage doors in the UK
There are many variations on the colours offered by various manufacturers of steel insulated sectional garage doors.
Many of the colours originate from their country of origin so are often not so relevant to UK buyers or homes. The Carteck sectional door has a very wide range of standard colours available which have been developed specifically for the UK market and offer excellent high quality finishes with clear and proper manufacturer warranties. There are also laminated foil coated woodgrain effect options with super tough durability.
Choose the panel colour on either a smooth sliky finish or a woodgrain textured external surface for quite a different final finish and look to the door.
ANY Ral colour is also possible for an extra cost, but the range of standard colours available covers 98% of buyers needs in the UK.