Decals and lettering in Charlotte

Cut vinyl is a different product from a printed wrap

Cut lettering starts as a solid-color film, so the color is the material rather than ink sitting on top of it, and there is nothing in it to fade at a different rate from anything else. The artwork is cut on a plotter, the waste is weeded away by hand, and what is left is picked up on transfer tape and applied as a single registered piece. What makes the film grade matter more here than on printed work is the edges. A printed graphic carries an overlaminate that caps every cut edge; a cut letter has no cap at all. The whole perimeter of every character is exposed to wash brushes, grit and UV from the first day, and every counter inside a letter is another exposed edge. So lettering is cut from film rated for unlaminated outdoor use rather than from whatever remnant is on the bench, and an economy film that survives on a flat sign panel comes apart on a door washed every week.

What the federal marking rule actually requires

The marking rule for commercial motor vehicles is 49 CFR 390.21. It calls for the carrier's legal name, or a single trade name, together with the identification number preceded by the letters USDOT, displayed on both sides of the vehicle. What it sets on the marking itself is a legibility standard rather than a type specification: the lettering must contrast sharply in color with the background it is placed on, must be readily legible in daylight from a distance of 50 feet while the vehicle is stationary, and must be kept that way. There is no federal letter height in that rule, there is a distance test, which is why we cut markings with margin over what would just pass rather than to the smallest size that might. Which vehicles carry the obligation, and what a given operating authority requires beyond it, is a question for the carrier and its regulator. We cut and place what the carrier supplies, and we flag a layout that will not hold up to the contrast or the distance.

Whose number belongs on the door

On a leased or owner-operator unit, the marking that belongs on the door is that of the carrier operating the vehicle, the one whose authority the load moves under and which answers for its safe operation, rather than whoever holds the title. That has a practical consequence for how the decals are built. Authority changes, lease arrangements end, and a truck can move between carriers more often than it changes paint. So the name block, the identification number and any unit number are cut as separate pieces working to a common baseline instead of as one bonded panel, which turns a change of carrier into re-cutting one element and reworking one area of a door rather than stripping the whole side. Where a unit is expected to move regularly we use a removable-adhesive film for those pieces specifically, so they come away cleanly without heat and without leaving a shadow in the paint.

Phone numbers, web addresses and what is actually readable

Readable distance is set by stroke weight and contrast at least as much as by height. A condensed light face at a generous size is harder to read at speed than a plain medium face two steps smaller, and a phone number in a color close to the panel behind it is unreadable at any size at all. A decal package is therefore laid out by where each element gets read from. The company name goes on the side, where it is taken in at traffic speed by someone with no reason to work at it. The phone number goes on the rear, where a following driver stopped at a light has both the time and the proximity to write it down. The web address is kept short enough to be taken in at a glance, because nothing longer than that will be. Required markings are placed where an inspector expects to find them, low on the door or forward on the side, rather than worked into artwork where they have to be hunted for.

Vehicles we apply this to