Basically you start out by determining which faces of your enclosure will have these seams. The plan is to leave the seams on sides of the enclosure that won't be seen too often, or not at all.

Before you begin, note that most spray adhesives can be separated once or twice without loss of holding power when the glue cures. So remember that if you need to set the carpet and remove for final positioning this can be done without sacrificing the holding power of the adhesive. Just be quick, and try to keep the work area free of dust and debris that will keep the adhesives from being able to form a good bond.

I usually start out by determining which side will be the bottom, this is where I start to attach the carpet. I start by laying the carpet on the floor or other large flat area, with the back side of the carpet towards the floor. Then continue by placing the enclosure on top of the carpet with the edge of the carpet resting beneath the side which is to be the bototm of the finished enclosure. The edge should be about centered on the bottom wall of the enclosure, covering only half of the surface, the rest of the wall will be covered later by the other end of the carpet.

Once I've verified that there is enough carpet to wrap the entire enclosure, I apply spray contact cement to the carpet and the enclosure, but only enough to attach carpet to one side at a time. Apply the contact cement to the carpet and side of the enclosure that are about to be joined, then roll the enclosure into position and let the weight of the enclosure press the carpet firmly to the enclosure wall.

After repeating this step three or four times, you'll now have what would appear to be a huge carpet burrito, with the enclosure wrapped on four sides inside the roll of carpet.

The carpet should hang freely over the edges of the enclosure, with as little exposed glue as possible.

The seam that is to be made on the bottom of the enclosure is pretty simple to make. If you let the two flaps of carpet overlap, one previously glued to the enclosure and the other positioned later, you can get a perfect seam by using a sharp utility knife to slice through both pieces of carpet at the same time. As you cut through both pieces you'll leave a slice in each piece that can be joined neatly once the scrap edges are removed.

Now comes the envelope part.

Stand the enclosure on one end, with the flap of unattached carpet standing up like a perimeter fence surrounding the upright end of the enclosure. Use the utility knife to slice the carpet in four places, one slice extending upwards from each corner. Now you'll have five flaps, three flaps that are the full length of the corresponding edge and two smaller flaps that make up the edge adjacent to the bottom of the enclosure.

Apply the glue to the end of the enclosure, and each of the flaps, then begin attaching the flaps.

Start by positioning the two smaller flaps, trim these to a length that will allow coverage of at least half of the distance to the opposite edge. Next take the opposite flap and position it so that it overlaps these two flaps, then trim through all of the flaps and remove the scrap.

The two remaining flaps of carpet can now be folded over into position and trimmed in the same manner, by slicing through the flap and attached carpet, slicing from the corners towards a common point at or near the center of the side you are working on.

After removing the scrap pieces of carpet, your end should have clean seams that form a pattern that looks like the back side of an envelope.

Repeate this process for the other end of the enclosure.

Happy carpeting.