Generally, crown moulding extends further down the wall than on the ceiling. The concave (cove) side goes down, and the convex (rounded) side goes up.
The saw can be set to 45 degrees to the left or 45 degrees to the right. It's a best practice to cut crown moulding upside down on the miter saw.
Yes you definitely need to nail your crown molding into the ceiling joists as well it will prevent the top edge that is attached to the ceiling from sagging over time. I've done trim carpentry for ever 20 years.
No, crown molding doesn't make the ceiling look higher, it just makes it look smaller. Crown molding acts opposite way of a picture frame whereas the picture frame makes the painting look larger, even though the crown molding frames the ceiling, it indeed makes the ceiling look smaller.
Hanging Crown Moulding Correctly
The quick rule of thumb is that the more decorative side goes on the bottom. Knowing the correct orientation will make installation a much smoother process.
If your crown moulding is going into a room with high ceilings, you may want it to be the same color as the ceiling to make the room appear smaller. The opposite is valid for a room with low ceilings, as a trim in a contrasting color will make the room appear more spacious.
Since they can shift slightly and very few rooms have exactly square corners, all settings should be tested on scrap moldings. The following two chart shows settings are for all U.S. Standard Crown Molding with 52° and 38° angles, and assume that the angle between the wall is 90°.
An ideal crown angle falls within the range of 33.5 to 35.5 degrees. A well-cut crown angle guarantees that light entering the diamond is reflected back to the eye of the observer.
Crown is typically nailed up with a 2” finishing nail and a compressor and finishing gun. Outside corners are usually done with a brad nailer and 1” brad nails with glue. Studs are generally 3-1/2”, drywall a ½” and the crown moulding a minimum of ½”; therefore 2” finishing nails are necessary.
It's important for homeowners to easily reach items in their kitchen cabinets, regardless of their height. The average folk's height plays a role in the standard height of kitchen cabinets. If the cabinets were to touch the ceiling, most people would need a step stool or ladder to access top-shelf items.
Many homeowners choose to either match crown molding to their wall or cabinet color, or choose a contrasting color to create an accent. Crown molding doesn't really have any other purpose than decorative – so don't feel the need to install it if you're not too keen.
1) Never leave crown moldings closer than 9 inches from a ceiling. Once you get within a foot of the ceiling you should have the cabinetry and molding meet the ceiling. Don't create spaces that look odd and that can't be cleaned. Molding too close to ceiling without reaching it.
Floor: Baseboard moulding.
Ideally, the crown angle should be between 31.5-36.5°. As with table size and crown facet size, the crown angle is a trade-off between brilliance and fire. In order for the stone to have excellent symmetry, it must have the same crown angles all around.
Standard Position: An angle is in standard position if its vertex is located at the origin and one ray is on the positive x-axis. The ray on the x-axis is called the initial side and the other ray is called the terminal side.
Remember that the critical angle is defined as an angle of incidence value. The critical angle will be 48.6 degrees for water-air boundaries and 61.0 degrees for crown glass-water boundary.
It's much easier to cut the molding while it's laying flat on the saw's table and against the fence. The height of the fence and width of the molding aren't an issue. But in order to do this, the miter will have to be set at an angle other than 45 degrees. The correct angle to set the miter is 31.6 degrees.
The first step of learning how to use a miter saw is to understand the difference between a miter cut and a bevel cut. A miter is an angled cut made across the face, or width, of a board. A bevel is an angled cut made through the thickness of a board.
SAWSET is perfect for Crown Molding. Your Miter Saw is designed with 2 adjustable angle settings. One at the back, which enables you to tilt/lean the blade, which gives you the bevel. The other is on the front of the saw, parallel to the saw table, to adjust for the miter setting.
Do you paint walls or trim first? From a professional point of view, with interior painting, it makes the most sense to paint your trim first, then ceilings, and then your walls. It's much easier and faster to tape off trim than to tape off your walls. And you definitely don't want the hassle of taping them both.
Crown molding with a 38 degree spring angle is so common, in fact, that many miter saws are equipped with pre-set detents or marks at the 31.6 degree miter and 33.9 degree bevel settings used for 90 degree corners.
Many experts say to rely exclusively on semi-gloss when painting crown molding, as it imparts some shine and texture to the molding. Additionally, it's more durable and long-lasting than flat paint.