Should drywall joints be tight?

Hanging Drywall Vertically: Leave a 1/8-in.

Jamming in a piece that's too tight will crumble the edge or break out a corner (left). And removing a piece to shave a too-tight edge is messy and time consuming. A loose fit avoids this problem. Cut it to leave about a 1/8-in.

Should drywall be butted tight?

Vertical joints in drywall are also called "butt joints." Always leave a 1/2-inch gap at the floor. This allows for floor and wall expansion without cracking the drywall. It also helps prevents moisture wicking if the floor floods.

Should there be gaps between drywall?

However, during installation, be diligent about keeping that 1/8 inch space between sheets by using a guide. The blade of a drywall square is about 1/8-inch-thick and does the trick. Thin strips of wood can also be used as spacing guides.

What are two common mistakes made during Drywalling?

What if drywall doesn't end on a stud?

In situations where drywall is not able to be mounted to studs or other structural members, failure in the joint is likely. If you have no choice but to hang the drywall joints in between the studs, the best alternative is to install a new stud in between.

Importance of Prefilling and V-Grooving butt joints.

How much space should be between drywall and stud?

This is the main reason that drywall is 4-ft wide and why studs are spaced at 16-inches. Because drywall is four feet it is divisible by 16. This means that each piece of drywall will be centered at each stud. This means you won't have to cut each piece of drywall if the walls are 8-ft tall, which is also the standard.

Do you hang drywall on walls or ceiling first?

Hang drywall on the ceiling first, then the walls. Check the ceiling for bowed joists using a 4-ft. level. Irregularities less than 1/8 in.

Should drywall touch the floor?

Drywall should NOT touch the floor. Allow for floor and wall expansion without cracking the drywall by keeping a 1/2-inch (1.27-cm) space between them. This space also aids in preventing moisture from seeping if the floor floods.

Should you stagger drywall seams?

It's not necessary to stagger seams on ceiling drywall. However, because these joints are relatively difficult to finish – and tend to be noticeable in the finished product – it's a good idea to stagger the drywall panels to make the joints less visible.

How much gap can you have in drywall?

Cut it to leave about a 1/8-in. gap at edges (right). In fact, when you're hanging the ceiling, keep in mind that 1/2 in. along the perimeter will be covered by drywall on the walls.

Should I run drywall vertically or horizontally?

Final Thoughts. In short, drywall should be hung horizontally on residential buildings and vertically on commercial buildings. In the case of either, support beams should always run perpendicular to the wall studs at a distance of 24 inches (61 cm) apart.

Does drywall shrink expand?

Expansion and contraction

Drywall, like many other types of materials, expands when it gets warm and contracts when it cools off. This expansion and contraction may cause cracking and that is one of the reasons that the building code usually requires expansion joints in walls that are over 30 feet long.

Should you wet drywall tape before applying it?

Dampen, but don't soak, the tape in a bucket of water. Wetting the tape before you embed it in the joint compound can help eliminate troublesome bubbles that show up after the joint dries. Keep a bucket of water nearby and quickly run each piece of tape through it before applying the tape to the wall.

How far should drywall joints be staggered?

The butt joints of a wall are generally one of the weaker areas that are prone to cracking. By staggering the butt joints, you limit them to no more than 4 feet long and therefore decrease the chance of cracking when settling.

How many coats of drywall mud do I need?

If your wall has distinct crevices, cracks, or textured areas, or if your brand of drywall mud isn't offering enough coverage, you may have to do a couple of additional coats of compound. However, in general, you'll need one coat to fill in the seams and three more coats after taping.

Which way do you hang drywall on a ceiling?

Installation starts in one corner of the ceiling with the length of the drywall panels running perpendicular to the direction of the ceiling joists. If the room is wider than the length of the panels, measure and cut additional panels so the panels meet on the center of a joist.

How many screws go into a sheet of drywall?

So, how many screws are needed per sheet of drywall? The short answer: 28 screws are needed for attaching a 4-by-8 sheet of drywall. If it's 4-by-12, it'll take about 36 screws. When screwing drywall sheets (4-by-8) to the studs vertically, use four screws, and start at the top.

Why do they hang drywall horizontally?

Horizontal hanging reduces the lineal footage of seams by about 25%. Keeping the footage of seams to a minimum will result in less taping and a better looking finished job. Hanging horizontally also allows the drywall to flow over the framing so that bowed studs create less of a problem.

Why do you hang drywall on the ceiling before the walls?

Doing the ceiling first means you can lift the wall sheets to make a tight joint. By contrast if you do the walls first you would have to sculpt every edge to make it seat tightly, and/or end up with lots of voids to fill before you tape.

Do you put ceiling or walls up first?

What is the purple sheetrock for?

While all gypsum-based drywall is naturally fire-resistant, the PURPLE family of products is unique because it also resists moisture, mold and mildew. In addition, some PURPLE drywall products also stand up to scratches, scuffs, dents and noise.

What size screw should I use for 1/2 drywall?

When determining what size screws for drywall you need, take into account the thickness of the drywall panels. When working with 1/2-inch drywall panels, use 1-1/4 or 1-3/8-inch nails or screws. When working with 5/8-inch drywall panels, use 1-3/8-inch or 1-5/8-inch screws.