Accepted Answer: Drywall should definitely not touch concrete as moisture will wick (ie flow up the surface as in a candle/lamp wick) into the drywall and encourage mold growth. 3/8″ should be sufficient – your prop up plan is not only appropriate, but a common technique used by drywallers.

How much space is needed between drywall and concrete?

a ½ inch to ⅝ inch





It might sound counter intuitive at first to leave space between your floor and your wall, but you should always leave a ½ inch to ⅝ inch gap between drywall and the floor.

Do you leave a gap between drywall and floor?

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.

What should I put between drywall and concrete?

The solution is covering concrete with a vapor barrier, which acts like a resistant cell membrane instead. With a shield in place, the drywall is safe. Typically, a stud wall is then installed against the concrete, but furring strips are quick, easy and take up less space.

Is it OK for drywall to 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.

How far off the basement floor should drywall be?





Drywall should definitely not touch concrete as moisture will wick (ie flow up the surface as in a candle/lamp wick) into the drywall and encourage mold growth. 3/8″ should be sufficient – your prop up plan is not only appropriate, but a common technique used by drywallers.

How do you seal a gap between drywall and floor?

Place the tip of the caulking gun into the gap between the wall and subfloor. Squeeze the trigger to leave a 1/4-inch bead of caulking inside the gap. Slide the caulking gun along the wall to leave a continuous bead, instructs Home Depot. Check that the bead has come into contact with the rough framing of the wall.

How much space should be between floor and wall?

How much space should be between the floor and wall? Finish carpenters and painters attempt to produce a finished product that has no gap between the floor and the wall. However, gaps smaller than 1/8″ will generally not draw the eye and will not impact the overall home feel or value.

How much of a gap is too much in drywall?

Another situation that calls for filling is a drywall gap between sheets that’s more than about 1/2 inch wide. If you tape over a wide gap like this without filling it first, the tape will flex, and the joint compound covering it will chip away.

Why is there a gap between wall and floor?



Gaps between your walls are often caused by a home’s foundation settling into poorly compacted, moisture-softened, or shrunken soils below the structure. Few issues can make a homeowner’s heart drop quite like noticing a gap between the walls and floor (or ceiling) of a property.

Should drywall be staggered?

Generally, yes, sheetrock should be staggered. Most drywall contractors recommend staggering sheetrock boards so that the joints in one row do not match up with the joints in the next row, which adds strength to the wall or ceiling and helps minimize cracks.

How many screws go into a 4×8 sheet of drywall?

Use about 32 drywall screws per sheet of 4-foot by 8-foot drywall installed horizontally on a wall. This total is comprised of four screws on the five middle studs and six screws on each of the two sides.

Why do you drywall the ceiling first?



When hanging drywall, always hang the ceiling first. This is the hardest drywall to hang, so get a partner and go slow. Large cracks due to misaligned sheets are hard to repair because the extra mud required to fill them will constantly fall out and drop to the floor (or worse, down the back of your neck!).

When Drywalling a room where do you start?

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 you nail or screw drywall?

While nails tend to be more flexible and hold up better against shear pressure—or lateral force—screws have much better grip and tensile strength, which ultimately keeps drywall from pulling away from the studs. When it comes to holding power, screws simply can’t be beaten.

Does drywall have to end on stud?

Problem. All edges of all sheets of drywall must land on a solid surface such as a stud. A hanging drywall edge may work in the short-term, but in the long-term it can result in cracks and other serious wall issues.

Is it better to install drywall vertically or horizontally?



How to Hang Drywall on Walls: Vertical or Horizontal? On commercial jobs, fire codes often require seams to fall on the entire length of the framing, so the drywall must be hung vertically. However, on residential jobs, the drywall on the walls is typically hung horizontally.

Why do drywall screws pop?

Screws typically pop out of drywall for one of two reasons: they were installed too deep, or the studs have expanded and contracted. If you drive a screw too deep through the drywall and into the stud, it may pop out. As you may know, drywall panels are covered in a thin layer of paper-like material.

Which side do you cut drywall?

In most cases, drywall is cut by scoring through the paper on the finish side (the one with white paper) using a sharp drywall knife.

  1. As soon as you notice the blade dulling, turn it around or replace it. …
  2. Cut the brown paper on the back of the board at the break to complete the cut.

What are the two types of seams between drywall sheets?

When installing drywall flat against a stud, there are two types of drywall joints, or seams, you can make: the butt joint or the tapered joint. In many cases, the type of joint you use is dictated by the application. But in a few instances, you may have a choice between butt and tapered joints.

How do you smoothly cut drywall?




Quote from Youtube video: And if you're working with larger pieces you'll be able to put your knee into it okay it all depends on how big the piece is we're working on a very small piece pull it to the edge of the table.