The Spruce / Margot Cavin

Drywall

Drywallis the rigid gypsum-based board that forms most walls in homes.

Drywall is either screwed or nailed directly to the wall studs.

A non-load-bearing wall supports only its own weight.

Drywall and wooden support beans exposed during home renovation

The Spruce / Margot Cavin

In some homes, load-bearing walls are 24 inches apart, on-center.

Insulation

Exterior walls usually have fiberglass, cellulose, mineral wool, or foam insulation.

Older homes may not have insulation behind the drywall.

Greenboard drywall leaning against a wall.

The Spruce / Kevin Norris

Interior walls usually do not have insulation but sometimes they may have it as a soundproofing rig.

Headers

Headers are horizontal members that run across the top of doors, windows, and entryways.

The wider the header above the window, the larger the window.

Studs at bottom of wooden support beams

The Spruce / Margot Cavin

Thus, you receive more air and light.

Outlet cables tend to be about 12 inches high.

Light switches are around 48 inches high, so expect to see electric cables around that area.

Pink foam insulation in between wooden structure beams

The Spruce / Margot Cavin

You should not find loose electrical wires: only wires bundled together as either metal- or plastic-sheathed cables.

Pipes will run vertically more than horizontally through walls.

Fireblocks

Fireblocks are short horizontal studs added perpendicular to the wall studs to slow fire movement.

New home construction with plywood siding

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Many fire codes require fireblocking, which is a simple, effective fire barrier between floors.

It can seal vertical and horizontal concealed draft openings.

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Vermin and Insects

Even the tightest wall may end up withspidersand cobwebs.

Exposed electrical outlet in between drywall wooden beams and wires

The Spruce / Margot Cavin

Rats andmicedie within walls and remain there until found during remodeling projects.

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Construction Debris

Careless builders sometimes let construction debris fall down wall wells.

There is a good chance that you will encounter some screws or nails.

Plumbing tubes and pipes in front of exposed dry wall with insulation

The Spruce / Margot Cavin

Keys sometimes snap off on their own and fall into the wall.

you’re free to hang items from drywall by driving fasteners through the drywall and into the studs.

This provides maximum support for shelving, cabinets, large pictures, and mirrors.

Wall Fireblocking

FOTOGRAFIA INC. / Getty Images

Where no studs are available behind the drywall, you canuse drywall anchors.

Sheetrock is a brand of drywall or gypsum panel owned by USG.

The term Sheetrock is sometimes used to refer to drywall in general.

Cobwebs in Wall

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It costs between $7 and $16 per square foot to frame and drywall a room.

How to Determine if Exterior Walls are Load or Non-Load Bearing and Why Thats Important.

2308.5.1 Stud Size, Height and Spacing.

Building Code 2021 of Illinois.

Advanced Wall Framing Technology Fact Sheet.

157.78 MINIMUM MAINTENANCE STANDARDS.

City of Hollywood Inspection Code.

R302.11 - 2018 International Residential Code (IRC)