What can I do about my knee wall? You can install knee walls to support roof rafters and attach them to the bottom plate of a structure. You can also create a cubby space behind a knee wall, the same way you would a reading nook or in an attic with a ceiling.

Are knee walls load bearing? These low walls help define the living space by creating vertical surfaces between the sloping rafters and the finished floor. They’re typically framed with 2x4s and built 4-feet-high so they can easily be covered with full sheets of drywall. In most cases a knee wall is not a load-bearing partition.

How do you build a knee wall storage? 

What is the difference between a pony wall and a knee wall? A pony wall is nothing more than a short wall, and the term is often used interchangeably with “knee wall” or “cripple wall.” Pony walls, like regular walls, have top and bottom plates, that is, the horizontal members that the vertical studs fasten to.


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What can I do about my knee wall? – Additional Questions

Do you need a top plate for a knee wall?

The number one way that knee walls are installed incorrectly is to build them without a floor to top plate. People do this, not understanding the purpose of those plates. They incorrectly think that all they need to do is scab 2”x 4” from the ceiling joists to the rafters and cover them with sheetrock to make a wall.

What is the purpose of knee walls?

A knee wall is a short vertical wall, roughly two or three feet high, thats used to support rafters in the roof. It also blocks off the space that’s too small (due to the sloping roof) to use for anything in an attic.

Why do they call it a pony wall?

Pony walls differ from knee walls, which are generally intended to support something such as a countertop, handrail, or rafter. The supposed origins of pony walls confirms the name: It’s said short walls were originally added to stables for ponies.

What is the purpose of a pony wall?

A pony wall creates a visual and functional barrier between two areas of a large room or open floor plan, without closing them off from one another and leaving either segment feeling cramped. Because it doesn’t extend all the way to the ceiling, the newly created spaces retain an open look and feel.

Are pony walls outdated?

Pony walls were famous back in the 1960s, so some people may think they’ve gone out of style by now. But believe it or not, these short, usually non-weight-bearing walls may have lots of useful and aesthetic purposes around your house. Pony walls are actually coming back in style in some home designs.

What is the height of a knee wall?

Knee walls are often referred to as a half-wall or partition wall. They extend from the floor to a height of approximately 3 feet (91.44 cm) and are often constructed around or up against a shower stall or bathtub surround.

How do you insulate a knee wall?

The best materials for the attic, and thus the knee wall, are spray foam, fiberglass, and cellulose. If you plan to insulate the roof deck of your attic, then you would use spray foam or fiberglass batts. Cellulose is much better suited for the attic flat.

How much does it cost to build a knee wall?

Cost to Build an Interior Wall:
National Minimum Cost $2,500
National Maximum Cost $6,500
National Average Cost $3,300
Average Range $2,500-$6,500
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Do knee walls support roof?

A knee wall is a short vertical wall that supports the roof rafters and is about two to three feet high. It also serves to close off space in the attic that is too small (due to the slanting roof) and to make it functional.

Can knee walls be removed?

It’s not uncommon for builders to place them up against the rafters while working on the roof. Once the roof is complete, they may take the knee walls down or leave them up. Knee walls aren’t technically required for a structurally sound home or building, but they do take some of the load off the rafters.

How do you frame a knee wall in an attic?

  1. The knee wall will be built on the floor of the attic, and then tipped into place against the rafters.
  2. Cut six lengths of 2×4, each 2 1/2 feet long.
  3. Use a template to determine the angle on each of those six pieces of 2×4; draw a line across that angle.
  4. Use a miter saw to cut each 2×4 on that angle.

What is a knee wall truss?

A knee wall is a short stud wall that extends from the floor to approximately chest height where it attaches directly to the underside of the pitched roof (photo 2). These walls enclose the lower portion of the roof rafters, or truss system, along the eave line of the structure.

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