Sill plate

Sill plate

Sill plate -a horizontal framing member, usually of treated wood, which lays flat on top of the foundation wall and upon which the floor joists and band or rim joist rest.

foundation and wall detail showing sill plate

typical foundation and wall detail


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About Tony Wood

Tony is a life time resident of North Carolina with over 30 years experience in multiple facets of the industrial, commercial and residential construction industry. For the past 23 years he has owned and operated Wood's Home Maintenance Service, providing services primarily in Johnston, Wake and Sampson Counties of North Carolina. ______________ ______________________________________________________ The information contained in this Blog is opinion derived, from hands on experience of over 30 years in the construction industry and by extensive research by the author. All postulations are referenced to the geographic location in which this experience was gained.
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2 Responses to Sill plate

  1. Chris G says:

    I would like to cut an entrance to the crawl space on the exterior of our house (currently have an interior entrance). The exterior is one story that is all brick facade. Behind this is block. The entrance would be 30″ wide by 35″ length. I am trying to figure out if I need a steel lintel and if I should use a flat steel lintel or an angel steel lintel. Should the lintel be 12″ deep to cover block and brick widths? Should I use 2 lintels: one for the block (that is angled) and another for the brick (that is angled)? Can the lintel be under the sill and therefore be touching the wood sill?

    • Tony Wood says:

      Chris,
      There are multiple factors that should be considered in determining the proper way to support the proposed entrance. The block foundation typically supports the framed structure. Depending on how the house is framed and the location of the entrance it may require little or no support above the opening, or it may require an angled steel lintel. You should definitely consult an engineer or masonry contractor that can look at the area you intend to cut in the entrance and make a definitive determination on the proper course of action.

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