Sill

We have compiled a glossary of common masonry and tuckpointing terms to help you make informed decisions about your next masonry project. If you have any questions or want to put our decades of experience to work for you, contact us!


A sill is the horizontal slab of stone or wood running under the bottom of a window or door. In masonry buildings, the bottom of a window usually rests on a piece of limestone called a windowsill (see photo below). In masonry buildings, the bottom of a door usually sits just above a piece of limestone called a door sill or threshold.

Example of sills

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