groundsill

Lowest structural beam

A groundsill is the lowest horizontal timber in a frame structure, resting directly on the foundation or ground.

It serves as the base upon which vertical framing members are erected.

Also called a ground plate or mudsill: The carpenters replaced the rotted groundsill before rebuilding the wall.

construction

plate

Flat dish for food

  • sole plateIron's heated underside
  • mudsillFoundation's lowest horizontal timber
  • baseSupporting bottom structure

footing · foundation · substructure · underpinning · frame · timber frame · load-bearing · anchorage · leveling · moisture barrier

materials

timber

Wood for construction

  • lumberSawn wood for building
  • oakQuercus genus member
  • cedarDurable, fragrant conifer

redwood · fir · pressure-treated wood · hardwood · beam · hewn · squared · log · concrete · steel

historical

post-and-beam

Construction using upright-and-crosspiece joints

log cabin · mortise · tenon · joinery · restoration · preservation · vernacular · traditional · craftsmanship · replacement

Opposites
vertical position in frame structure

groundsillwall plate

Electrical fixture trim

ridgepole · ceiling joist

structural orientation

groundsillstud

Upright wall framing

post · upright · king post · corner post · joist

Family

ground, threshold, sill, grounding, windowsill, sills, groundsel

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G