Stem Wall Construction

What This Service Involves

A stem wall is the short concrete or block wall that rises from the footing to support the framing and lift the structure above grade. We form and pour reinforced walls tied into the footings, setting anchor bolts and hold-downs so the frame connects securely for seismic performance. Raising the framing above grade this way keeps wood away from the wet soil and standing water common in Puget Sound yards. We detail the top of the wall level and true so the sill plate and floor system start out square. Vents, access, and utility penetrations are cast in place per the plan.

Benefits

Framing lifted safely above wet grade and standing water; Reinforced walls tied into the footings below; Anchor bolts and hold-downs set for seismic connection; A level top course for a square sill and floor; Vents and penetrations cast in exactly where needed

Our Process

1) Confirm footing elevations and lay out the wall lines; 2) Form and reinforce the stem walls to engineered specs; 3) Pour, set anchor bolts and hold-downs, and level the top; 4) Strip forms, cast in vents and penetrations, and inspect

What Affects the Cost

Wall height and total perimeter length to build; Reinforcing steel and concrete or block specified; Anchor bolt and hold-down hardware the frame needs; Cast-in vents, access, and utility openings; Site access for forming and placing concrete

Best Time of Year

Stem wall pours are scheduled around drier windows and protected from heavy rain so the concrete cures to full strength.