Schwelle
bank
barrier
body rocker panel
body sill
breast
cill plate
cill
cross sill
cross tie
cross-tie
dam
dome
door sill
floor bar
ground plate
ground sill
hump
landing threshold
ridge
rise
rocker panel
runway threshold
sill plate
sill
sleeper
sleper
sole plate
speed bump
speed control hump
speed hump
stair
step
swell
threshold THR
threshold of the door
threshold
tie
treshold