Post-and-lintel system
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Post-and-lintel system, in building construction, a system in which two upright members, the posts, hold up a third member, the lintel, laid horizontally across their top surfaces. All structural openings have evolved from this system, which is seen in pure form only in colonnades and in framed structures, because the posts of doors, windows, ceilings, and roofs normally form part of the wall.
You can go to the place where you got them done and ask them to take them off. Or you can use a spare fake nail and wiggle it underneath the acrylic and it should pop off. Another way you can grow your nails out and clip off the acrylic nail with nail clippers as your nail grows.