Open Up a Ceiling With a Steel Sandwich
Bolted between rafters, an angled steel flitch plate can eliminate the need for rafter ties in cathedral ceilings.
Everyone loves a cathedral ceiling, but when you remove the framing that makes most ceilings flat, you remove the lumber that keeps the walls from spreading apart. There are a few conventional solutions: a structural ridge beam, exposed collar ties, and scissors trusses. An unconventional option is to use a welded steel flitch plate sandwiched between two common rafters. This method gives more headroom than scissors trusses and is far cheaper.