No I aint leaving the metal on The trusses are plenty strong enough plus if you look at the garage walls you will see some
pillars, im putting H beams on top of these to give more support, plus I can fit rollers on em.
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Thats a cracking space to have. Disappointed there's no pit though. Yes H beams are needed, I have 2 in my garage, wish I could have got away with doubling the width (but too risky).
Wonder how long it will take before you struggle to get 2 cars in there.
J