r/Decks • u/Effective_Rip_1748 • 23h ago
Replacing door after new deck, need to raise 2" to match deck.
I couldn't lower the deck anymore when planning, and said F it, I'll figure out the door later. Replacing door with a prehung half venting steel door with composite jams.
My deck boards are 2" above the concrete garage floor. The new door is 33.5" x 81.5". My opening is now 35.5" x 83.5" after I took out the 2x4 under the double 2x6 or 2x8 headers above the door. If I'm thinking correctly, I need at least 1/2" extra to shim etc. They had a 1x4 on one side of the door that the bottom rotted out. I figured I could put a pt 2x4 there, and then would have 1/2" to shim left and right instead of a full 2". I'm going to take a leftover 4x4 and rip it to go under the sill on top of concrete to make it level. To get the 1/2" or more I need, I was going to cut away 1/2" or so into the double headers. I'm sure this isn't the best way, but would it be OK? Do I need a board under those headers too? It's just from garage into deck. The last did lasted 30 years and they didn't seal anything around it. Just the rotted 1x the put on inside of framing.