Sliding door alignment
Also called: patio door realignment, door adjustment
Quick answer: sliding door alignment means adjusting the sliding panel so it sits level, runs straight in its track and meets the lock. On most patio doors it is done with the roller adjustment screws. A door out of alignment drags, rubs the frame or will not latch.
- Tapered gap, narrow at the top and wide at the bottom on the lock side
- Latch below the keeper, so the lock misses or needs a lift on the handle
- Low end, the corner of the panel that has dropped toward the track
- Level line, the top of the panel should run parallel to it
How to check and adjust
Work in this order. Most doors line up again within the first three steps.
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Clean the trackGrit under one roller can tilt the panel on its own. Vacuum and wipe it first.
Safe to do yourself
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Close the door and read the gapLook down the lock side from top to bottom. A taper shows which end is low.
Safe to do yourself
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Raise the low endTurn that end’s screw a little, then test the slide and the lock.
Safe to do yourself
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It still drags or won’t lockWorn rollers, a bent track or a shifted frame: have it checked.
Call a pro
Fix it yourself or call a pro
- Safe yourselfVacuum the track and turn the adjustment screws in small steps until the gap is even and the lock catches.
- Take careA panel that has come off the track. Glass panels are heavy and tempered glass can shatter: two people at least, or call a pro.
- Call a proScrews that spin or do nothing, a bent track, or a frame pushed out of square as the house settled.
Step by step: how to realign a patio door.
Door won’t line up or latch?
Select Sliding Doors handles sliding door roller repair and realignment across Dallas-Fort Worth. Mon to Sat, 7am to 10pm.
Questions people ask
How do I know my sliding door is out of alignment?
The door drags or rubs the frame, the gap along the lock side is uneven, or you have to lift or push the handle to lock it.
Which way do I turn the adjustment screw?
It depends on the brand. Make a quarter turn and watch the gap under that end of the panel. If it closed up, turn the other way.
Why won’t my door lock after I adjusted it?
The keeper on the frame may need moving, or the latch itself may be worn. Our guide covers what to check when a sliding door won’t lock.
Related terms
Photo: own media library. Diagram: Select Sliding Doors.
