Monitor Arm Hits the Wall Before the Screen Is Far Enough Back

Quick Answer: Swing the arm's elbow out to the side instead of straight back, so the folded arm lies along the wall and the screen can move back.

• The elbow points back and touches the wall: Fold it sideways instead. Use Fix A to turn the elbow sideways
• Even sideways, the arm still touches the wall: Make a little room behind the desk. Use Fix B to set a measured wall gap
• The desk can't move away from the wall: Change where or how the arm mounts. Use Fix C to move the mount point
• Not sure which part touches the wall: Go to Step 1 to find the contact point

• Difficulty: Easy when only the elbow direction changes; moderate if the desk or clamp has to move.
• Tools: A tape measure, painter's tape, and the hex keys supplied with the arm.

Jump to:

• Step 1 - Find What Touches the Wall
• Step 2 - Give the Folded Arm Room
• Step 3 - Check the Screen Reaches Its Distance Without Contact
• Common Mistakes
• FAQ

Why the Arm Hits the Wall When You Push the Screen Back

A two-part monitor arm reaches forward by straightening and comes back by folding. When it folds, the elbow has to go somewhere, and the further back the screen goes, the further out the elbow pokes.

On a desk pushed against a wall, the pole sits close to that wall. If the elbow folds straight back, it meets the wall before the screen reaches the distance you want.

The elbow doesn't have to point back. Folded to the side, the same arm lies roughly parallel to the wall and takes up much less depth.

Problem state: The elbow folds toward the wall, so it touches the wall while the screen is still closer to you than you want.

Corrected state: The elbow folds into open space at the side, or has a measured gap behind it, so the screen reaches your viewing distance with nothing touching the wall.

Critical Safety Warning: Folding an arm closes the gap between its segments, which can pinch fingers. Moving the clamp with the monitor still attached can let the arm tip off the desk, and an empty spring-balanced arm can spring up hard.

These happen when the arm is folded by grabbing its joints, or when the clamp is loosened under load.

• Move the arm by holding the monitor's frame, not the elbow or the joints.
• Remove the monitor before loosening the clamp, with the arm in the removal position its instructions specify, and don't pull the empty arm down by hand.
• Before moving a desk, check that no cable is stretched tight between the desk and the wall outlet.

Step 1 - Find What Touches the Wall

Start by knowing where the screen should go. Sit normally and measure from your eyes to the screen at a distance you find comfortable. How Far Should You Sit from a 27-Inch vs 32-Inch Monitor? explains how to measure a starting distance.

1. Mark the target: Put a strip of painter's tape on the desk where the screen's front should end up.
2. Push the screen back slowly: Hold the monitor's frame and move it toward the mark until something stops it.
3. Look behind the desk: Note exactly what is touching and how far the screen still is from the tape.

What you found decides the next step:

• The elbow touches the wall while pointing back: Go to Fix A.
• The elbow already points sideways and still touches: Go to Fix B.
• Nothing touches the wall, but the arm is fully folded: The arm has reached its shortest length. This is a reach limit, not a wall problem; see How Desk Depth Changes Monitor Arm Reach.
• The clamp body, not the arm, keeps the desk off the wall: That is a separate clamp-clearance problem, so the elbow fixes below won't help.

Step 2 - Give the Folded Arm Room

Fix A - Fold the Elbow Sideways

Use when: The elbow points back toward the wall when the screen is pushed back.

Before you start: Keep your hands on the monitor frame while refolding, because the arm segments close like scissors at the elbow. See where the arm pinches.

1. Bring the screen forward: Pull it forward until the elbow is clear of the wall.
2. Pick the open side: Choose the side with no other monitor, lamp, or shelf in the elbow's path. On a single-monitor setup, the side away from the desk's center usually has the most room.
3. Swing the elbow out: Rotate the arm so the elbow points to that side, then move the screen back toward the tape.
4. Re-square the screen: Turn the monitor head so the screen faces you straight on again.
5. Re-route the cables: Make sure cables follow the arm's new path with slack at the elbow.

Check: The screen reaches the tape with a visible gap between the elbow and the wall. Go to Step 3 to confirm. If the elbow still touches, continue with Fix B.

Fix B - Set a Measured Gap Behind the Desk

Use when: The elbow still touches the wall even when folded sideways, and the room allows the desk to come forward a little.

Before you start: Check every cable running from the desk to the wall before moving the desk, so nothing is yanked from its outlet or port. Review the cable precaution.

You need: One measurement. With the screen at the tape mark and the elbow sideways, measure how far the elbow would sit past the wall if the wall weren't there. In practice, measure the elbow's distance behind the desk's back edge, then subtract the current desk-to-wall gap.

1. Add a little clearance: Plan to move the desk forward by that amount plus a small margin, so the elbow never brushes the wall.
2. Move the desk evenly: Slide both ends forward by the same distance so the desk stays square to the wall.
3. Recheck your seat space: Make sure you still have room to sit and get up comfortably.
4. Use the gap: The new gap gives cables a clean path down behind the desk.

Check: The screen reaches the tape and the elbow clears the wall. Go to Step 3 to verify. If the room can't spare that depth, use Fix C.

Fix C - Move the Mount Point Away From the Wall

Use when: The desk must stay against the wall and the elbow still won't clear it.

Before you start: Take the monitor off before loosening the clamp; a loose clamp under load can tip the whole arm. Read how to unload the arm first.

You need: Your desktop thickness at the new spot, measured straight down from the top surface to where the lower pad will press, and the clamp's stated thickness range from the arm's guide.

1. Choose a side position: Moving the clamp along the back edge toward one side lets the elbow fold into open space beyond the screen.
2. Check the new spot: The pads need flat, solid desktop above and below, clear of frame rails, drawers, and cable trays, with no beveled edge or hollow section.
3. Confirm the reach: From the new spot, the arm must still reach the screen's target position without extending fully.
4. Install and tighten: Fit the clamp as its guide directs, then remount the monitor.
5. Consider a different arm if needed: If no spot works, an arm with shorter segments, or a single-segment arm, needs less room to fold.

Check: From the new mount, the screen reaches its tape and the arm clears the wall. Go to Step 3 for the final check. If the clamp hits a frame rail at the new spot, see Monitor Arm Clamp Hitting the Under-Desk Metal Frame.

Step 3 - Check the Screen Reaches Its Distance Without Contact

Move the screen back to the tape mark, then through the full range you normally use: closer, further, and side to side. On a standing desk, repeat at sitting and standing heights.

PASS: The screen reaches the tape mark, no part of the arm touches the wall anywhere in your normal range, cables stay slack, and the screen faces you squarely.

FAIL: The arm still touches the wall at some position, the screen stops short of the tape, or a cable goes tight.

NEXT ACTION:

• Touches only when swung to one side: Keep the elbow on the other side, as in Fix A, or add a little more gap with Fix B.
• Touches only at standing height: The arm's angle changes with height. Measure the gap again at that height and widen it.
• Stops short of the tape with nothing touching: You've reached the arm's folding limit. See How Desk Depth Changes Monitor Arm Reach.
• A cable goes tight: Add slack at the elbow for the new fold direction.

Common Mistakes

Mistake: Pressing the elbow against the wall as a stop.

What happens: The wall gets scuffed, and the constant sideways push loads the arm's joints and clamp in a direction they don't normally carry.

Instead: Leave a visible gap at every position you use.

Mistake: Turning the whole monitor to fit instead of refolding the arm.

What happens: The screen ends up angled away from you, and you twist to read it.

Instead: Refold the elbow, then turn the head so the screen faces you squarely.

FAQ

Does folding the elbow sideways weaken the arm?

No. Swinging sideways is part of the arm's normal movement, and its weight rating doesn't depend on which way the elbow points.

Would a grommet mount solve this?

Only if the grommet hole sits further from the wall than the clamp spot. The elbow's folding room depends on the pole's distance from the wall, not the mount type.

This guide covers articulated desk monitor arms on desks placed against a wall. Wall-mounted arms have their own clearance limits set by the wall plate's position.

Written and edited by Lio Lim

Every guide on The ErgoDesk Lab is reviewed before it goes live so each step leads to a clear next action. Spotted something unclear or wrong? Let us know, or read how these guides are made.