Modular sofa care
The lounge looks neatly lined up in the morning, but a gap has opened beside the chaise by evening. Before ordering a packet of sofa brackets, work out which parts are moving and how your particular lounge is meant to join together. That gives you a much better starting point than trying another quick fix.
First, check what is actually moving
Look at the sofa as it stands, without pulling sections apart to test them. The cushion edge, the upholstered frame below it and the feet give you different reference points. A shifting cushion can leave a visible gap even when the frames remain in place.
| What you notice | Where to start |
|---|---|
| The whole arrangement has moved across the floor | Ask about the furniture’s feet and floor compatibility. This alone does not identify a faulty module join. |
| A seat cushion shifts while the frame stays put | Use the cushion’s original positioning and fastening instructions. |
| The gap between two upholstered frames changes | Identify that pair of modules and check how the model joins them. |
On a phone, swipe the table to see each column.
For the second situation, our guide to couch cushions sliding forward covers the separate cushion question.
Find the instructions for your exact lounge
Start with the order confirmation, model label or paperwork kept after delivery. Record the range, version and configuration if they are shown. For a second-hand lounge, ask the previous owner for those details; a photograph of a similar sofa online is not enough to confirm its fittings.
Look for the manufacturer’s own instruction library. Check the model name and pictured components before borrowing a step: a guide for another range may describe different fittings.
The important question is: Are these particular units intended to connect in this arrangement, and what should be present at this join? If the manual or parts list does not answer it, send the seller a layout photo. Do not assume every edge of every module can connect to another one.
Make a simple map of the problem
Sketch the lounge from above and label the modules A, B and C. Mark the problem as “A–B join” rather than “left side”, which can mean something different to the person looking at your photo. Add an arrow showing the front of the sofa.
Then make four short notes:
- When it started: after delivery, a move, cleaning behind the sofa or a recent rearrangement, if known.
- Where the gap changes: at the front, at the back or along the whole join.
- What else changed: the layout, rug position, feet or an added cover. Record changes without deciding they caused it.
- What is visible: a fitting on one side, a loose piece on the floor, fabric in the join or no accessible hardware.
A useful example note is: “The A–B gap opens at the front. I noticed it after moving the chaise. I have not adjusted the fittings.” There is no need to recreate the movement, force the gap wider or put your fingers into a concealed mechanism.
Use the guide to decide what you can check
With the correct manual beside you, compare the illustrated parts and layout with what you can see safely. Check whether an added throw, strap or tucked fabric is covering an area the instructions need to keep accessible. Do not pull trapped fabric through a fitting.
If the guide includes a routine connection check you can carry out with the stated help and equipment, follow that exact sequence. Do not substitute a video for a different sofa. Assembly can involve more than one person: King Living’s Jasper guide specifically requires two people for its assembly. That instruction belongs to Jasper; use your own model’s requirements.
Stop and arrange help if a part appears bent, broken, loose or missing; the frame rocks; or the next step requires lifting or access you cannot manage safely. Keep the affected section out of use while asking about apparent damage or instability. A gap alone cannot tell you which component needs replacing.
Before buying a connector, ask for a confirmed match
“Sofa connector” is a category, not a compatibility guarantee. Some joiners are designed for named sofa models and a particular frame construction. A magnetic joiner listed for specific steel-frame sofas is not evidence that it suits a different lounge.
Ask the supplier for the correct part reference, how many are required at the affected join and whether any matching pieces also need replacement. Confirm who should fit them and request the instructions before ordering.
A similar shape or a matching screw spacing is not enough to establish suitability. Avoid drilling new holes, bending a fitting back, tying modules together or adding adhesive as an improvised repair. Likewise, a pad under a foot does not answer whether the join has all its intended components.
Give the supplier a question they can answer
Send the whole layout, the marked join, any fittings visible without dismantling or lifting, and the model label if accessible. Include the purchase details privately, along with your short history of the change. If a part has come away, keep it and photograph it separately.
You could write: “These photos show my model and current configuration. The A–B join changes as described in my notes. Can you confirm the intended connection, identify any missing parts and tell me which checks or service steps are appropriate?”
For a newly delivered lounge, contact the seller before modifying anything. If the model cannot be identified, a furniture repairer can assess the construction. Keep the reply with the manual, particularly if it confirms a replacement part or a configuration change.
Plan the cover around the settled layout
Once the connection issue has been resolved, choose coverage for the arrangement you intend to keep. A throw or seat cover can change the look and feel of the lounge, but it is not a connector or a repair for the frame underneath.
Separate pieces may suit a layout where each module needs its own coverage. Check the actual areas, required quantities and access to fittings; a full-sofa photograph does not necessarily show what comes in one purchase. Our modular sofa cover guide explains that planning step.
If a curved section is involved, the rectangular-cover guide for curved sofas helps you compare the surface shape. Let the furniture’s approved arrangement set the boundaries for the fabric.
Frequently asked questions
Should every modular sofa join make a clicking sound?
No universal sound confirms a connection. Use the engagement check specified for your model. Do not keep forcing two sections together because a tutorial for another sofa promises a click.
Can I put a large cover over the gap to hold the sections together?
No. A decorative cover is not a restraint for sofa modules. Resolve the movement first, then fit the cover without using its tension to pull sections together or hide the join.
The sections separated after rearranging the lounge. Does that prove I fitted them incorrectly?
No, but the timing is useful information. Compare the new configuration with the correct guide and tell the supplier what changed. Do not assume the original parts support every possible arrangement.
Is a small gap between modules always a fault?
A photograph or gap measurement alone cannot establish that. The intended spacing and connection depend on the design. Ask the maker to compare your layout with its specification, especially if the gap has changed or the furniture feels unstable.
What if I cannot find the original assembly instructions?
Contact the seller or manufacturer with the model details and clear photos. Ask for the correct manual and parts list. Leave concealed fittings alone until the construction and safe access method are established.
Before you make changes
Researched on 18 October 2026. Use the instructions for your exact sofa model when checking a join. The illustrations show what to observe and record; they do not show an assembly method.
