IKEA · Chairs & Stools
How to assemble IKEA NÄMMARÖ Seat Section for Modular Sofa
Step-by-step IKEA NÄMMARÖ Seat Section for Modular Sofa assembly: 17 illustrated steps, an animated video, the hardware list and the tools you need — following the official instructions (AA-2317128-6).
- 17 illustrated steps
- 13 steps in the manual
- 2:25 video
- 63×63×32 cm cm

What you need
Tools
- Flat-head screwdriver
- Allen key (included)
You’ll need: a flat-head screwdriver.
Hardware in the box
| Part no. (as printed in the manual) | Qty |
|---|---|
| 113134 | 8× |
| 117794 | 12× |
| 114574 | 4× |
| 128832 | 8× |
| 128995 | 4× |
| 113153 | 8× |
| 10089543 | 2× |
Step-by-step assembly

Step 1
Lay the seat face down on a rug.
Work on a soft surface so the seat doesn’t get scratched.

Step 2 · manual step 1
Push 4 dowels (128995) into the seat.
Use the short dowels here — not 128832.

Step 3 · manual step 2
Place the 2 rails marked C onto the dowels.
The holes in the rail ends point outwards — see the manual, step 2.

Step 4 · manual step 3
Fix the rails to the seat with 6 bolts (117794).
Use the Allen key — not the pointed 113134 bolts.

Step 5 · manual step 4
Push 8 dowels (128832) into the ends of the rails.
2 in each end.

Step 6 · manual step 5
Push one end frame onto the rail ends.

Step 7 · manual step 6
Fix the end frame to the seat with 3 bolts (117794).
Use the Allen key.

Step 8 · manual step 7
Push 2 cross dowels (113153) into the rails.
Turn the slot with a flat screwdriver so the hole faces the leg.

Step 9 · manual step 7
Screw 2 bolts (113134) through the legs by hand.
Don’t tighten them fully yet.

Step 10 · manual step 8
Slide the 2 bottom rails into the legs.

Step 11 · manual step 9
Add 2 cross dowels (113153) and 2 bolts (113134).
Turn the bolts in by hand — don’t tighten yet.

Step 12 · manual step 10
Push the second end frame onto the rail ends.

Step 13 · manual step 11
Fix it to the seat with 3 bolts (117794).
Use the Allen key.

Step 14 · manual step 12
Push 4 cross dowels (113153) into the rails.
Turn the slots with a flat screwdriver so the holes face the legs.

Step 15 · manual step 12
Screw 4 bolts (113134) through the legs by hand.
Don’t tighten them fully yet.

Step 16
Turn the seat section over onto its legs.

Step 17 · manual step 13
Now tighten all 8 bolts (113134) with the Allen key.
Until the heads sit flush against the legs.
Tips & safety
- Building a sofa? Backrests are sold separately. Link sections with the 2 connectors (10089543) and 4 screws (114574) — see manual AA-2317129.
- Assemble on a soft surface. The manual shows building on a rug, so the seat doesn’t get scratched.
Official instructions
This guide follows IKEA’s official assembly instructions (AA-2317128-6). Keep the printed manual to hand — if anything differs, the manual is right.



