Sectionals are the only furniture purchase where you can get everything right — size, fabric, budget — and still receive the wrong item, because the chaise ends up on the wrong side.
The letters LAF and RAF cause more returns than any other detail in furniture retail, and they are genuinely easy to get backwards.
Here is what the terminology means, which configuration suits which room, and how to be certain before you order.
LAF and RAF: Get This Right First
LAF means Left Arm Facing. RAF means Right Arm Facing. The critical detail is the reference point.
The orientation is described from the perspective of someone standing and looking at the sofa — not from someone sitting on it.
| Stand facing where the sectional will go… | You need |
|---|---|
| Chaise or long side should be on your left | LAF — Left Arm Facing |
| Chaise or long side should be on your right | RAF — Right Arm Facing |
The reliable method: go and stand in the room, look at the wall the sectional will sit against, and point at where you want the chaise. Whichever hand you pointed with is the answer.
Photograph the empty space from your normal entry point and take that photo with you. It removes the ambiguity entirely.
The Configurations
| Type | Typical size | Seats | Best room |
|---|---|---|---|
| Sofa with chaise | 100–110″ overall | 4–5 | Medium rooms; the most common choice |
| L-shaped sectional | 110″ × 70–80″ | 5–6 | Corner placement in a square room |
| U-shaped sectional | 120″+ across | 6–8 | Large rooms; frequent entertaining |
| Modular | Varies by module | Flexible | Anyone likely to move or reconfigure |
| Pit / conversation | Very large | 6–8 | Dedicated media rooms only |
A standard chaise runs 62 to 72 inches overall, which is what makes a sofa-plus-chaise sectional project so far into a room. Leave around 36 inches behind or beside it for a walking route.
U-shapes seat the most people and are the hardest to place. They need a genuinely large room, and they effectively fix the layout — nothing else can go in that space afterwards.
Sectional or Modular?
| Fixed sectional | Modular | |
|---|---|---|
| Orientation locked? | Yes — LAF or RAF at purchase | No — rearrange any time |
| Moving house | May not suit the next room | Reconfigures to fit |
| Delivery | Large pieces; access is critical | Separate modules go through doors easily |
| Seams | Fewer; cleaner lines | More visible joins between modules |
| Cost | Usually lower | Usually higher for equal seating |
| Best for | A room you will keep as it is | Renters; anyone expecting to move |
For anyone on a military posting or likely to relocate within a few years, modular is worth the premium. It solves both the orientation problem and the “will it fit the next house” problem in one purchase.
Will It Fit the Room?
- Mark the full footprint on the floor with tape, including the chaise leg
- Leave 30–36 inches for the main walkway around it
- Allow 14–18 inches between the seat front and a coffee table
- Check the chaise does not block a doorway, radiator or heating vent
- Confirm the corner it sits in is genuinely square — older houses often are not
- Live with the tape for a day before ordering
A sectional in a room that is slightly too small does not look cosy. It looks like the room is full, and every other piece of furniture becomes an obstacle.
Room sizes that actually work
| Room size | Largest sensible sectional | Note |
|---|---|---|
| Under 11 × 12 ft | None — use a sofa and a chair | A chaise will block the walking route |
| 11 × 13 ft | Compact sofa with chaise, under 95″ | Keep the chaise against the long wall |
| 12 × 15 ft | Standard sofa with chaise, 100–110″ | The most common workable pairing |
| 14 × 18 ft | Full L-shape, 110″ × 80″ | Room for a chair opposite |
| 16 × 20 ft and up | U-shape or large modular | Only here does a U-shape make sense |
Below about 11 by 12 feet, a separate sofa and armchair almost always beats a sectional. You get the same seat count with far more flexibility in how the room is arranged.
Our guide to measuring your room for a sofa covers the delivery-route measurements — particularly diagonal depth — which matter even more with sectional pieces.
What Goes With It
Sectionals change the rules for everything else in the room, because an L-shape has no single “front”.
- Coffee table — a square or round one, or two smaller tables; a long rectangle only serves one run of seating
- Rug — size it to the full L footprint, not to the longer side alone
- Lighting — the corner of an L is the darkest spot in most rooms; put a floor lamp there
- Accent chair — usually only one is needed, placed opposite the open side
- Side tables — the outer arm of the chaise often has nowhere to put a drink
Our guides to coffee table proportions and area rug sizing both cover the sectional case specifically.
On construction, frame quality determines whether a large sectional stays square over years of use. The American Home Furnishings Alliance is the US industry body whose members work to recognised manufacturing and safety standards.
Frequently Asked Questions
What does LAF and RAF mean on a sectional?
Left Arm Facing and Right Arm Facing. The orientation is described from the point of view of someone standing and looking at the sofa, not sitting on it — which is the reason it so often gets ordered backwards.
How do I know which side I need?
Stand in the room facing where the sectional will sit and point at where you want the chaise. If you pointed left it is LAF; right is RAF. Take a photo of the empty space with you when you buy.
What room size do I need for a sectional?
A sofa-with-chaise at roughly 110 inches suits a room of about 12 by 15 feet. U-shapes need considerably more — closer to 16 by 20 feet to leave usable walking space.
Is a modular sofa better than a sectional?
It is more flexible and far easier to deliver, but usually costs more and shows more seams. If you expect to move within a few years, that flexibility is worth paying for.
Can a sectional be separated to get it inside?
Most separate into two or more pieces, which is often what makes delivery possible at all. Confirm it before ordering rather than on the day, and check the diagonal depth of the largest single piece.
Bring a Photo of the Room
One photograph taken from your doorway, plus the wall measurements, prevents the single most expensive mistake in this category.
Our living room furniture range in Newport News includes sectionals and modular seating, and we will confirm the orientation against your room before anything is ordered.
Furnishing around it? See our guides to accent chairs, ottomans and TV stands and viewing distances to complete the layout.
The corner of an L-shape needs its own light — our home lighting guide covers floor lamp heights, and side tables and accents fill the gaps a sectional leaves.
Check clearance and specials, spread the cost with no-credit furniture financing, and read our delivery guide before ordering — sectionals are the hardest furniture to get through a door. Unsure on orientation? Send our Newport News team a photo of the room.
