TL;DR

Sofa beds come in single, double, and queen, but the size that matters most is the deployed bed, not the sofa. The Eva Slideaway Sofa Bed is a double. Before buying any sofa bed, measure your room with the bed open, check your delivery path, and note that 'queen' sofa bed labels don't always match the standard Australian queen mattress size of 153 x 203cm.

Product pages list the sofa width. That's not the number you need.

The measurement that tells you whether a sofa bed will work in your room is the deployed bed size: specifically, how much floor space it takes up when open, and whether you can get in and out comfortably without crawling over furniture.

Most people measure the sofa. They don't measure the bed. That's how sofa beds end up blocking room exits or pressed against walls with no access on one side.

This guide covers sofa bed dimensions from single to queen, how to measure your room properly before buying, and the delivery path calculation most people skip until it's too late.

Standard sofa bed sizes in Australia

Sofa bed size names follow the same rough convention as mattress sizes, but the actual dimensions often vary by brand and mechanism type. 'Queen' doesn't always mean 153 x 203cm when deployed. Before ordering, confirm the deployed mattress dimensions in the product specs, not just the sofa width.

Important note on queen labelling: the standard Australian queen mattress is 153 x 203cm. Many sofa beds sold as 'queen' deploy to 145-155cm wide, which is slightly narrower. If you're buying a queen sofa bed specifically to use standard queen linen, confirm the mattress dimensions before purchasing.

The Eva Slideaway Sofa Bed comes in one size: a 3-seater sofa that converts to a double bed. In sofa mode, the total width is 198cm (188cm across the seating elements), 111cm deep. Deployed as a bed, the unit extends to 153cm total depth, giving a double bed sleeping surface.

What does a 3-seater sofa bed look like in a room?

A 3-seater sofa bed typically runs 180-210cm wide as a sofa. In sofa mode, the depth is usually 90-115cm front to back, comparable to a standard sofa.

When deployed, the depth changes significantly. The bed extends out from the sofa frame, adding considerably more depth. A sofa that's 111cm deep in sofa mode, like the Eva Slideaway Sofa Bed, extends to 153cm deep when fully deployed as a bed. The bed takes up meaningfully more of the floor in front of the sofa.

In a 3.5m x 3.5m room, a 3-seater sofa bed takes up most of the usable floor space when deployed. Plan for that before ordering.

For deployment clearance, budget at least the bed's full deployed depth as open floor space in front of the sofa, plus 50cm on each side for getting in and out. For the Eva Slideaway Sofa Bed, that means you need a minimum of 153cm of clear floor space in front of the sofa, plus access room on each side.

How to measure your room before buying

Three measurement categories: room floor space, delivery path, and deployed bed clearance.

Room floor space

Start with the room in sofa mode. Measure the sofa footprint (width x depth) and check it fits where you plan to put it, with space for traffic flow around it.

Then simulate the deployed bed. The bed extends out from the front of the sofa, usually toward the centre of the room. Put tape on the floor to mark where the deployed mattress edges will fall. Check whether you can still access the room easily, whether the bed blocks any doors, and whether there's 50cm of clearance on at least one side.

If the room barely fits the sofa, it probably won't work with the bed deployed.

Delivery path

This is the step most people skip until they're standing in a hallway with a 190cm sofa that won't turn the corner.

Measure every tight point between the truck and your room: front door width and height, hallway width, any corners or turns, room door width and height, and staircase width and ceiling height if applicable.

A quick note on doorways: furniture doesn't need to fit flat through a door. It can be tilted. The effective clearance of a doorway is closer to its diagonal measurement. A door 80cm wide and 200cm tall has a diagonal of approximately 215cm, meaning furniture up to around 215cm in its narrowest dimension can usually be angled through.

The Eva Slideaway Sofa Bed arrives in four boxes. The largest is the back and arms section at 204cm long, 86cm wide, and 23cm high. That's the dimension to check against your delivery path.

Deployed bed clearance

When the bed is open, you need:

• At least 50cm on each accessible side (for getting in and out)
• At least 60cm on the main walking path past the bed
• The bed must not block any room exit

This is where rooms with limited floor space tend to fail. The sofa fits. The deployed bed makes the room unusable.

Measurement checklist before you order:

• Front door: width x height (both panels if double doors)
• Hallway width at narrowest point
• Turn/corner space (corridor width for L-turns)
• Room door: width x height
• Room floor space: width x depth in sofa mode, then mark deployed bed footprint with tape
• Clearance each side of deployed bed: minimum 50cm
• Clearance on main walkway past deployed bed: minimum 60cm

The measurement mistake most people make

Two errors come up constantly.

The first is measuring the sofa dimensions and not the deployed bed. The sofa fits the space. The bed blocks the wardrobe, the window, or the door. This happens most often in bedrooms used as guest rooms, where the sofa sits against a wall and the deployed bed has nowhere to go.

The second is measuring the room but not the delivery path. Sofa beds are large pieces of furniture, often 190cm or wider and 90-115cm deep. They don't compress. A sofa bed that fits your living room perfectly can still be impossible to get through your front door, around a hallway corner, or up a flight of stairs.

Both measurements are necessary. Do both before you order.

FAQs

What size is a queen sofa bed when open?

A queen sofa bed typically deploys to 145-160cm wide and 195-205cm long, depending on the brand and mechanism. Note that this is often slightly narrower than a standard Australian queen mattress (153 x 203cm). Always confirm deployed dimensions in the product specs before ordering.

Will a queen sofa bed fit in a standard Australian bedroom?

Depends on the room layout. A standard bedroom is 3 x 3m or 3 x 3.6m. A deployed queen sofa bed is approximately 155 x 200cm, plus 50cm clearance on each side. That's workable in a 3.6m-wide room but tight in a 3m room, particularly if the sofa sits against a wall. Mark the floor before ordering.

What's the difference between a 2-seater and 3-seater sofa bed?

Primarily width. A 2-seater sofa bed is typically 150-180cm wide. A 3-seater is 180-220cm wide. The deployed bed width scales with the sofa, so a 3-seater gives you a wider sleeping surface. Both are typically the same length when deployed, around 185-205cm.

How much floor space does a sofa bed need when deployed?

The sofa depth plus the bed's deployed depth, plus 50cm clearance on each accessible side. For the Eva Slideaway Sofa Bed, the unit extends to 153cm total depth when deployed. Budget at least 153cm of clear floor space in front of the sofa, plus access space on each side.

What is the standard mattress size for a sofa bed in Australia?

There's no universal standard. Deployed dimensions vary by brand and mechanism type. A 'queen' sofa bed mattress is typically 145-160cm wide, slightly narrower than the standard Australian queen (153 x 203cm). Always check the deployed dimensions in the product listing, not just the sofa size label.

How do I measure if a sofa bed will fit through my front door?

Measure your door's width and height, then calculate the diagonal (square root of W squared plus H squared). That diagonal is the effective maximum length that can be tilted through the opening. If your sofa bed is narrower than that diagonal in its smallest packed dimension, it'll fit through the door.

What size sofa bed is right for a double bedroom?

A double bedroom is typically 3 x 3m to 3 x 3.6m. A 2-seater sofa bed (150-180cm wide) works well in this size room, giving a double sleeping surface when deployed. Measure the full deployment footprint before ordering: the bed extends well beyond the sofa's closed depth and can block access in tighter rooms.

What size sofa bed fits in a small apartment?

A 2-seater sofa bed (150-180cm wide) is the standard choice. When deployed, it typically gives a double sleeping surface. Measure the deployment zone before buying, as small apartments often have limited floor clearance in front of the sofa. See Eva's sofa bed range at eva.com.au.