How to Measure Up for Leather Sofa Beds: A Simple Sizing Guide

To measure up for a leather sofa bed, you need three sets of figures: the space the sofa takes up when closed, the space it needs when fully opened as a bed, and the dimensions of every doorway, hallway and staircase it must travel through. Allow at least 60 to 75cm of walking space around the open bed and check the open length carefully, because this is the measurement most people underestimate. Once those numbers are written down, choosing the right model becomes straightforward.

A sofa bed has to work twice as hard as a standard sofa, so it pays to plan properly. You can compare frames and mechanisms in our range of modern sofa beds UK sale, and see how they sit alongside standard frames in our wider collection of modern sofas UK. First, though, here is a simple step by step sizing guide.

What You Will Need

Gather a few basic tools before you start:

• A metal tape measure, ideally at least five metres long.
• Masking tape or painter’s tape for marking the floor.
• A notepad or phone to record each measurement.
• A second person to help hold the tape on longer runs.

Measure everything in centimetres. Most furniture specifications in the UK are listed in centimetres, and working in one unit avoids conversion mistakes.

Step One: Measure the Closed Footprint

Start with the space the sofa will occupy during the day. Decide which wall it will sit against and measure the available width from one obstruction to another. Obstructions include radiators, door frames, built in cupboards and skirting heaters.

Then measure the depth you can spare, from the wall out into the room. Remember that you will still need room in front of the sofa for a coffee table and for people to walk past. A closed sofa bed is often slightly deeper than an ordinary sofa because the mechanism and mattress are stored inside.

Finally, check the height available. This matters if the sofa will sit beneath a window, shelving or a wall mounted television.

Step Two: Measure the Open Bed

This is the most important step. When opened, a sofa bed extends forward into the room, sometimes by more than a metre beyond the closed depth. Check the product’s open length in the specification and compare it with your floor.

Use masking tape to mark the full open footprint on the floor. Seeing the outline makes it far easier to judge whether the room will still work. Look for:

• Doors. Make sure the room door, and any wardrobe or cupboard doors, can still open when the bed is out.
• Walkways. Leave enough space for a guest to get in and out of bed and walk to the door. Around 60 to 75cm is a comfortable minimum.
• Furniture to move. Note which pieces, such as a coffee table or rug, will need moving each time you open the bed.
• Heat sources. Keep the open bed clear of radiators and fires.

Different mechanisms affect the open length in different ways. Pull out designs tend to extend furthest, while click clack styles that fold flat stay closer to the closed depth, so compare the specification of each model rather than assuming they are similar.

Step Three: Understand Mattress Sizes

Sofa bed mattresses do not always match standard bed sizes exactly. A sofa described as a double may offer a sleeping area close to a UK small double or standard double, depending on the frame. Check the actual sleeping surface rather than relying on the label.

As a general guide, a UK single bed is 90cm wide, a small double is 120cm, a double is 135cm and a king is 150cm. Most sofa beds fall somewhere between small double and double width. Length can also be shorter than a standard bed, which matters for taller guests.

Mattress depth affects comfort too. Thicker mattresses usually feel more like a proper bed but can make the closed sofa slightly deeper. If you plan to use the bed often, it is worth looking at our mattresses UK range alongside the sofa, and our article on memory foam mattresses for UK sofa beds explains how filling types compare.

Step Four: Measure the Delivery Route

Many sofa problems happen before the sofa reaches the room. Leather sofa beds are heavier than standard sofas because of the internal metal mechanism, so they can be harder to angle through tight spaces. Measure:

• The width and height of the front door, including any porch door.
• The width of hallways, especially where they narrow near radiators or stair posts.
• The width and ceiling height of staircases, plus any turns or landings.
• Internal doorways to the room itself.

Compare these with the sofa’s width, height and depth. The diagonal depth of the sofa is particularly useful, as it tells you whether the sofa can be tilted through a door. If a doorway is close to the limit, look for models with removable legs or arms.

Step Five: Consider How Often It Will Be Used

Your measurements tell you what will fit. How often the bed will be used should help you choose what type of sofa bed to buy.

Occasional Guests

If the bed comes out a few times a year, prioritise how the sofa sits during the day. A slimmer frame that suits your living room may be more valuable than a deeper mattress.

Regular Use

If the sofa bed is the main bed in a guest room or studio flat, invest in a robust mechanism and a thicker mattress. Check the open length carefully so it suits adults of average height.

Daily Sleeping

For nightly use, comfort and ease of operation become the priority. Look for a mechanism that opens smoothly in one movement and a mattress designed for frequent sleeping.

Why Leather Suits Sofa Beds

Leather has some practical advantages for a sofa bed. It is easy to wipe clean, which helps when guests stay over and the sofa sees heavier use. It does not trap dust in the same way as some fabrics, and it keeps a smart appearance in a living room or home office during the day. Corrected grain leathers are particularly hard wearing, while softer leathers offer a more relaxed look.

For a closer look at how open sizes vary between designs, our guide to sofa bed open dimensions in UK homes is a useful companion to the checklist below.

A Quick Measuring Checklist

Before you order, check you have recorded each of the following:

• Available wall width for the closed sofa.
• Available depth for the closed sofa, plus walking space in front.
• Full open length of the bed, marked on the floor.
• Clearance around the open bed for doors and walkways.
• Sleeping surface width and length.
• Every doorway, hallway and staircase on the delivery route.
• The diagonal depth of the sofa compared with your narrowest door.

Common Measuring Mistakes

A few errors come up again and again:

• Measuring the closed sofa but not the open bed.
• Forgetting skirting boards, which reduce the usable depth by a centimetre or two.
• Ignoring radiators or sockets that sit behind the sofa.
• Assuming a sofa bed described as a double will take double bedding without checking.
• Overlooking low ceilings or beams on staircases in older properties.

Measuring Rooms With Awkward Shapes

Many UK homes have rooms that are not simple rectangles. Bay windows, chimney breasts, alcoves and sloping loft ceilings all affect where a sofa bed can go. In a room with a chimney breast, the alcoves on either side are often too shallow for an open bed, so the sofa usually works best on the opposite wall. Under a sloping ceiling, check the head height at the point where a guest would sit up in bed, not just at the highest part of the room.

In box rooms and small studies, the open bed may take up most of the floor. That is fine for occasional guests, as long as the door can still open and there is a clear route out of the room.

Measuring for a leather sofa bed takes a little more care than measuring for an ordinary sofa, but the process is simple once you break it into steps. Record the closed footprint, mark out the open bed, check the mattress size and measure the route into the room. With those figures in hand, you can choose a sofa bed with confidence. You will find sofa beds, mattresses and living room furniture across the range at Furniture in Fashion.

Frequently Asked Questions

How much space do I need in front of a sofa bed?

Check the open length in the product details and add around 60 to 75cm of walking space beyond the end of the opened bed.

Will standard bedding fit a sofa bed?

Often, but not always. Compare the actual mattress width and length with your bedding before buying sheets and duvets.

Can a leather sofa bed go upstairs?

Yes, as long as the staircase width, ceiling height and any turns allow for the sofa’s dimensions. Models with removable legs or arms are easier to move.

Is a leather sofa bed comfortable to sleep on?

Comfort depends mainly on the mattress and mechanism rather than the leather. Look for a thicker mattress if the bed will be used regularly.

How do I measure the diagonal depth of a sofa?

Measure from the top back corner of the sofa to the front edge of the seat. This tells you whether it can be tilted through a doorway.