How to Measure Your Home Before Buying Furniture
Buying furniture is much easier when you know three things: the dimensions of the item, the usable space in the room and the narrowest point along the delivery route. Measure all three in centimeters, note fixed obstacles and allow space to man oeuvre. If any clearance is close, contact the retailer before ordering.
A sofa may fit comfortably against your living-room wall but still be too large for the front door. A wardrobe might pass through the entrance but become stuck on a narrow landing. Even smaller pieces can overwhelm a room once drawers, doors and walkways are considered.
This furniture measurements guide explains how to measure your home properly, plan the delivery route and check the space required for different furniture types.
What should you measure before buying furniture?
Before ordering furniture, record three sets of measurements:
- The furniture’s dimensions
- The available space where it will be positioned
- Every doorway, hallway, staircase, lift and turn along the delivery route
Checking only one or two of these areas is not enough. The furniture must reach the room, fit in its intended position and leave enough space for the room to function normally.
Furniture dimensions
Check the individual product page for the exact measurements of the model you are considering. These will normally include:
- Width: the measurement from one side to the other
- Height: the measurement from the floor to the highest point
- Depth: the measurement from front to back
- Extended depth: the space required when a recliner, sofa bed or extending table is open
- Diagonal depth: a diagonal measurement used to assess whether an item can be tilted or pivoted through an opening
Do not assume that products with similar names have the same dimensions. Two three-seater sofas, for example, can vary considerably in width, depth and arm design.
Also check whether the published measurements include handles, feet, decorative tops, cushions or other projecting parts.
Available room space
Measure the exact area where the furniture will stand. Include nearby doors, drawers, radiators, windows, sockets, skirting boards and existing furniture.
The objective is not simply to establish whether the item fits inside the room. You also need to know whether it leaves enough space to walk past, open storage and use the furniture comfortably.
The complete delivery route
Trace the route from the delivery vehicle to the final room. Depending on your property, this might include:
- A garden gate or communal entrance
- The front or back door
- A porch
- Internal doors
- Narrow hallways
- Sharp corners
- Staircases and landings
- A lift
- Low ceilings, beams or light fittings
- The doorway into the destination room
Measure every restriction at its narrowest usable point. One tight turn can matter more than the overall width of a hallway.
How to measure a room accurately
Use a rigid or retractable tape measure that is long enough for the room. Record dimensions in centimeters and label every measurement immediately. A rough sketch is often clearer than a list of unlabeled numbers.
If possible, ask another person to hold one end of the tape. This helps prevent it from bending or slipping across longer distances.
Width, length and ceiling height
Measure the room’s maximum width and length, followed by the usable area available for the furniture. These figures may be different because fireplaces, alcoves, bay windows and built-in units can interrupt the floor plan.
Record:
- Wall-to-wall length
- Wall-to-wall width
- Floor-to-ceiling height
- Width and depth of the intended furniture position
- Distance between the furniture position and the nearest obstruction
Measure the wall at more than one height if it is uneven or contains a dado rail, sloping ceiling or projecting feature.
Skirting boards, radiators and alcoves
Skirting boards reduce the usable depth of an alcove and prevent some furniture from sitting completely against the wall. Measure between the most prominent fixed points rather than between the bare walls.
Include the projection of:
- Skirting boards
- Radiators and valves
- Fireplace surrounds
- Window ledges
- Pipes
- Sockets and switches
- Fixed shelving
Furniture should not obstruct a radiator or prevent safe access to electrical sockets. If a cabinet must fit inside an alcove, measure the width at the top, middle and bottom because older UK properties are not always perfectly square.
Doors, windows and walking space
Mark the full swing of every door, including cupboard and cabinet doors. Furniture should not prevent a door from opening properly or create an awkward route through the room.
Check whether the furniture could:
- Block a doorway
- Restrict access to a window
- Prevent drawers from opening
- Obstruct a frequently used walkway
- Cover a socket or heating control
- Make curtains difficult to open
- Restrict access to other furniture
Masking tape can help you test the proposed footprint. Mark the furniture’s width and depth on the floor, then live with the outline for a short time. Walk around it, open nearby doors and imagine using the room normally.
The tape shows the footprint, but not the item’s height. Use removable tape on the wall, or a lightweight upright object, to understand its full scale.
How to check whether furniture will fit through a doorway
To determine whether furniture will fit through a door, compare the item’s width, height, depth and, where supplied, diagonal depth with the clear door opening. Measure the doorway with the door fully open and include handles, frames and other obstructions.
Furniture is often carried at an angle rather than moved straight through. For that reason, comparing only the item’s width with the door width can produce the wrong conclusion.
Door-frame width and height
Measure the clear opening rather than the outer edge of the frame.
Record:
- The narrowest width inside the open doorway
- The clear height from the threshold to the lowest part of the frame
- The space immediately before and after the door
- The position of handles, closers and fixed fittings
- Whether the door opens fully
Repeat this for the external entrance and every internal doorway on the route.
If you live in a block of flats, also check communal entrances, security doors and fire doors. Never remove or interfere with a communal or fire-safety feature.
Furniture depth and diagonal depth
Furniture depth is the straight front-to-back measurement. Diagonal depth is a straight-line measurement across the item’s side profile that helps indicate the space needed when it is tilted or pivoted.
The exact way diagonal depth is measured can vary according to the product and retailer. Do not calculate it using an assumed method if it is not provided. Ask the retailer for the correct figure and how it relates to the delivery position.
For sofas and armchairs, removable cushions may reduce bulk, but they do not change the dimensions of the fixed frame. Never assume that arms, backs or feet can be removed unless the product information confirms this.
Removable legs and detachable components
Some furniture is delivered in sections or has removable legs, shelves or doors. Modular construction can make an item easier to move through a restricted route, but this depends on the specific design.
Before relying on disassembly, confirm:
- Which components are removable
- Whether they arrive detached
- The dimensions of the largest fixed section
- Whether professional assembly is required
- Whether disassembly could affect the guarantee
The measurement that matters for delivery is usually the largest rigid component—not necessarily the final assembled size.
Measuring stairs, landings and narrow hallways
Staircases require more than a width measurement. A large item may fit between the walls but still lack the height or turning space needed to tilt it.
Measure:
- Stair width at the narrowest point
- Clearance between handrails and walls
- Vertical clearance above the steps
- Low ceilings and sloping sections
- The dimensions of each landing
- Corner-to-corner space at turns
- Bannisters, newel posts and fixed fittings
- The final doorway at the top or bottom
On a turning staircase, consider how the item will change direction. Delivery teams need room to lift, rotate and lower it safely.
For a lift, measure the clear door opening, internal width, depth and height. Check the lift’s stated weight limit and any building rules concerning large deliveries.
If the route is complicated, send accurate measurements and photographs to the retailer before ordering. Photographs are helpful, but they should support not replace measurements.
Creating a simple furniture floor plan
You do not need specialist software to create a useful floor plan.
Follow this process:
- Draw the room’s basic shape.
- Add doors, windows, radiators, fireplaces and alcoves.
- Write down the wall lengths and ceiling height.
- Mark existing furniture that will remain.
- Draw the proposed furniture to the same approximate scale.
- Show door swings and frequently used walking routes.
- Check the space required to open drawers, doors or extending sections.
For a more physical test, mark the item’s footprint with masking tape or sheets of paper.
Worked example
Suppose a sideboard is:
- 140 cm wide
- 42 cm deep
- 80 cm high
The intended wall is 190 cm wide, but a radiator occupies 35 cm at one end. This leaves 155 cm of usable wall width.
Although the 140 cm sideboard technically fits, only 15 cm remains. You must still check whether the radiator requires additional clearance, whether the sideboard doors can open and whether the arrangement will look and function comfortably.
The same principle applies to delivery. If the narrowest doorway is only slightly larger than the sideboard’s smallest suitable carrying dimension, do not assume it will pass through. Packaging, handles and the space required to rotate the item can affect the outcome.
Measurements to check for different furniture types
| Furniture type | Essential measurements | Additional checks |
|---|---|---|
| Sofa or armchair | Width, height, depth and diagonal depth | Fixed arms, removable feet, hallway turns and space to recline |
| Dining table | Length, width and height | Chair space, walking route, extension leaves and table-leg position |
| Dining chair | Overall width, depth and height | Seat height, arm height and space needed to pull out the chair |
| Wardrobe or cabinet | Width, depth and height | Door swing, drawer extension, ceiling clearance and largest delivery section |
| Sideboard | Width, depth and height | Door and drawer clearance, skirting boards and nearby radiators |
| Console table | Width, depth and height | Hallway width, passing space and wall obstructions |
| Sofa bed | Closed and fully opened dimensions | Space to unfold it and access around the open bed |
| Modular furniture | Final footprint and individual module sizes | Size of the largest module and connection method |
Sofas and armchairs
When choosing from Orsina’s sofas or other living-room seating, check both the assembled dimensions and the delivery configuration.
Measure the sofa’s proposed position, but also consider seat depth, arm width, nearby tables and normal walking routes. For a corner sofa, record both sides of the configuration and confirm whether its orientation suits the room.
A reclining chair or sofa must be measured in its fully extended position.
Dining tables and chairs
A dining table requires additional space for chairs to be pulled out and for people to pass behind them. Measure the complete dining zone rather than the tabletop alone.
For an extending table, check:
- Closed dimensions
- Fully extended dimensions
- Space for additional chairs
- Whether the extension changes the leg positions
- Storage requirements for removable leaves
Review the individual dimensions when comparing dining tables and dining chairs.
Cabinets, wardrobes and sideboards
Tall storage furniture needs sufficient ceiling clearance for assembly and positioning. An item that fits beneath the ceiling when upright may still need extra height to be raised from a horizontal position.
For wardrobes, cabinets and sideboards, check:
- Door and drawer opening space
- Skirting-board projection
- Ceiling height
- Nearby sockets and radiators
- The dimensions of the largest packaged component
- Any wall-fixing requirements stated by the manufacturer
Follow all assembly and anti-tip instructions supplied with the product.
Common measuring mistakes
Avoid these frequent errors:
- Measuring the wall but not the delivery route
- Recording the door frame rather than the clear opening
- Assuming walls and alcoves are perfectly straight
- Ignoring radiators, handles, bannisters or low light fittings
- Measuring a sofa bed or recliner only when closed
- Forgetting the space required to open drawers and doors
- Assuming furniture legs or arms are removable
- Comparing rounded measurements when the fit is already close
- Allowing no room for packaging or safe manoeuvring
- Treating a taped floor outline as a complete picture of the item’s scale
- Ordering before checking the dimensions of the individual model
Furniture measuring checklist
Before placing an order, confirm that you have:
- Recorded the exact product width, height and depth
- Checked any extended or open dimensions
- Confirmed the largest fixed or packaged section
- Measured the intended position
- Marked the furniture footprint
- Checked doors, drawers and walking routes
- Measured the external entrance
- Measured every internal doorway
- Checked hallway corners
- Measured stairs, landings or lifts
- Noted radiators, skirting boards and fixed fittings
- Confirmed whether components are removable
- Contacted the retailer where any clearance is uncertain
Measurements reduce the risk of access problems, but they cannot guarantee a successful delivery where clearances are extremely tight or the route is unusually complex. When in doubt, ask Orsina’s customer-support team to review the product details and the information you have collected.
Frequently asked questions
How do I know whether a sofa will fit through my door?
Compare the sofa’s width, height, depth and diagonal depth with the doorway’s clear width and height. You must also check the space on both sides of the door because the sofa may need to be tilted or rotated. If the measurements are close, contact the retailer before ordering.
Should furniture dimensions include removable legs?
Published dimensions commonly describe the assembled item, but practices can vary. Check the individual product page or ask whether the feet are removable and whether the item will arrive with them detached. Base delivery planning on the largest fixed section confirmed by the retailer.
How much space should I leave around a dining table?
Leave enough room to pull out each chair and move behind an occupied seat without striking a wall or another piece of furniture. The exact amount depends on the chair depth, room layout and whether the area forms a regular walkway. Mark the table and pulled-out chair positions before ordering.
How do I measure a staircase for furniture delivery?
Measure the narrowest stair width, the lowest vertical clearance, handrails, bannisters, landings and every turn. Check whether there is enough space to lift and rotate the item. Include the doorways at both ends of the staircase.
What is diagonal depth?
Diagonal depth is a diagonal measurement across a piece of furniture’s side profile. It helps assess whether the item can be tilted or pivoted through a doorway or around a corner. Because measurement methods differ between products, use the retailer’s stated figure or request clarification.
What should I do if my measurements are very close to the furniture size?
Do not rely on an exact or near-exact fit. Recheck the narrowest points, packaging, handles, frames and turning space. Take photographs and contact the retailer with the product name and your measurements. A small numerical clearance may not provide enough space for safe maneuvering.
