How to Measure a Room for Custom Furniture Before Ordering
A tape measure, a pencil and an hour is all you need to get this right. Knowing how to measure a room for custom furniture saves you from the expensive kind of mistake, the kind you only discover when the piece is standing in your passage and won't turn the corner.
This guide walks through it the way a maker would: sketch the room, measure every wall, check the route in, then test the numbers against a real listing. Do it before you order and you can browse with confidence.
Why Measuring the Room Comes First
Made-to-order furniture is built to the figures you give. That is the whole point of it, and it is also the risk: one wrong number goes straight into the build, and nobody can trim a finished wardrobe to suit a wall that turned out 3 cm shorter than you thought.
Homestylez designs and builds made-to-order pieces for residential customers, so the measurements you take at home are the starting point for everything that follows.
South African homes add a few local wrinkles. Older houses have narrow passages and walls that wander. Burglar bars and security gates cut into doorways. Sectional-title flats often depend on a lift car that is smaller than the front door suggests.
Measure all of this first, because the usable space at any spot is smaller than the raw wall length. Skirting boards, architraves, switches and plug points all take a bite out of it.
Gather Your Tools and Sketch a Rough Floor Plan
You don't need anything fancy. Gather these:
- A steel tape measure, at least 5 m long, because cloth tapes sag and plastic ones stretch
- A pencil and an eraser
- A notebook or graph paper
- A helper for long runs and for reading the tape at ceiling height
- Painter's tape, which you'll use later to mark footprints on the floor
Start with a top-down sketch of the room. It doesn't have to be neat or to scale. Draw the walls, then mark each door and show which way it swings. Add the windows and every plug point.
Write every figure in centimetres. Product listings use centimetres, so when your sketch says 148 and the listing says 150, you can compare them at a glance without converting anything. Label each measurement the way listings do: W for width, D for depth, H for height.
Keep the sketch handy. You'll fill it in as you go, and by the end it holds everything a maker needs to know about your space.
Measure Your Room Wall by Wall
Work around the room in one direction and measure every wall, writing each figure on the sketch the moment you read it. Don't trust your memory, even for a small room.
Measure Each Wall at More Than One Point
Run the tape from corner to corner along each wall. Then measure again near the floor, at about waist height and up near the ceiling. Walls in many older homes are not perfectly straight, and floors and ceilings are rarely level, so the three readings can differ by more than you'd expect.
Do the same with ceiling height: measure at both ends of the room and in the middle. If a gap of a centimetre or two shows up, don't average the numbers. Work from the smallest reading, because that's the space a piece actually has to fit into.
A tape run from wall to wall can also miss a skirting board or window architrave that narrows the usable opening. That's why the next step matters.
Mark Windows, Plug Points and Other Fixed Features
On the sketch, add everything that sticks out or can't move. Record:
- Window sill heights and the width of the frames
- Plug points and light switches, with their height from the floor
- The DB board or geyser cupboard, plus the space needed to open it
- Any step or change in floor level
Each of these takes away space a piece would otherwise seem to have. A plug point at 30 cm sits behind a low cabinet, and a window sill at 90 cm decides how tall anything can be if you want to open the window. You may not mind giving up a plug, but you'll want to decide that before the build, not after.
Check Doorway, Passage and Staircase Clearance
A piece has to pass every doorway, passage, corner, staircase and lift on its route. The narrowest point along that route decides whether it can arrive as built, however well it fits at the end.
Walk the route yourself, from the delivery entrance to the final spot, and note the tightest spot on the sketch.
Doorways, Passages and Lift Access
Measure the clear opening of every door on the route, with the door open. Frames, hinges and handles all reduce the width, so measure from the face of one side to the other, not the wall to wall. Burglar bars and security gates can reduce the clear opening of a doorway, and the gate often has a lock box or hinge that sticks further than you remember.
Passage corners need a look as well. A long piece may clear a 90 cm passage in a straight line yet jam at the first turn. Measure the width on both sides of each corner.
In a sectional-title flat, the lift car sets its own limit on what can be carried up. Measure its door opening, its inside width and depth, and its height. If you live in a small apartment, our storage solutions for small apartments piece is worth a read before you settle on a size.
Staircases, Landings and Tight Turns
If the route includes stairs, measure their width, the headroom under the ceiling or the flight above, and the size of every landing. Landings where the stair turns are the usual trouble spot, because a long piece has to pivot there.
Write down the tightest point. If a piece cannot travel the route in its built form, raise it with the maker before ordering. It's far easier to agree on a different plan at that stage than on the day the piece arrives.
How to Measure for a Wardrobe
A wardrobe has to fit its opening, so the alcove's width, depth and height set the limits. Door swing and handle depth must be allowed for on top of that.
The Nu Dekor - 2-Door Multi-Storage Wardrobe With Clothing Rail and Shelves makes a good worked example. It is listed at 1000W/1500W x 47D x 169H cm (approx.), with 1 m and 1.5 m widths available. Those two widths are the ones to test against your alcove.
Measure the Opening, Not Just the Wall
Width first. Measure the alcove at three heights and take the smallest figure. If it reads 148 cm, the 1.5 m wardrobe is too tight to be comfortable, and the 1 m option leaves a gap you'll need to plan for. An alcove that reads a few centimetres wider than the listed width gives you room to slide the piece in.
Depth next. Measure from the back wall to the nearest obstacle, such as a bed end, a door or a window ledge, and compare it with the listed 47 cm. Then height: the wardrobe is listed at 169 cm, so check it against the ceiling and any cornice or bulkhead. Most rooms clear that easily, but sloped ceilings and low bulkheads don't.
This listing is for the Nu Dekor wardrobe as sold. It tells you about that piece only, so it won't tell you whether a differently sized piece would suit your alcove.
Allow for Door Swing, Handles and Skirting
Doors need room to open. Check that the swing clears the bed, a chest of drawers or the bedroom door, and remember that handles stick out a few more centimetres. Skirting boards push a wardrobe forward from the wall, so measure depth from the front of the skirting, not from the plaster.
Listed sizes are approximate. Leave a sensible margin rather than matching the numbers to the last centimetre.
Furniture Sizing Tips and Common Mistakes
The easiest test costs almost nothing. Take your painter's tape and mark the piece's footprint on the floor, then stand in it, open the doors and walk around it.
Take the Focus - 2.4m Boardroom Office Desk, listed at approximately 240 x 110 x 76 cm (L x W x H). Tape out a rectangle that size and you'll see straight away how much of the room it takes. A desk nook needs at least that length of clear wall before any chair space is added, and you'll want room to pull the chair out and sit comfortably. For more on depth and chair room, see our desk sizing and setup guide.
Small pieces need the same care. The gap beside a bed is often tighter than it looks, so check our notes on bedside pedestal styles and sizes before you pick one.
Tape also shows you the walkway. If you can't move around the footprint without turning sideways, the piece is too big for the spot.
Mistakes That Lead to the Wrong Size
Most wrong-size orders trace back to the same handful of slips:
- Taking one reading per wall and assuming it holds along its whole length
- Forgetting skirting boards or architraves
- Ignoring door swing, which can block a drawer or a wardrobe door
- Skipping the delivery route
- Treating approximate listing sizes as exact
None of these is hard to avoid. They all come from measuring in a hurry. Slow down, write each figure on the sketch and check it twice.
Fitting Custom Furniture to Your Measurements
By now you have a sketch with every wall, every fixed feature and the route in, all in centimetres. Check each figure against the listing for the piece you want, allowing the margin we talked about, and you'll know quickly whether it suits the space.
This guide won't tell you what your room should hold, and it can't replace the maker's view on a tricky route. It gets you to the point where those conversations are short and specific.
Compare the listed sizes on the Nu Dekor - 2-Door Multi-Storage Wardrobe With Clothing Rail and Shelves and Focus - 2.4m Boardroom Office Desk pages against your own figures. Then, once you know what fits, read our custom furniture cost guide for South Africa so you have budget context before you browse the made-to-order range.
Frequently asked questions
How much margin should I leave when fitting furniture into an alcove?
Leave a few centimetres of room beyond the listed size, because listed dimensions are approximate. A 1 m wardrobe wants an alcove comfortably wider than 100 cm, so you can slide it in without scraping the walls. Also check door swing and handle depth, which add to the space a piece needs.
What if my walls are not straight?
Measure each wall at more than one height and use the smallest reading. Older homes often have walls, floors and ceilings that aren't perfectly straight or level. The smallest figure is the space a piece has to fit into.
Should I measure in centimetres or metres?
Use centimetres for everything. Product listings give sizes in centimetres, so your figures compare directly without any conversion. Label each one as width, depth or height to match.
Do I really need to measure the delivery route?
Yes. A piece has to pass every doorway, passage corner, staircase and lift on its way in, and the narrowest point decides whether it can arrive as built. Burglar-bar gates and flat lifts are the usual culprits. If a piece can't make the trip in one piece, raise it with the maker before ordering.
How can I check a piece will fit before I order?
Tape the piece's footprint on the floor with painter's tape, using the listed length, width and depth. Stand in it, open imaginary doors and walk around it. A quick floor-plan sketch with the same figures gives you a second check.