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How to Measure a Sofa Cushion for Replacement | Step-by-Step Guide
How to Measure a Sofa Cushion for Replacement — Step-by-Step Guide
Getting accurate measurements is the most important step when ordering replacement sofa cushions. A cushion that's even a quarter-inch off can gap, bunch, or not sit properly in the frame. This guide from The Fluff Haus walks you through measuring every type of sofa cushion — from simple rectangles to T-cushions to odd-shaped sectional pieces. We've been handcrafting custom cushions in Hickory, North Carolina for years, and these are the measuring techniques our craftsmen recommend.
- A flexible tape measure (fabric or metal retractable)
- A pen and paper or your phone's notes app
- Your smartphone camera for reference photos
- Optional: large sheets of butcher paper, newspaper, or craft paper for templates
Take the cushion completely out of the sofa and place it on a flat surface like a floor or large table. If the cushion is severely compressed or misshapen, that's okay — measure it as flat as possible and note its condition. If the cushion has a removable cover, measure with the cover on (the cover dimensions are what we need to match).
Lay the cushion flat and measure from the left edge to the right edge at the widest point. This is the width. For cushions that sit between sofa arms, also measure the opening in the sofa frame where the cushion sits — sometimes the cushion has compressed and is no longer the correct width.
Measure from the front edge (the part you see when sitting) to the back edge. This is the depth. For T-cushions, measure the depth of the main body (the part between the arms), NOT including the T-extension.
Stand the cushion on its edge and measure from top to bottom. This is the height (also called thickness). Common sofa cushion heights are 4", 5", and 6". If your old cushion has compressed, measure both the compressed height and try to estimate the original height — or measure the sofa frame opening height for reference.
T-cushions have extensions that wrap around the front of the sofa arms. To measure a T-cushion:
- Main body width: The width between the arms (same as Step 2)
- Main body depth: Front-to-back of the section between the arms
- T-extension width: How far each arm extension extends to the left and right beyond the main body
- T-extension depth: How far the T-extension projects forward from the main body (usually 3"–6")
- Total width: The full width including both T-extensions
Draw a rough sketch with all these measurements labeled. A bird's-eye view sketch is extremely helpful for our craftsmen.
For curved, L-shaped, or irregular cushions, we recommend making a paper template:
- Lay large sheets of paper (butcher paper, newspaper taped together, or craft paper) on the floor
- Place the cushion on top and trace around it with a marker
- Label the template with width, depth, and height measurements
- Note which edge faces front, back, left, and right
- Mail or photograph the template for our team
Photos help our team understand your cushion's shape and construction. Please take:
- Top-down photo of the cushion laid flat (bird's eye view)
- Side photo showing the height/thickness
- Photo of the cushion in the sofa frame (if possible)
- Photo of the sofa without cushions showing the frame opening
- Close-up of any special details — piping, buttons, channels, curved edges
- Measuring only the compressed cushion: If your cushion has flattened over time, the measurements may be smaller than what the sofa actually needs. Measure the frame opening too.
- Forgetting the T-extension: On T-cushions, every dimension of the T matters. Don't just measure overall width and depth.
- Not accounting for piping: If you want welted/piped edges, mention this — it slightly affects the cushion dimensions.
- Rounding measurements: Measure to the nearest quarter-inch. Precision matters for custom cushions.
Once you have your measurements, visit our Custom Cushions collection or contact The Fluff Haus directly with your dimensions, foam preference (see our Foam Density Guide), and fabric choice. Every replacement cushion is handcrafted and Made in USA in our Hickory, North Carolina workshop.