Key takeaways
- Rainy, exposed garden: Choose a well-constructed waterproof or highly water-resistant cover with vents, reinforced seams and multiple tie-down points.
- Windy patio: Give priority to adjustable straps that can attach beneath the frame. A drawcord alone may not hold a large L-shaped cover in strong gusts.
- Covered balcony: A lighter breathable cover may be sufficient if the furniture is protected from direct rain and the cover is not exposed to strong wind.
- Furniture with a table joined to the sectional: Measure the full combined footprint and height. A cover shaped for seating alone may not clear the table.
How to measure an L-shaped cover for garden furniture
For a proper fit, measure each outside arm, the sectional’s maximum front-to-back depth—including the corner—and its overall height, then choose a cover with enough clearance to fit without dragging on the ground. Measure the furniture itself, not the cushions alone: an l shaped cover for garden furniture needs to clear the frame’s widest points while sitting securely enough to resist wind.
Measure both arms and the corner
- Set the sectional in its usual L shape. Place movable sections together as they will sit outdoors, and leave cushions in place only if they will stay under the cover.
- Measure each arm separately. Start at the outside back corner and measure along the back of each leg to its farthest end. Record the left and right dimensions; do not assume they are equal.
- Measure the maximum depth. Measure from the back edge to the frontmost point. At the corner, check for a deeper wedge-shaped seat, wide arm, or projecting foot. Use the largest front-to-back measurement, not the depth of a straight seat section.
- Measure the height. Measure from the ground to the highest fixed point, such as a backrest or arm. If the cover will sit over cushions, include their added height.
- Check for projections. Include feet, side tables attached to the frame, reclining mechanisms, and any other part that cannot be removed. Note sharp corners that could rub against the cover.
For a sectional with unequal arms, write the dimensions as “long arm × short arm × maximum depth × height.” This is more useful than a single overall length, which can hide a mismatch at the corner.
ULTCOVER Waterproof Patio 6-Seater L-Shaped Left Facing Sofa Cover
Included for 'L-Shaped Cover for Garden Furniture: How to Measure a Sectional for a Proper Fit' as a relevant option in this category; details come from the product listing.
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ULTCOVER Waterproof Patio 6-Seater L-Shaped Right Facing Sofa Cover
Included for 'L-Shaped Cover for Garden Furniture: How to Measure a Sectional for a Proper Fit' as a relevant option in this category; details come from the product listing.
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iBirdie Outdoor Sectional Cover for 85 x 85 inch L-Shaped Couch Sofa
Included for 'L-Shaped Cover for Garden Furniture: How to Measure a Sectional for a Proper Fit' as a relevant option in this category; details come from the product listing.
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Zettum Outdoor L-Shaped Sectional Cover - 600D Patio Sectional Sofa Cover, Waterproof Patio Furniture Covers for 6-Seater Outdoor Sectional Sofa and Couch, Left Facing, 85x110 Inch Wide
Included for 'L-Shaped Cover for Garden Furniture: How to Measure a Sectional for a Proper Fit' because the listing specifies 600D Patio Sectional Sofa Cover and Left Facing, details this guide uses to compare options.
View on Amazon| Measurement | Example sectional | Cover-sizing guidance |
|---|---|---|
| Long arm along back | 96 in (244 cm) | Look for a cover rated to span at least 96 in on that side. |
| Short arm along back | 72 in (183 cm) | Confirm the shorter leg is not forced into the long-leg dimension. |
| Maximum front-to-back depth | 34 in (86 cm) | Check that the listed width or depth clears the corner and front edge. |
| Highest fixed point | 31 in (79 cm) | Allow a little headroom, but avoid excess fabric that can catch wind. |
In this example, a cover’s stated dimensions should accommodate both arms and the 34-inch maximum depth. Product listings do not always describe L-shaped dimensions consistently, so compare the shape diagram and each side measurement rather than relying on a size label such as “large.”
Choose clearance without inviting wind or pooling
A cover should go on and come off without scraping, but a very loose fit can balloon in gusts and collect rain. As a practical starting point, allow roughly 1–2 inches (2.5–5 cm) beyond each measured horizontal dimension if the maker’s sizing chart permits it. Do not add that allowance twice if the listed cover dimensions already include fitting ease.
Keep the hem above the ground—often about 2–4 inches (5–10 cm)—so air can circulate and water or debris is less likely to be trapped underneath. The right clearance depends on the cover’s cut and attachment points. If a cover is designed to reach the ground, it should still have vents and a way to secure the hem.
Prevent pooling by checking the shape of the top. A flat, taut cover can sag between backrests or across a deep corner, creating a water pocket. Look for a pitched or structured top, or use a stable support pole beneath the cover where the maker allows it. Keep the furniture level and remove standing water after heavy rain; a waterproof fabric cannot prevent damage caused by a persistent pool pressing on seams.
Compare fabric, waterproof rating, vents and straps
| Feature | What to look for | Trade-off |
|---|---|---|
| Water resistance | Coated polyester or solution-dyed fabric with sealed or well-finished seams; a stated hydrostatic-head rating is useful when available. | A higher rating can improve resistance to water pressure, but construction, seam sealing and fit still matter. “Waterproof” alone is not a complete specification. |
| Vents | Covered vents on more than one side, positioned to let damp air escape without exposing the interior directly to rain. | Ventilation reduces condensation and mildew risk, but vents are not a substitute for a well-fitted rain cover. |
| Straps and closures | Adjustable buckles or straps near the lower corners, plus a drawcord or elastic hem where suitable. | Straps help prevent wind blow-off; they need accessible attachment points and should not be tightened so hard that they tear the fabric. |
| Fabric weight and reinforcement | Reinforced seams, bound edges, and patches at contact points where the cover meets sharp frame corners. | Heavier fabric may resist abrasion better but can be harder to handle and may hold more heat if ventilation is poor. |
If a maker publishes a hydrostatic-head figure, it describes resistance to water pressure, not a guarantee against leaks at seams or under pooled water. For exposed patios, prioritize seam construction, a stable top shape, vents and secure straps together. For a sheltered balcony, a lighter cover may be easier to manage. “Heavy duty” is most meaningful when supported by details such as fabric weight, reinforcement and closure design—not just the label.
Match the cover to the sectional material and setup
An l shaped garden sofa cover can protect wicker-look resin, timber or metal furniture, but the frame and setting affect what matters most. An l shaped rattan furniture cover should not press tightly against woven edges or snag on them; use a smooth inner surface and protect any exposed sharp fasteners. For natural rattan, keep the set dry and ventilated because trapped moisture can be particularly damaging. L shaped rattan garden furniture covers should be sized around the widest woven points, not the narrower metal base.
- Rainy, exposed garden: Choose a well-constructed waterproof or highly water-resistant cover with vents, reinforced seams and multiple tie-down points.
- Windy patio: Give priority to adjustable straps that can attach beneath the frame. A drawcord alone may not hold a large L-shaped cover in strong gusts.
- Covered balcony: A lighter breathable cover may be sufficient if the furniture is protected from direct rain and the cover is not exposed to strong wind.
- Furniture with a table joined to the sectional: Measure the full combined footprint and height. A cover shaped for seating alone may not clear the table.
A single-piece cover is convenient for a fixed layout, but can be awkward to lift off and store. Separate covers for each module are easier to handle and may fit better if the arrangement changes, though they create more edges where rain can enter. If buying a garden furniture set with cover, check that the included cover is actually shaped for the sectional configuration and lists dimensions; “included cover” does not necessarily mean a tailored fit.
What to check before buying
- Compare all four measurements with the maker’s diagram, especially the two arm lengths and corner depth.
- Confirm whether listed measurements describe the cover or the furniture it is intended to fit.
- Check that straps can reach beneath or around the frame and will not rub against moving parts.
- Look for vents, a way to prevent sagging, and reinforced contact points.
- Consider how you will dry and store the cover. Fold it only when fully dry, and avoid leaving it compressed against the furniture for long periods.
Searches for an l shaped garden furniture sale or garden furniture covers jysk may turn up different sizes and naming conventions, so use the measurements—not the retailer’s category name—to compare options. A tarpaulin to cover garden furniture can provide a temporary rain barrier, but a loose, flat tarp is more likely to flap, pool water and trap condensation. For regular outdoor use, a purpose-made cover with a shaped top, vents and attachment straps is generally easier to secure and less likely to rub against the sectional.
When dimensions fall between two sizes, check the manufacturer’s fit guidance before sizing up. Choose the larger option only if its straps can still hold the hem securely and the extra material will not create a broad, loose surface for wind to catch.
