How to Measure Gas Struts for Bed: Ottoman and Storage Types
Which Beds Need Gas Struts, and When to Replace Them
Gas struts are commonly used in ottoman beds, storage beds, and lift-up bed frames to provide assistance when lifting the mattress platform. These struts make it easier to access the storage space underneath the bed. Over time, gas struts can lose their pressure, making it difficult to lift or keep the bed raised. If you find yourself struggling to lift the bed or if it doesn’t stay up on its own, it’s likely time to replace the gas struts.
How do I know my bed strut needs replacing?
Bed struts lose pressure over time. Key signs include difficulty lifting the bed, the bed falling closed on its own, or visible damage to the strut itself. Replacing them restores smooth operation.
- Inability to lift the bed frame easily
- The bed frame not staying up on its own
- Unusual noises when lifting or lowering the bed
- Visible damage or leaks on the gas strut
- The bed frame slams shut instead of lowering gently
What Size Strut Does a Bed Need?
The correct size of gas strut for your bed depends on several factors including the weight of the bed frame and mattress, and the dimensions of the bed. It is crucial to get the correct length, stroke and force rating to ensure the bed functions correctly and safely.
| Measurement | Description | Importance |
|---|---|---|
| Extended Length | The total length of the strut when fully extended, measured from eye-to-eye. | Ensures the bed frame can fully open. |
| Stroke Length | The distance the strut compresses from its fully extended to fully compressed position. | Determines how far the bed frame will lift. |
| Force Rating (Newtons) | The amount of force the strut exerts, measured in Newtons (N). | Affects how easily the bed frame lifts and stays open. |
| End Fittings | The type of connectors at each end of the strut (e.g., ball socket, eyelet). | Ensures compatibility with the bed frame. |
How do I measure a gas strut for replacement?
To measure a gas strut, fully extend it and measure the eye-to-eye length. Then, measure the stroke length (the distance it compresses). Finally, note the force rating in Newtons (N) printed on the strut’s body.
- Extended Length: Measure from the center of one end fitting to the center of the other when the strut is fully extended.
- Compressed Length: Measure the same distance when the strut is fully compressed. This plus the stroke gives you the extended length.
- Stroke Length: Subtract the compressed length from the extended length. This is how far the strut travels.
- Force Rating: Look for a Newton (N) rating printed on the body of the strut. This indicates the force the strut provides.
- End Fittings: Identify the type of end fittings (e.g., ball sockets, eyelets) and their dimensions. Common types are listed in the Gas Strut End Fittings Guide.
How do I find the Newton force needed for my bed?
The Newton force needed depends on the weight of the bed frame and mattress. Use our Gas Spring Force Calculator to determine the correct force after measuring the bed’s dimensions and weight.
The gas strut force calculator requires some inputs. Make sure you have the following:
- Weight of the mattress in kilograms (kg) or pounds (lbs).
- Weight of the bed frame top (the part that lifts) in kilograms (kg) or pounds (lbs).
- The distance in millimetres (mm) from the hinge to the center of gravity of the lifting part of the bed.
- The angle in degrees that the bed will lift to (typically between 60 and 90 degrees).
Step-by-Step Guide: Measuring Gas Struts for Beds
Follow these steps to accurately measure your gas struts and ensure you order the correct replacements. Taking accurate measurements and understanding the specifications will guarantee the new struts fit properly and restore the functionality of your bed.
- Tools Needed:
- Measuring tape or ruler (preferably metric for accuracy)
- Pencil and paper for recording measurements
- Optional: Digital scale for weighing the bed frame and mattress
1. Prepare the Bed Frame
Ensure the bed frame is stable and safe to work on. If possible, have someone assist you to hold the frame or mattress while you take measurements. Safely prop the bed open or have someone hold it open while you’re working.
2. Locate the Existing Gas Struts
Identify the gas struts that need replacing. They are usually located on the inside of the bed frame, connecting the base to the lifting section. Note their position and how they are attached. It is quite common for ottoman beds to have more than one gas strut on each side of the bed.
3. Measure the Extended Length
With the gas strut fully extended (the bed frame fully open), measure the distance from the center of the attachment point on one end to the center of the attachment point on the other end. This is the extended length. Record this measurement. Ensure the strut is fully extended to get an accurate measurement. Ideally do this twice to be sure.
4. Measure the Stroke Length
The stroke length is the distance the gas strut compresses. If possible, compress the strut fully and measure the distance between the attachment points. Alternatively, you can find the stroke length by subtracting the compressed length from the extended length. Record this measurement. Note that if the strut is already dead, the stroke length may have to be estimated.
5. Identify the Force Rating (Newtons)
Look for a label or stamp on the body of the gas strut. It usually indicates the force rating in Newtons (N). This is the amount of force the strut exerts. If the label is worn or unreadable, you may need to estimate the force rating based on the bed frame and mattress weight (our Gas Spring Force Calculator can help).
6. Check the End Fittings
Examine the end fittings on the gas strut. Common types include ball sockets, eyelets, and threaded ends. Note the type and size of the fittings, as you’ll need to match these when ordering replacements. If you don’t recognise the end fitting, check our Gas Strut End Fittings Guide.
7. Record All Measurements and Specifications
Compile all the measurements and specifications you’ve gathered including the extended length, stroke length, force rating, and end fitting types. This information will be crucial when ordering replacement gas struts.
Where Can I Buy One?
Replacement gas struts for beds are available from Amazon and specialist suppliers like Aritech Gas Springs. Ensure the replacement strut matches all measured specifications to guarantee a proper fit and function.
For a wide selection of gas struts suitable for various bed types, check out the gas struts available on Amazon. Ensure you carefully verify the specifications to match your requirements.
Gas Strut Brands Compared: Stabilus, Sachs, Monroe, Meyle
When selecting replacement gas struts, consider reputable brands like Stabilus, Sachs, Monroe, and Meyle. These brands are known for their quality and durability. Check customer reviews and product specifications to make an informed decision.
For bespoke or bulk orders, contact our industrial team