Quick answer
Choose a cabinet gas strut by checking five things together: door weight, door height, hinge position, desired opening angle, and available mounting space. The Newton rating is only the strut force. It is not a direct cabinet-door weight limit.
A 100N gas strut provides about 22 lb-force per strut, but the usable support changes with the mounting angle and leverage. A short, light door may work with one strut. A wider, heavier, or frequently used lift-up door often needs two matching struts installed symmetrically.
What do gas struts do on cabinet doors?
Cabinet gas struts support doors and lids that open upward. They work alongside the hinges to assist lifting, hold the door in the open position, and control part of the opening and closing movement.
A gas strut does not replace the cabinet hinge. The hinge creates the pivot point and controls alignment. The gas strut adds force between the cabinet side and the moving door. If the hinges bind, sag, or are mounted incorrectly, adding a stronger strut will not fix the underlying problem.
| Hardware | Main job | What it does not do |
|---|---|---|
| Cabinet hinge | Creates the pivot, aligns the door, and defines its basic swing. | It does not provide enough lift support for every upward-opening door. |
| Gas strut | Adds lift support and helps hold or control an upward-opening door. | It is not a substitute for correctly installed hinges. |
| Mounting brackets | Set the strut angle, leverage, compressed position, and opening range. | They cannot be placed arbitrarily without changing performance. |
How to choose gas struts for cabinet doors
Do not start with the force number. Start with the door and cabinet. Record the measurements, decide how far the door should open, then test the mounting layout with the selected strut.
Weigh the finished door
Include the panel, frame, glass, handle, edge treatment, and any attached hardware. A sample door is more reliable than a material estimate.
Measure door height and width
Height changes the leverage from the top hinge. Width affects total weight and whether one-sided support may twist the door.
Check the center of gravity
On a plain rectangular door, the center of gravity is usually near the middle. Glass, frames, handles, and unequal construction can shift it.
Choose the opening angle
Confirm the door clears the ceiling, fascia, neighboring cabinets, crown molding, and the person using the cabinet.
Verify cabinet-side clearance
Check shelves, dividers, hinge plates, stored items, and the closed position. The strut must not bind, bottom out, or block the cabinet interior.
Test one door before repeating
Adjust the bracket locations until the door lifts, stays open, and closes without excessive force. Only then repeat the layout across matching cabinets.
Cabinet gas-strut force: what the Newton rating means
Gas-strut force is stated in Newtons. A 100N strut produces approximately 22 lb-force. That conversion describes the strut, not the maximum door weight.
A cabinet door creates turning force around the hinge. The farther the door’s center of gravity is from the hinge, the more torque the strut must counter. The strut’s mounting angle and distance from the hinge determine how much useful leverage it provides.
Practical relationship: door load depends on door weight × distance from the hinge to the center of gravity. Gas-strut support depends on strut force × its effective lever arm. Because both lever arms change as the door moves, a force rating alone cannot give a universal door-weight limit.
| Door behavior | Likely cause | What to check |
|---|---|---|
| Door drops or will not stay open | Too little usable support, poor leverage, or only one strut on a demanding door. | Door weight, bracket position, hinge distance, and whether two struts are needed. |
| Door shoots upward | Too much force or a mounting position with excessive leverage. | Force rating and both bracket locations. |
| Door is difficult to close | The strut is too strong, does not compress far enough, or is mounted incorrectly. | Compressed length, closing geometry, and force. |
| Door opens and closes smoothly | Correct balance | The door lifts with control, stays open, and closes without excessive pressure. |
What is a 100N gas strut used for?
A 100N cabinet gas strut is commonly used on light-to-medium top-hinged cabinet doors, overhead compartments, furniture lids, storage boxes, built-ins, RV cabinets, and similar lift-up applications.
The Berta Store model is rated at 100N per individual strut, has a 10-inch extended length, and is designed around an approximate 90°–100° opening range. Those specifications still require the bracket position and door geometry to be tested on the actual cabinet.
| Application | Why 100N may fit | What can change the result |
|---|---|---|
| Kitchen wall-cabinet lift-up door | Provides support for many light-to-medium upward-opening doors. | Door height, material, width, handle weight, and hinge position. |
| Overhead storage compartment | Helps keep the door supported above the user. | Available side clearance and the required opening angle. |
| Furniture or storage-box lid | Can reduce sudden closing and support the lid while open. | Lid depth, center of gravity, upholstery, and mounting points. |
| Wide or dense cabinet door | May work as a matched pair rather than a single strut. | Total weight, twisting risk, daily use, and hinge strength. |
For a ready-to-order cabinet-shop pack, see the Berta Store 100N hydraulic cabinet gas springs. The pack includes 20 individual struts, equivalent to 10 pairs, with brackets and screws.
How door weight, height and opening angle work together
Door weight is only one part of the selection. A taller door places its center of gravity farther from the top hinge, which increases the turning force. A wider door often weighs more and is also more likely to twist when supported from one side.
| Door factor | Effect on gas-strut selection | Shop response |
|---|---|---|
| More door weight | Increases the load the strut must balance. | Recheck force, mounting leverage, hinge capacity, and number of struts. |
| Greater door height | Moves the center of gravity farther from the top hinge. | Do not assume the same strut works because the width is unchanged. |
| Greater door width | Usually increases weight and the risk of uneven one-sided support. | Consider one matched strut on each side. |
| Glass, mirror, or heavy handle | Adds weight and can shift the center of gravity. | Weigh the finished assembly, not the bare panel. |
| Larger opening angle | Changes the final strut angle and clearance requirements. | Check ceiling, fascia, cabinet depth, and full extension before drilling. |
Gas-strut length and cabinet clearance
Gas-strut length is normally measured between the mounting centers when fully extended. The same strut also has a compressed length and a usable stroke. All three dimensions affect the cabinet layout.
A strut that is long enough when the door is open may still be too long to compress inside the closed cabinet. A shorter strut can fit the cabinet but may not reach the desired opening angle. Measure both positions before drilling.
| Dimension | Why it matters | What to verify |
|---|---|---|
| Extended length | Helps determine the open-door position and bracket separation. | The door reaches the intended angle without overextending the strut. |
| Compressed length | Determines whether the strut can fit when the door is closed. | The strut does not bottom out before the door fully closes. |
| Stroke | Controls how far the rod travels between closed and open positions. | The full movement fits within the cabinet geometry. |
| Cabinet depth | Limits available bracket placement and interior clearance. | The strut clears shelves, dividers, and stored items. |
| Door height | Changes the distance and angle between mounting points. | The selected length is appropriate for the actual door, not a generic diagram. |
The Berta Store cabinet strut has a 10-inch extended length. Treat that as a product dimension, not a universal mounting measurement. The exact hole locations still depend on the door and cabinet.
Cabinet gas-strut mounting position
Mounting position changes leverage, opening angle, closing force, and whether the strut fits inside the cabinet. Moving either bracket by a small amount can noticeably change the door behavior.
A common starting point is to place the moving attachment roughly one-third of the door length from the hinge, but that is only a layout starting point. Use the supplied hardware, installation guide, and an actual movement test before final drilling.
Professional rule: install and test one complete door first. Once the opening angle, closing pressure, clearance, and screw holding are correct, use a drilling template to repeat the layout.
Opening angle for lift-up cabinet doors
The opening angle should give comfortable access without sending the door into the ceiling, crown molding, fascia, or neighboring cabinetry. The bracket layout and strut length both affect the final angle.
| Opening range | Typical result | What to check |
|---|---|---|
| About 90° | Door opens roughly perpendicular to the cabinet face. | Head clearance, access to the upper shelf, and handle position. |
| About 100° | Provides slightly more access above the cabinet opening. | Ceiling, crown molding, door projection, and full strut extension. |
| Less than intended | The strut or bracket layout may stop the door early. | Extended length, moving bracket position, and interior interference. |
| More than intended | The door may contact surrounding surfaces or overextend the hardware. | Physical stops, bracket position, and the hinge’s permitted opening range. |
Berta Store’s 10-inch 100N cabinet gas spring is designed around an approximate 90°–100° opening angle when the mounting layout is appropriate.
One gas strut vs two gas struts
One strut may be enough for a narrow, light cabinet door. Two struts are usually the safer layout for wide, heavy, dense, or frequently used doors because the load is supported on both sides.
| Layout | Better for | Advantages | Watch for |
|---|---|---|---|
| One strut | Narrow, light doors and compact lids that test correctly. | Uses less interior space and fewer parts. | One-sided force can twist a wide door or load the hinge unevenly. |
| Two struts | Wider, heavier, high-use, glass, or furniture-style doors. | Balanced support and more symmetrical movement. | Both struts must match and the brackets must be mirrored accurately. |
| Two 100N struts | Doors that need more balanced support than one 100N strut provides. | Splits support across both cabinet sides. | Do not assume the door simply has a 200N weight capacity; geometry still controls usable force. |
Featured product: 100N hydraulic cabinet gas springs
Berta Store’s contractor pack is built for cabinet makers, installers, furniture shops, and multi-door projects that need consistent lift-up hardware.
Hydraulic gas springs for cabinets
Each strut provides 100N of lift support for upward-opening cabinet doors, overhead compartments, furniture lids, storage boxes, built-ins, and similar applications. The pack gives cabinet shops enough hardware for repeated installations and paired layouts.
Installation sequence for cabinet gas struts
The safest workflow is measurement, temporary testing, then final drilling. Do not copy a generic hole pattern across multiple cabinets before confirming the first door.
Install and align the hinges
Confirm the door opens freely, sits square, and does not rub the cabinet.
Mark the proposed mounting points
Use the product guide as a starting layout. Check the cabinet-side and door-side positions together.
Check open and closed clearance
Make sure the strut fits fully closed and reaches the desired angle without binding or overextending.
Pre-drill suitable pilot holes
Use pilot sizes appropriate for the screws and cabinet material. Avoid weak edges and damaged particleboard or MDF.
Attach the brackets securely
Keep the fittings aligned and install paired brackets symmetrically.
Cycle the door repeatedly
Open and close the door several times. Check screw movement, hinge stress, closing pressure, and interference before copying the layout.
Common gas-strut problems and corrections
| Problem | Likely reason | Correction |
|---|---|---|
| Door will not close completely | Strut bottoms out, force is excessive, or brackets are too far apart in the closed position. | Recheck compressed length and mounting-point geometry. |
| Door falls near the top | Insufficient support or poor leverage through part of the swing. | Review force, mounting points, and whether a second strut is needed. |
| Door twists while opening | One-sided support on a wide door or uneven hinge resistance. | Use matched struts on both sides and correct hinge alignment. |
| Screws loosen | Weak mounting material, undersized screws, excessive force, or side loading. | Repair the mounting area, improve fastening, and confirm the strut is aligned. |
| Movement feels rough | Misaligned fittings, side load, damaged rod, dirty hardware, or binding hinges. | Stop using the door until alignment and hardware condition are checked. |
| Opening angle is wrong | Bracket position or strut length does not match the cabinet geometry. | Reposition only after testing both the open and closed positions. |
FAQ
How do I choose gas struts for cabinet doors?
Check the finished door weight, height, width, hinge position, desired opening angle, cabinet depth, and available side clearance. Then choose a force and length that can be tested on one complete door before repeating the installation.
What does 100N mean on a cabinet gas strut?
It means the individual gas strut has a force rating of 100 Newtons, approximately 22 lb-force. It does not mean the strut supports a 22-pound cabinet door because mounting geometry and leverage change the usable support.
Can I use one 100N gas strut on a cabinet door?
A single 100N strut may work on a narrow, light door if the tested movement is balanced. Wider, heavier, or high-use doors often work better with one matching strut on each side.
Do two 100N struts equal 200N?
They provide two 100N force sources, but that does not create a universal 200N door-weight capacity. The angle and lever arm of each strut still determine how much useful support reaches the door.
Where should a cabinet gas strut be mounted?
One bracket mounts to the cabinet side and the other to the moving door. Exact locations depend on the strut length, door height, hinge position, and target opening angle. Use the supplied guide as a starting point and test the motion before final drilling.
Should the gas-strut rod point up or down?
Where the cabinet layout allows, standard gas springs are generally mounted with the piston rod pointing downward through the working range. This helps keep the seal lubricated and supports end-of-stroke damping.
What opening angle works for cabinet gas struts?
Many lift-up cabinet doors use an opening angle near 90°–100°. The correct angle depends on access, ceiling clearance, cabinet design, hinge range, strut length, and mounting position.
How many cabinet doors can a 20-piece pack cover?
Twenty individual struts equal ten pairs. The pack can cover up to ten paired installations, or more doors when a tested one-strut layout is appropriate.
Can cabinet gas struts replace hinges?
No. Gas struts provide lift support and motion control. Cabinet hinges are still required to create the pivot, align the door, and carry the door correctly.
Bottom line
The correct cabinet gas strut is selected by geometry, not the force number alone. Door weight, height, center of gravity, hinge position, bracket location, strut length, and opening angle all work together.
Use one strut only when a narrow, light door tests correctly without twisting. Use two matching struts for wider, heavier, high-use, glass, or furniture-style doors that need balanced support.
For lift-up doors and multi-cabinet projects, review the specifications and installation details for Berta Store’s 20-piece 100N hydraulic cabinet gas spring pack. It includes 20 individual struts, brackets, and screws in white or silver finishes.
