Complete Guide to Gas Strut Sizes and Dimensions
Complete Guide to Gas Strut Sizes and Dimensions

Selecting the right gas struts size is the key to smooth lifting, controlled motion, and long-term durability. Whether you’re designing cabinets, truck tool boxes, camper shells, or industrial equipment, choosing the correct size ensures safety, stability, and performance.In this guide, we’ll break down everything you need to know about gas strut sizes, dimensions, and how to read a size chart correctly.

GASTAC is a professional gas struts manufacturer with 20 years of experience in the gas spring industry. If you need standard gas strut sizes, please visit our gas springs online store to place your order. If you require custom sizes or are unsure which specification suits your application, please email us to obtain detailed sizing information and technical support.

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Gas Struts by Size Specifications

The specifications of gas struts are typically determined by four core dimensions: rod and tube diameter, extended length, stroke and force (Newtons).Standard sizes are often categorized by the rod-to-tube ratio, such as 6-15, 8-18, 10-23, and 14-28.

SeriesStroke RangeForce Range (N)Application
6-15 Series 60 – 200mm50 – 400 NLight cabinet doors
8-18 Series 60 – 300mm100 – 650 NCar hoods, office chairs
10-22 Series60 – 400mm150 – 1200 NSUV tailgates, truck covers
14-28 Series60 – 500mm200 – 2500 NHeavy industrial lids

Why Gas Struts by Size Matter

Not all gas struts are created equal. Even small differences in length or force can dramatically affect how your application performs.Choosing the wrong size can result in:

  • Doors that won’t stay open
  • Excessive closing force
  • Misalignment or premature wear
  • Safety risks

That’s why understanding gas strut sizes is more than just measuring length — it’s about matching stroke, force, and mounting geometry.

Gas Strut Dimensions Selection Guidelines

When evaluating gas strut dimensions, there are three primary measurements to consider:

  • Extended Length: The total length of the gas strut when fully extended, measured from center to center of mounting points.
  • Stroke Length: The distance the rod travels from closed to fully extended.
  • Rod and Tube Diameter: Common combinations include 6/15, 8/18, 10/22, and 14/28 mm. Larger diameters typically provide higher force capacity and durability.
  • Force (N): Force is measured in Newtons (N). A basic conversion for estimation is 1kg = 10N. For a 10lb door, a strut between 50N and 100N is typically required.

Gas Strut Size Chart for Quick Reference

The GASTAC gas strut size chart offers a clear and organized overview of rod and tube diameters, extended length, stroke, and force ranges. Designed for engineers, distributors, and OEM buyers, it simplifies model selection, speeds up replacement matching, and reduces sizing errors, ensuring precise fit and reliable performance in every application.

6-15 Gas Struts Size Chart

GASTAC CodeStroke Length  (mm)Extended Length (mm)Compressed Length C (mm)Rod/Body Diameter  (mm)Force Range F1 (N)
GTS61515550401551156/1550-400
GTS61519550602251656/1550-400
GTS61523550802351556/1550-400
GTS61525550802551756/1550-400
GTS615275501002751756/1550-400
GTS615315501203151956/1550-400
GTS615330501253302056/1550-400
GTS615375501503752256/1550-400
GTS615390501603902306/1550-400
GTS615430501754302556/1550-400
GTS615505502105052956/1550-400

8-18 Gas Struts Size Chart

GASTAC CodeStroke Length  (mm)Extended Length (mm)Compressed Length C (mm)Rod/Body Diameter  (mm)Force Range F1 (N)
GTS8183106501203101908/18100-650
GTS8183906501603902308/18100-650
GTS8184106501704102408/18100-650
GTS8185106502155102958/18100-650
GTS8185256502255253008/18100-650
GTS8185856502555853308/18100-650
GTS8186106502656103458/18100-650
GTS8186306502806303508/18100-650
GTS8187106503157103958/18100-650

10-22 Gas Struts Size Chart

GASTAC CodeStroke Length  (mm)Extended Length (mm)Compressed Length C (mm)Rod/Body Diameter  (mm)Force Range F1 (N)
GTS1022585120025558533010/22150-1200
GTS1022700120030570039510/22150-1200
GTS1022820120036082046010/22150-1200
GTS1022900120040090050010/22150-1200
GTS102210001200450100055010/22150-1200
GTS102211001200500110060010/22150-1200

14-28 Gas Struts Size Chart

GASTAC CodeStroke Length  (mm)Extended Length (mm)Compressed Length C (mm)Rod/Body Diameter  (mm)Force Range F1 (N)
GTS142811002500500110060014/28100-2500
GTS142812002500545120065514/28100-2500
GTS142813002500600130070014/28100-2500
GTS142814002500650140075014/28100-2500
GTS142815502500700155085014/28100-2500
GTS142816502500750165090014/28100-2500
GTS1428180025008001800100014/28100-2500
GTS1428190025008501900105014/28100-2500

Common Applications That Depend on Gas Strut Sizes

Common applications that depend on accurate gas strut sizes include cabinet doors, truck tool boxes, camper shell windows, RV compartments, medical beds, adjustable desks, and industrial machine covers. Correct rod diameter, extended length, and stroke ensure smooth lifting, controlled motion, and safe support. Proper sizing prevents misalignment, excessive force, and premature wear, guaranteeing long-term stability and user safety.

Stainless Steel Gas Struts

Marine Gas Struts

tanning bed shocks

Tanning Bed Shocks

tool box struts

Tool Box Struts

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Bed Lift Kits

Cabinet Gas Struts

window gas struts

Window Gas Struts

Tension Gas Springs

Tension Gas Springs

Engine Hoods for gas spring

Car Gas Struts

locking gas spring 1 600x400 1

Medical Gas Springs

Factors to Consider When Choosing Gas Strut Sizes

When choosing gas strut sizes, consider the load weight, mounting angle, required stroke, extended length, and rod and tube diameters. Proper force rating ensures smooth operation, safety, and longevity. Accounting for application type and space constraints helps achieve precise fit and reliable performance.

1. Weight of the Application

The weight of the object the gas strut will support is the primary consideration. Gas struts come in various force ratings, measured in Newtons (N). Knowing the object’s weight helps determine the appropriate force needed to lift and hold it securely (Gas Struts Cover Weight Calculator).

gas strut sizes

2. Dimensions of the Gas Strut

Gas struts are offered in different lengths and stroke sizes. To select the right size (Gas Strut Length Calculator):

  • Measure the extended length: the total length of the gas strut when fully extended.
  • Measure the stroke length: the distance the rod travels from the closed to fully extended position.
how to measure gas struts

3. Mounting Points and Angles

Proper placement of the gas strut’s mounting brackets is essential. Typically (Gas Strut Length Formula):

  • Position the gas strut closer to the hinge to reduce the required force.
  • Ensure the angle allows smooth operation without overextension.

4. Desired Opening Force

Consider how easily the application should open or close. A gas strut with excessive force can make opening difficult, while one with insufficient force may fail to hold the application open (Gas struts Force Calculator).

Precision Size Means Reliable Performance

Choosing gas struts by size isn’t just a technical decision — it’s a performance investment. The right dimensions ensure smooth lifting, controlled motion, and long service life.

If you’re unsure which size fits your application, consult a professional supplier who can provide a detailed gas strut size chart and technical support.

Gas Spring Brand Company

Choose the right gas spring product from leading gas spring brand companies based on your application needs. Each manufacturer offers unique advantages in force range, durability, materials, customization options, and pricing. Compare specifications carefully to find the ideal solution for performance and reliability.

Gastac SuspaCamlocIGSStabilus
ACE ControlsHinschaMetrolStrutsDepotMcmaster

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